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Cornet ED78S EMF Meter – My Review

Posted by Lloyd Burrell on April 20, 2013 under Cornet meter, EMF meters | 157 Comments to Read

Those people from Cornet have done it again.

They just keep doing it, again and again.

Bringing out new EMF meters, that is.

And they do it for a reason. They keep improving them

This new EMF meter is called the Cornet ED78S.

Does this meter revolutionize the world of EMF meters?

I wouldn’t go that far but the ED78S is a great little package.

Here warts and all is what I can say about it.

The Technical Specifications of The Cornet ED78S EMF Meter

Cornet ED78S RF and Magnetic Field meterFor the purists this is what the Cornet ED78S boils down to:

Dual operation mode: Radio Frequency meter mode and Gauss (LF) meter mode

RF meter frequency range: 100MHz to 8GHz

Sensitivity: 14 mV/m to 26.2 V/m (RF meter), 0.1 mG to 600 mG (Gauss meter).

Gauss meter frequency range: 50Hz to 10KHz

LF1: 50Hz to 10KHz (0.1uT to 60uT)/(1mG to 600mG).

LF2: 50Hz to 1KHz (0.01uT to 1uT)/(0.1mG to 10mG)

Sampling rate: 3500/sec. Display update rate: 2/sec.

Error rate: +/- 3.5dBm

Audio Sound ON/OFF control, programmable Alarm triggering level.

LCD Histogram and bar display to display power density level.

Built-in Antenna.

Compact size, 69mmX110mm.

Battery operated (9V DC)

If at this stage you’re thinking ‘OK but what does all this mean’? Watch this short video to get clear on what this meter is really about (to watch the video click the image below):

Why Would You Buy The Cornet ED78S?

You’d buy this meter because you wanted to measure the EMFs in your environment. OK, but what EMFs?

This meter measures 2 types of EMFs:

radio frequency radiation. Thats to say EMFs from things like

- cell phones and smart phones

- smart meters

- cell phone towers (base stations)

- WiFi routers and modems

- Cordless (DECT) phones

- Wimax

- Spy cameras

- Digital baby monitors

- Digital TV

- A/V Sender Receivers

- Wireless burglar alarms

- Wireless video games (Playsation 3 and the like)

magnetic fields: Thats to say EMFs from things like:

- electrical powerlines

- your house wiring

- electrical substation EMFs

Why I Like The Cornet ED78S EMF Meter

  1. Its like having 2 meters in one. This is not unique. Cornet have done this before with the Cornet ED75. But the ED78S is a better meter than the ED75 both for RF readings, it measures up to 8 Ghz (the ED75 only measures to 6 Ghz) and for magnetic field readings  it measures right from 0.1 mG (the ED75 measures from 1 mG). It also costs more than the ED75.
  2. Its sensitivity. It has two magnetic field settings, on the lowest one not only does it measure magnetic fields from 0.1 mG to 10 mG, but it also has a resolution of 0.1 mG. This means its very sensitive (ED75 has a resolution of 0.5 mG).
  3. The sound function. I’m a big fan of being able to hear the EMFs because it conveys so much information. While I was testing I noticed I was picking up RF radiation on the audio which was not reflected on the display. Getting information on extremely low levels of EMFs is important. The more sensitive your EMF meter is, the better. Having this sound function definitely improves this aspect.
  4. The histogram function. Its the little box on the right of the LCD display. It shows the last 32 readings since you switched the meter on. This is ideal for measuring smart meter radiation which comes in short bursts. Because the ED78S samples 3500 times per second it can pick up things you might miss, having the histogram and maximum signal level makes it easy to observe these bursts.
  5. Its price. It’s currently sold around $10 cheaper than the Cornet ED85EX. Given that you get a magnetic field meter with the ED78S (the ED85EX only measures RF radiation) this does seem a much better deal. In its defense the ED85EX still has a slightly broader range than the ED78S (1MHz to 8GHz, compared to 100MHz to 8GHz for the ED78S) and the ED85EX offers the possibility of being able to connect an external antenna, which the ED78S does not.

What I Didn’t Like About This Meter

  1. The choice of measurement units. For magnetic field mode it gives you the main reading in Tesla. You have to look underneath at the small figures to get the milligauss reading (most of the international standards refer to mG). For RF mode the default setting is on mW/m2 (milliwatts per square meter). For biological measurements, which is what we are interested in, V/m (volts per meter) is better. But to be fair you can go into the menu and change it to V/m. Press down the hold button while pressing on the mode button to get into the menu.
  2. It can’t measure LF electrical field radiation. It’s not really a fair criticism, but if this meter could also measure electrical fields it would stand head and shoulders above the others. Remember the Trifield 100XE can measure electric fields, magnetic fields and RF radiation. And on the 0-3 magnetic field setting the Trifield is more sensitive than the ED78S.  But then its RF meter setting is such a blunt instrument its of very limited use.

Where Can You Buy The Cornet ED78S EMF Meter?

You can buy it from this company. Their customer service is excellent (90 day money back guarantee – if you’re not satisfied they really do refund) and they offer free worldwide shipping. If you’ve any questions on the Cornet ED78S EMF meter you can put your question in the comment box below, and I’ll do my best to answer.

email
  • David McElroy said,

    Measuring EMF might be useful, but I doubt there is anyplace on Earth we can actually escape all the electronic radiation. We should press for independent research on the effects of EMF on living creatures and our mental health in particular. Such research should be widely published and used to mitigate the risks (and nefarious uses) of EMF.

  • Lynn D said,

    What gives off EF ? Can EF be reduced by placement ( or we can remove item ).

    just found this, http://www.amazon.com/Code-Bros-EMF-Sensor-Free/dp/B008J9DGQ4/ref=sr_1_1?s=mobile-apps&ie=UTF8&qid=1366476473&sr=1-1&keywords=emf is it an ap or a meter?

    If you were going to get just one meter, would it be tri field or this? or a giegahertz 3030B
    Thanks
    Lynn D

  • Lloyd said,

    I talk mainly about EMFs (electromagnetic fields) …..EFs…electric fields are only one element of this. Anything electrical can create an EMF. Increasing the distance between you and the EMF source will always reduce your exposure. The link you refer to….not sure what this is….there are many EMF meters on the market….some of them are so inaccurate and insensitive they are basically useless…and a waste of money…the EMF meters I have tested and recommend are on this website. What meter you buy depends on what kind of EMF you want to measure…my free EMF protection report can help you get clear on this.

  • Marian said,

    Hi Lloyd,
    Thank you for all the information. I am feeling sick with all the computer, upcs, routers, etc in my office.
    I am in the process to buy my first emf meter and also would like to know what should I use as a shield to put between me and all the equipments

  • Lloyd said,

    Hi Marian
    The best ‘shield’ is distance…..also think in terms of eliminating WiFi, external wired keyboard, external wired mouse, grounding your computer equipment…for more information on this, see http://www.electricsense.com/1138/my-9-tips-to-cut-down-on-exposure-to-computer-radiation/

  • Chantal Blais said,

    I do have a ED 85EX and it do not mesure the 4G antenna. Is this new one will be able to detect them?
    Thank you!

  • Lloyd said,

    For RF measurements (2G, 3G, 4G etc) the ED 85 EX is the better choice. But both the Cornet ED 85EX and ED78S will measure 4G.

  • Kitty said,

    I’m new to the EMF topic and I’m having trouble digesting all the specs and info. What model do you recommend for basic household use, the Comet or the Trifield? I’m interested in quality and ease of use. Rechargeable is nice too. What types of things emit LF’s? Also where can I locate recommended limits for immediate surrounds?

  • Lloyd said,

    The first thing is to get clear on what you want to measure around the house. If you want to measure mainly magnetic fields and electric fields then the Trifield 100 XE is a good starter meter. If you want to measure magnetic fields and RF radiation (EMFs from things like WiFi, cell phones and smart meters) then the Cornet ED78S is a better choice. LFs…low frequency fields…usually refers to magnetic fields…download my free EMF protection report to better understand the issues and terminology.

  • LEO G YOUNGER said,

    Thanks. I ordered the ED78S. Hybrid vehicles with their large batteries & electric motors which stop & start frequently, are of concern regarding health of the driver & passengers. Which meter would be best to assess fields adverse to health when using such vehicles?

  • Lloyd said,

    There may be some electrical fields but the biggest EMF problem in vehicles is generally DC magnetic fields – this what I’ve found. The ED78S is designed to measure AC magnetic fields….it will only give an indication of the DC magnetic fields in vehicles. If you want an accurate reading you will need a DC milligauss meter, lessemf.com sell an AC/DC Milligauss meter suitable for this purpose.

  • Nathan Woodhouse said,

    Are there any meters that measure just the 50Hz (mains frequency in Australia) without including below 49Hz and above 51Hz?

  • Lloyd said,

    All the EMF meters I’ve reviewed give just a global reading- for health this is what you need to know. If you want to be able to obtain readings of EMFs at different frequencies you need to buy a spectrum analyzer.

  • G WARDNER said,

    i tried to order the new cornet meter you suggest but they do not accept my mastercard??? I was in a hurry to get this meter but now i am leary that they do not accept mastercard…. help thnx

  • Lloyd said,

    There is a link on my review above to order through Radmeters, they accept Visa and Mastercard.

  • Jack Small said,

    Thank you for your response. I have the Trified Full Spectrum Electromagnetic Meter. Do you sell or can let me know where I can get a emf protector to pt on me phone in my cordless phone in my office. I don’t use my cell phone on regular basis. However,
    I am also on my cordless phone .

    Thank you, Jack Small

  • Lloyd said,

    I’m not sure what you mean by ‘EMF protector’ – if you mean a chip or diode which you stick on your phone which is supposed to protect you from EMFs, I suggest you read my EMF protection free report first, which lays out the dangers of these kinds of devices and what real solutions can be applied.

  • George K. said,

    Hi Lloyd,
    Thanks for the review, I purchased this device some weeks ago after I have read most of your reviews on EMF meters and I’m really happy with it. I think it’s a great meter considering its features and the price.
    My only concern is about the +/- 3.5dBm error rate which I don’t really know how to ‘project’ on the readings I am getting on the display.
    Could you please provide some explanation on this with some examples ?
    Let’s say, I have a reading of 0.1 mW/m2. What is the range of possible real values ? Same for 1 mW/m2 or 10 mW/m2.
    Thanks a lot!

  • Lloyd said,

    Hi George
    Cornets measurement units of dBm are confusing. 0.1mW/m2 (which is 100uW/m2) is ~-37.5 dBm so the upper error value can be -34dBm (add 3.5) which is 0.23mW/m2 and the lower error value -41dBm which is 0.046mW/m2

    So when the meter shows a reading of 0.1mW/m2 the actual reading is between 0.046 mW/m2 and 0.23mW/m2.

  • luis marquez said,

    Hello Lloyd, I’m still waiting for your take on carbon based paints or aluminum panels to protect the inside of my condo.

  • Lloyd said,

    Using a high frequency shielding paint like Yshield is the easiest solution….these paints are easy to apply and if after applying you are still getting a reading you can apply more coats as necessary. For more tips on shielding see, http://www.electricsense.com/1299/cell-phone-tower-protection-tips-what-to-do-if-a-cell-phone-tower-is-erected-next-to-your-home/

  • Rob said,

    Re: WiFi Meter (plus, info on wi-fi sheilding material).

    Thanks Lloyd,

    Actually I bought one of these meters 5 years ago in the UK for around 70 squids, and its worked well all this time. (I repair PCs and provide an ElectroSmog consultation service for my customers, and this meter is the only tool I require for detection purposes).

    The negatives are: A protruding on/off switch, which means its quite prone to accidental switching on. I’ve largely gotten around this problem by placing three of those little oblong ‘sticky fixers’ around the switch to create a sort of protective sponge wall. I then pop the meter into a padded pencil case for safe keeping as no case was supplied with my meter.

    My second gripe is the battery housing. Once the battery is pushed (jammed) into this meter it often requires a screwdriver to lever the old battery out again. In fact recently I had to remove the meter’s back cover in order to get the battery out -and annoyingly bits of switch cover etc fell out.

    My third gripe is the lack of an ‘auto-shutoff’ faculty, which of course would prevent the battery being totally run down if left on by mistake. This feature may have been added in later models.

    Finally, on my model the back-light only stays on for about 20 seconds before annoyingly switching off to save power. It would be good to be able to increase the back-light time; and again this feature may be added in newer models.

    PS…..

    Cheap Wi-Fi shielding

    Just to mention that I discovered some cheap and quite effective shielding the other day by mistake. Last week I ordered a 5-pack of those emergency foil ‘space blankets’ (£5 from Amazon) and I was delighted to find that they are around 90% effective* in blocking wi-fi radiation. In addition they are also very large and lightweight, meaning you could probably cover an entire wall of a large room with just three or four of them.

    These foil space blankets also double as a sort of makeshift wi-fi shield when you’re in a hotel etc – and they can be easily draped over the head of the bed to protect your head while sleeping. (Some blue tack and strong thread would be useful to better place the shield, or drape it over your hotel bed). Or heck, just tape two blankets together to create a very warm! ‘anti wifi’ shield sleeping bag.

    * Note that I’ve only tested the foil blankets on a Netgear wi-fi router. In order to put it through its paces I also need to test it on something more powerful -such as a BT HomeHub router, and perhaps a cordless phone/base station, as these often admit much higher wifi output than the Netgear. But so far so good
    (It may be that I’ll need to double the foil blanket over in order to increase its blocking potential against more powerful wireless devices).

  • Lloyd said,

    Hi Rob
    The meter you bought 5 years ago can’t be the same one I have reviewed above….the Cornet ED78S has only been out a few months. All the Cornet meters look the same….the same case is used for lots of different models….but technically the meters are constantly evolving. The backlight can now be switched on and off using the hold function….an auto shut off would be an asset.
    Space blankets are a good low cost shielding solution but a word of warning…..using them to cover routers/modems and the like…..this can cause the device in question to power up their radiation emissions (many devices now increase their signal as and when necessary) which is counterproductive….the second point is, covering these devices in this way can be a fire hazard.

  • Rob said,

    Lloyd wrote…
    “Space blankets are a good low cost shielding solution but a word of warning…..using them to cover routers/modems and the like…..this can cause the device in question to power up their radiation emissions..”

    Good point Lloyd. But personally I dont tend to cover routers etc with the foil blankets, but instead I use them as a sheild.

    Regarding the meter. Mine is the Cornet ED25. Its still going strong after all these years.

  • Andrew said,

    Lloyd, what is the difference between the ED78S and the ED78G? Thank you.

  • Lloyd said,

    There is no difference. There is only one model for the ED78. For some reason the manufacturer sometimes calls it the ED78S and sometimes they call it the ED78G…..they are the same meters.

  • clyde said,

    Hi Lloyd, Good day, i have neurological movement disorder about 4 years of pain and suffering til present. I just want to know if E-smog is causing me to have a neurological movement disorder. what the best EMF meter? which one EMF meter can you recommend (analog or digital EMF meter)? Thank you

  • Lloyd said,

    Hi Clyde
    As far as I know there have been no studies done on the link between EMF exposures and neurological movement disorder specifically. But the studies are saying that EMFs cause neurological damage…..EMFs are extremely biologically active. Unfortunately there’s no one meter that can measure everything….a good starter meter is the Cornet ED78S. My EMF protection report is another good source of information on the subject.

  • David said,

    Is this meter suitable for both 50 and 60 hertz electrical systems

  • Lloyd said,

    Yes, the ED78S will give reliable readings on 50 or 60Hz electrical supplies.

  • Peter said,

    Thanks for all the information Lloyd.

    Is the ED78S single axis? I want to get a single axis meter because it would make it easier to determine the sources of radiation.

    If the ED78S is not single axis then perhaps the Cornet ED85EX would be a better choice for me because it is single axis?

  • Lloyd said,

    Hi Peter
    The Cornet ED78S is a single axis meter, as is the ED85EX.

  • Chris Gupta said,

    Hi Lloyd,

    I have send a query twice to support@radmeters.com, sales@radmeters.com as well via their web based input with no response. Needless to say I am a bit reluctant to buy from then, if they don’t even have the courtesy to respond on queries on your products. I am wondering if you have their phone # or some ohter way to get in touch with them?

    Thanks,

    Chris Gupta

  • Lloyd said,

    Hi Chris
    I can only go on my experience with Radmeters which is that the service is very good. Emails can go undelivered or can go into a spam folder. Unfortunately I don’t have another email address for them. Try sending your question from a different email address.

  • David said,

    Have had good feedback from the Cornet
    suppliers on order processing for the model we have
    just purchased.

  • Chris Gupta said,

    Thanks Lloyd, I tried again and finally got an answere for some reason they did not get my earlier enquires.

  • alexandra said,

    How long takes delivery to Australia
    Best Regards Alexandra

  • Lloyd said,

    I don’t sell this meter. For delivery information you need to contact the seller above.

  • David said,

    It took one week from Israel to New Zealand

  • EHP said,

    I am looking for a meter to measure EMF from a neighborhood power pole and measure EMF from the panel where electricity enters our house. What meter is best, Trifold 100xe? Looks like if I get Trifield meter then I will need a second to measure RF from cell phones, etc. What second meter would you recommend? Thx.

  • Lloyd said,

    The Cornet ED78S will measure magnetic fields from powerlines (generally considered to be the most dangerous element). But unlike the Trifield it will not measure electric fields….no one meter can measure everything…. but from what you are telling me the ED78S would be well suited for your needs. If you buy the Trifield first a good second meter would be the ED78S.

  • metatech said,

    Thanks Lloyd for this review, the ED78S seems to be the best compromise in todays’s EMF meters.
    I had some questions : does the measurement unit return to default on each off/on or is it permanently saved after being saved in the setup menu ?
    How do you disable the sound output ? Can the alarm be disabled separately from the sound output, or is it required to configure the alarm to a very high threshold to effectively disable it ?
    Thanks !

  • Lloyd said,

    - The measurement units remain as you saved them in the setup menu.
    - To activate the sound output you press and hold the upper black button and then click the lower black button and release both. In the same way you can turn the sound output off. If the meter is turned off and on the sound function will be off. The Alarm and sound output are different functions they can be disabled separately.
    - The alarm is configured in the setup menu. It can be either disabled or a threshold can be selected.

  • metatech said,

    Thanks Lloyd for your precise answers.
    I have some more questions : isn’t the sound a bit weak ? On the video, the sound is not easy to hear behind your voice. Is there a sound volume configuration ? or a headphone connector ?

  • Lloyd said,

    I think the audio sounding weak is more to do with the quality of my video than the sound function on the meter…the sound is quite clear. There’s no external jack to connect headphones….the Acoustimeter has an external jack.

  • PB said,

    For the new smart meters (for homes) being installed (some Californian’s fighting against forced installations) how would you shield your home from RFs if it is reading all smart appliances. (Don’t have this meter yet or Smart appliances, but supposedly all houses and appliances are going this way.) What kind of hertz are used in these meters?

    Thanks,

  • Lloyd said,

    See this post on smart meter shielding, http://www.electricsense.com/2431/smart-meter-shielding-tips/ These meters emit radio frequency radiation in the Ghz range. For a better understanding of how smart meters work, see http://www.electricsense.com/1256/smart-meters-electromagnetic-radiation-money-and-your-health/.
    Also, whether you have a smart meter or not, smart appliances will emit radiation into your home – you need to make sure you don’t equip your home with smart appliances.

  • Dag Inge Hansen said,

    I was exposed to WLAN/WIFI at work for about 5 years, with a distance of 2 meters or so. Now I have had some D-vitamin deficiency last year, that I thought were the real problem (diag. feb 2012), but now after another year with a very good recovery from this. I was now found myself working about 3 meters from a DECT-antenna in the hall for 10 months now. And I still couldn’t recover from the nose-bleeds that I have had for years (think about 2008 it started after I was under the WIFI exposure). Now I have discovered for about three weeks started to look for info about microwave radiation and what controversy this is and all the symptoms seem to fit me well. I just ordered this meter and are hopefull to measure my exposure. It’s also looking good at work because them are going to remove DECT-system as its getting old now.

  • Sim said,

    Hi,
    Thanks for all your Reviews. I’m quite affected by Smart Meter radiation (and also Mobile phones) but I’d also like to test around the house for other problem devices. So here are my queries?

    1) Would I be better off getting a Cornet ED78S or the Gigaherz combo of the ME3830B and the HF35C. I do realise that the latter option (2 separate meters) is about 3.5 times the price of the single Cornet meter but I’m asking if it’s worth it. Will the Gigaherz Meters give more accurate readings and be nicer to use? What would you say are the advantages/disadvantages?

    2) Once you have detected the sources and areas of high readings, what’s the best way to block them … and in particular, for a Smart Meter, you mention that, “the best solution is probably to use a reflector shield with shielding fabric directly behind the meter. And then an absorber shield, microwave absorber sheet for instance, on top of that.” So you think RIPSTOP SILVER FABRIC with MICROWAVE ABSORBING SHEET on top is best. Would Riptop Silver be better than Naturell? Would plain household foil or aluminium mesh flywire do the same job? How large should the shield be?

    3) Also if the Smart Meter happens to be installed on a board on an external wall so that there’s a little bit of wiggle room, would it be better to put the shield directly behind that board so that the shield would virtually be touching the Meter or would it be better to put the shield on the internal wall behind the meter so that there would be about 8 inches between the meter and the shield?

    Thanks again for this site and all your assistance.

  • Lloyd said,

    Hi
    1. It all depends on your budget. Given that you are experiencing symptoms of sensitivity you want to buy the best meter/s you can afford – no meter is going to be as sensitive to EMFs as you are. I can’t comment on the HF35C because I’ve never tested it but if your budget is limited the ED78S is a very good buy….if you have the financial means to buy an Acoustimeter to measure RF radiation then thats my preferred choice – see my meter reviews.
    2 & 3.The best way to deal with EMFs depends on the particular circumstances of the situation and again, your budget. With a smart meter, you must first exhaust all options for getting it removed by the utility company or by your own electrician before looking into shielding. There are 1000 and one ways to shield. Inexpensive materials like aluminum flywire can be very effective….if you have a good meter you can apply shielding, test to see the effectiveness and then re-shield as necessary.

  • Concerned Tenant said,

    I am concerned about the fact that I am living directly underneath a cellphone antenna so I came across your site looking for a meter that I should invest in. I was also recommended the Electrosmog 8Ghz RF meter or the HF Meter. However both are out of my budget. Does the Cornet ED78S EMF Meter detect cell antennas, directly above me (on my roof) and also up to 50 meters (roughly one apartment block away)? It says that it detects cell towers but I wanted to know if they detected cell antennas as well. Thank you again.

  • Concerned Tenant said,

    I also wanted to ask, what would you recommend as the best meter to measure EMF from cellphone antennas (I want to make sure I’m not exposed to it), below $200. Thank you again Lloyd.

  • Lloyd said,

    Just to be clear, cell towers are equipped with cell antennas which emit RF radiation….the Cornet ED78S is sufficiently sensitive and accurate to measure RF radiation from cell antennas.

  • Lloyd said,

    With a budget of $200 its difficult to do better than the ED78S….the Acoustimeter is a better meter but its a lot more expensive, see http://www.electricsense.com/2915/acoustimeter-am-10-rf-meter-my-review/

  • Jennifer Brushaber said,

    I have this exact model (ED78S), but it’s not picking up the smart meters in my neighborhood. I do not have a smart meter on my house, which I wanted to confirm and compare against the smart meters in the neighborhood. What type of reading should I expect to see from the smart meeting? Could I be doing something wrong?

  • Lloyd said,

    Smart meters emit relatively weak RF signals so you can expect readings below 1 V/m…..I suggest going to where the smart meters are in your neighborhood and testing there….stand withing 6 feet….some smart meters are not emitting all the time so you may have to test at different times of the day. You also need to use your meter around other RF sources…WiFi, cell phone etc…if you aren’t getting any readings then it would indicate that your Cornet meter is defective….in which case you need to send it back.

  • Alex said,

    Hello Lioyd,

    I have some questions to ask you.

    1. Have you compared the rf level measuring from Cornet ED78s and Acoustimeter?
    2. Does Cornet ED78s measure the peak or average strength?
    3. In the Cornet ED78s manual page, if the dBm uint is selected, it shows signal power level (-30 dBm) and field strength level (0.580 mw/m^2). What diferences are they (field strength and signal powers)? The reason I ask is I look at the emf unit conversion table—30 dBm is equal to 0.121 mw/m^2.
    4. Also in the Cornet ED78s manual page if the V/m uint is selected, it shows current field strenth 0.58 V/m, Max signal level 1.530, and the another reading without any explanation is A 0.53. I would like to ask what is meaning of the last reading (A 0.53)?

    Thanks

  • Lloyd said,

    I’ve compared the ED78 and the Acoustimeter….the Acoustimeter is the better of the two.
    The Cornet meters take 3000 measurements each 0.5 seconds and show the peak (max) value of them…. as for your other questions….these are quite technical…. I don’t want to mislead you…. I suggest you contact the manufacturer about this.

  • Barbara said,

    I wanted to know whether you knew anything about a SOEKS meter. Have you ever reviewed it? It is made in Russia and looks pretty impressive, but would like your comments before we go ahead and buy one.
    Thanks

  • Lloyd said,

    I’ve not reviewed this meter but I just googled it. I found the company that’s selling it – careful this meter measures in microsieverts (μSv / h) which is a measuring unit for radioactivity. This meter is not suitable for measuring EMFs round the home. My Free report talks about what EMFs you need to measure and what meters are suitable.

  • Jerome Roberts said,

    Many thanks for the excellent review.

  • Dag Inge Hansen said,

    I now have used this excellent meter for a few weeks, and are pleased with it. My exposures came mainly from work. (DECT & WIFI) The levels from my last exposed workplace of 10 months was in the red: 90mW/m2 peak, and 40mW/m2 average. Noticed also the workplace besides the WIFI at 15mW/m2 peak and 0.02mW/m2 average. The exposure at home was low, and in the safe sone. I can actually switch off the routers wifi-mode locally, and saw clear readings on the meter. I would recomend this meter (from http://www.RADMETERS.com) as a good and nescessary tool for detecting wifi, wireless, base-stations, smartmeter, etc…

  • kim said,

    Just received Cornet ED78S ( on your advice, big step, selecting a meter !) …
    … when I touch the side of the meter w/ my left hand, the measurements went up by 10 X factor. (reading of 1.25 would change to 12.5 if I touched meter….reading of 5.22 would shoot up to 52.00 w/ red/danger lights blinking )…but only w/ left hand touching it. Right hand touching same spot, meter in same spot…only 3 X increase. Course, wanna know why. The vendor couldn’t say why ( ” touching the meter may make numbers increase slightly” …end of discussion.

    ….it gets more perplexing…I went to a friends office to demonstrate this phenomenon, and it didn’t happen at her office( touching meter made no change ). Came back and double checked at home…same thing…10 x increase in reading when touching, or holding meter in Left hand.

    …I didn’t expect to have more questions than answers in finally purchasing a meter !!

  • Lloyd said,

    There are 2 possible explanations I can think of:
    1. your meter is faulty
    2. there is some kind of distorting effect when you touch your meter which varies depending on the environment you are in, different environments react differently because RF radiation interacts with different materials and surfaces differently. What really counts is that your meter gives you reliable readings when holding the meter normally.
    If you are withing the 60 day period you are within your rights to request a refund.

  • Louay said,

    I was wondering whether you have ever measured the EMF readings for a google nexus or Amazon kindle device. I would love to know how much EMF they give off as I have a google nexus and was thinking of getting a kindle but then wondered how much EMF they emit. I asked the same question to another EMF website and they responded by saying:

    “I’ve not measured the Google Nexus, but I have measured the Amazon Kindle which produces zero EMF while you are using it, except while you are downloading stuff onto it. Then it is a bit like a cellphone, except that you do not stick in right to your ear!

    I imagine the Google device is similar. I don’t think you need to worry too much about this kind of device. I recommend you don’t hold them while they are uploading or downloading. Otherwise they should be perfectly safe.”

    Looking for a second opinion. :-)

  • Lloyd said,

    I’ve not tested either of these devices – sorry I can’t be of more help.

  • crystal said,

    Do you think solar panel on the roof would intensify readings?

  • Lloyd said,

    Its very possible….the problem is not the solar panels themselves its the accompanying electronics which create EMFs….solar power installations create DC, a device called an inverter is then used to convert this low voltage DC to mains AC….2 issues 1. inverters and their cabling can be a source of electric and magnetic fields, 2.inverters can also introduce dirty electricity.

  • Margie said,

    Hi Lloyd,
    I cannot afford to buy more than 1 meter for testing at present time and I was thinking of buying the ‘Cornet ED78S’, to test if my shielding that I am putting up to protect against the smart meter and cell phone tower (which is within 400M from us ) is doing a good job or not.
    I also wanted a meter that would tell me when I was running into Wi-Fi and RFs when I was out of the house plus try and show people what their cell phones, microwaves and wireless devices were doing.

    I am also hearing that they are in the process of uping cell phone towers to 4G/LTE, which will mean even greater risks to our health.

    You now have the new ‘acoustimeter meter’ review out and I am not sure which to buy.
    Could you suggest which one would work better for these types of applications ?

  • Lloyd said,

    Both the Acousticom 2 and ED78S will work well for what you are doing. It really boils down to what you are looking….the Acousticom 2 is smaller and slightly more sensitive (which is a big deal if you are ES) but it only gives an indication of the reading and no recording of the data… the ED78S has better functionality….an LCD display and last 30 readings recorded etc.

  • crystal said,

    Do you think audio professional mixing studio gear (mixing board, rack mounted compressors, effects units ect) in a big room downstairs would have much effect on me upstairs in my house?

  • Lloyd said,

    There are two possible EMF sources that come to mind 1. RF radiation from wireless microphones and instruments 2. dirty electricity pollution. Given the electrical equipment its very possible that your DE pollution levels could be elevated when this equipment is plugged in, you can easily test this with a GS meter, see http://www.electricsense.com/1825/dirty-electricity-gs-filter/

  • Hillary said,

    Hi Lloyd,

    Over the past two years, I have developed HORRIBLE eczema. I’ve had hand eczema for years now, but suddenly it seemed, it went from there to full-blown, full-body eczema. My skin is at times unbearably itchy, and is red, like a terrible sunburn (that’s how it feels too). It is so dry, it’s almost like it repels moisture. I am miserable. All I could think that changed was that around that time we had two smart meters installed in our two-family home. We used to have tenant but we took over the whole house, so now we’re also living on the first floor, where the meters are installed. I spend a great deal of my working day working on my laptop and in the living room–about one to two feet away from the meters. What’s your take on this? My next step? Could there be a real connection there? Thank you so much for all your dedication to this cause!

  • Lloyd Burrell said,

    Hi Hillary
    I’ve had other reports from people linking EMF exposures to eczema though I know of no study on this. I’ve also noticed that EMF exposures tend to hone in on your weaknesses, so whatever health complaint you have already when you add EMFs into the equation it gets worse….so what your explaining is very possible. Your next step is to deal with these exposures, my EMF protection Free Report is a good place to start.

  • Crystal said,

    Hi, Lloyd,

    We appreciate all that your doing to educate we the people in such a tech driven society. I have a question for you. My son has chosen to conduct his science fair project on the dangers of cell phone radiation for children. With this said we are having a really rough time locating an inexpensive radiation meter for his prodject. Do have any suggestions.

    Thanks!

  • Lloyd Burrell said,

    Hi Crystal
    There are some very cheap meters around but as with most things you get what you pay for EMF meters…unless your meter has good sensitivity & accuracy you can easily waste your money. The cheapest meter I have tested for cell phone radiation is the Cornet ED75 – see my review.

  • Tom said,

    Lloyd,
    Thanks for all the info.

    1) What are your thoughts on indoor amplified antennas? I was told they are just receiving instruments and therefore are safe.
    2) I have turned off my wifi router and plug my laptop into the modem. Do you recommend I shut off the intel wifi driver on the laptop?

    Thanks again

  • Lloyd Burrell said,

    Hi Tom
    1.Amplified antennas are in theory just receiving instruments and so you wouldn’t expect to pick up a reading with an EMF meter….but there are possible subtle energy effects you may feel from being in proximity to such an antenna…….. which are difficult/impossible to measure

    2. Yes, shut the WiFi off on the computer also to avoid WiFi radiation from your laptop.

  • Jean said,

    I’ve purchased a Cornet ED78S for measuring reads from a power line communication “wired” smart meter because my Gigahertz solutions HF 35C is not picking up measures or sounds of 800Mhz to 2.4Ghz at my current residence. However, when measuring the same smart electric meters-with the same faceplate and writing- in the same power company’s territory, I’ve found they are programmed differently in different neighborhoods. Some have a constant wireless function while others do not. At my current home, the Cornet78ED shows following reads when I place the Cornet right up to the faceplate of the electric meter: continual pulses varying around 1.62 mW/m2; LF600= continual varying pulses around 35.00uT: LF30= 0.L uT maxed out continually.

    The thing is that I am lost as to what these reads mean. In other words am I getting reads from the SMPS- switching mode power supply, or is it the radio frequency being injected into the 60 Hz signal as it enters the home, and how “bad” are these reads?

    As a side note – I developed electro sensitivity right after this type of wired smart meter was placed on my former house – it was measuring constant pulsing microwaves with the HF35C. The ES symptoms continue at my current house to a lesser degree.

  • Lloyd Burrell said,

    A good indication of what these readings mean is to look at the LED display on the meter. The RF readings are your main concern here….. 1.62 mW/m2 is in the yellow which is not insignificant…whats more important is to know the ambient RF levels in your home….given the fact that you are experiencing symptoms you may want to consider shielding/having the meter removed.

  • Jason said,

    Hi Lloyd, I read through your website and EMF report and have also recently received my purchase of the Cornet ED78S. I have not been able to find any good information on what are considered “safe” RF or EMF levels. I live near a cell phone tower and outside my home my meter says 0.05mW/m2. How does this differ from W/m2 and what would you consider “safe?” Is there a good website that has a conversion table with levels that I might compare too? Thanks very much. Jason

  • Lloyd Burrell said,

    Hi Jason
    The ED78S gives an indication of whats ‘safe’ with the colors next to the LED lights….0.05mW/m2 is attributed a green color coding…. but there is no absolute safe level of RF radiation….studies are discovering adverse biological effects at lower and lower levels – see the BioInitiative Report 2012. For an understanding of the different measuring units see, http://www.electricsense.com/3772/how-to-understand-the-different-measurement-units-that-are-used-to-measure-emfs/

  • Alan said,

    I sent some comments/questions a week or two ago and don’t see where you responded. Could it be that you did respond and I just missed the response?

    Basically, I am looking for a more simple explanation of everything. i.e. a blog for dummies section. We are now on our third meter, Cornet ED-85EXS, 4190 F.W. Bell Gauss/Tesla Meter, and now a Stetzerizer Microsurge Meter model GS-M300-A, Graham Stetzer Filters Model GS-F110-A,

    1. What does each meter measure?
    2. Is there any duplication in what they measure
    3. The Cornet measures in (3) different ways, which way is best for a lay persons use?
    4. is the term RF a generic term that refers to all the different types of things we are measuring?
    5. I think from reading your blogs that there are different types of bad stuff we should be measuring and protecting against.
    * Electrical transmission lines, all in home appliances w/motors
    * cell towers, cell phones
    * Computer radiation,
    * routers, portable phones, tv’s
    * Dirty electricity

    I am totally confused; is there a place where all the different “waves” can be broken down CLEARLY INTO THEIR SEPERATE CATAGORIES and then match these seperate categories of bad stuff with each type of meter that is needed to measure all this bad stuff.

    I think you and others are assuming we know what you are talking about…. please , please “simplify it down to a lower level” there are a lot of DUMMIES OUT here me included when it comes to this type of stuff.

    thanks

  • Lloyd Burrell said,

    Hi Alan
    I never saw your questions 1st time round…apologies….I get many questions a day and try and reply to everyone which sometimes takes days (too long). I hear what you’re saying and you are right. This subject is confusing and no doubt I do assume people understand things they clearly don’t. Here are some quick answers to your questions:
    1. What does each meter measure? —
    Cornet ED-85EXS measures RF radiation
    4190 F.W. Bell Gauss/Tesla Meter measures magnetic fields (I’m not familiar with this meter)
    Stetzerizer Microsurge Meter model GS-M300-A measures dirty electricity
    2. Is there any duplication in what they measure — essentially they all measure different categories of EMFs
    3. The Cornet measures in (3) different ways, which way is best for a lay persons use? Use it on the V/m setting or mW/m2 setting – watch my video to see how to do this.
    4. is the term RF a generic term that refers to all the different types of things we are measuring? No it refers to one type of radiation…radio frequency radiation.
    5. I think from reading your blogs that there are different types of bad stuff we should be measuring and protecting against. I am totally confused; is there a place where all the different “waves” can be broken down CLEARLY INTO THEIR SEPERATE CATAGORIES and then match these seperate categories of bad stuff with each type of meter that is needed to measure all this bad stuff.— yes as follows:
    * Electrical transmission lines, all in home appliances w/motors — magnetic fields (MFs)
    * cell towers, cell phones — RF radiation
    * Computer radiation — all kinds of EMFs
    * routers, portable phones, tv’s — tvs probably dirty electricity and routers, portable phones Rf radiation
    * Dirty electricity
    Download and print out my free report for more information.

  • Sara said,

    They came out with Cornet ED85EXS how do you compare this with the Cornet ED78S? I want to buy a meter as soon as possible I want to measure around the house my house meter and my car. Should I get the latest version the ED85EXS or the ED783 is best.

  • Ken Crispin said,

    Hi Lloyd,
    I just received my ED 78S yesterday from RADMETERS, and having trouble turning on the backlight with my hold button. Also I do not get the RF side of the meter to accurately operate.
    At first it monitored variation levels of RF but now it switches on to go right up to maximum level of 26.22V/M and sets off the alarm, and I cant unlock that mode.

    I tried to reset, and adjust every item in the menu from 1 to 7 and it is locked there.
    Can you help or should I return it for another one, as the backlight option you offer does not work also?

    I would appreciate some advise. Can I dump all the memory and start again another way, I tried to remove the battery and start again but it still goes to RF 36.22 V/M and alarm goes off.
    The LF side works fine both levels though.

  • Ken Crispin said,

    Lloyd,
    I took out the battery again and pushed hold and mode buttons to try and purge the memory, and put it back together, and the RF goes into search mode with the historograph brushing across the small screen but there is no sampling taking place at all and the large screen shows 0.0006mW/m2, so does this mean it is malfunctioning in the RF sensor? thanks ken.

  • Lloyd Burrell said,

    Hi Ken
    It sounds like your meter is malfunctioning….it happens – I suggest you contact Radmeters about this.

  • Pat said,

    Hi Lloyd,
    Thank you for your responses to my previous questions. I did purchase the Coronet ED-78S meter and it is an eye opener to see the various readings around the house. My original reason for purchasing it was to test an ethernet cable outlet in my daughter’s dorm room, as she sleeps right next to it. The meter seemed to read low in the RF and LF settings around the actual outlet so I felt relieved. However, the wires that supply the outlet are encased in metal that run across the ceiling above her bunk bed. I noticed at 1 spot along the line, where there was an opening in the metal seam, the lowest LF30 reading read at .5 and the lower red lights went on. I’m confused as to how serious it is with the lowest LF reading, if the higher LF600 and RF reading did not register as concerning. Is there a source that explains the differences between the LF readings and at what point/number that they become concerning? The meter did not come with that sort of explanation. My guess is anything that gets into the red light section is more concerning, but maybe the lower LF30 is less concerning? Thanks for your advice, Pat

  • Lloyd Burrell said,

    Hi Pat
    The LF30 mode on the ED78S corresponds to the most sensitive setting and 0.5 corresponds to 0.5mG. Neither I nor anyone else can tell you what is absolutely safe but this reading is not particularly alarming. If you are looking for independent guidance I recommend you read the BioInitiative report 2012 and/or the Building Biology guidelines SBM 2008 – both are referenced on this website.

  • Jarkko said,

    Hei! Could you please help me. I am buying my first emf meter. The most important thing is to measure emf around electric wires, cables and gadegets. But i am also interested to see how wifi and 2g, 3g phones transmit.

    What meter do you recommend, ED78S or Trifield 100? Thanks

  • Lloyd Burrell said,

    The Trifield 100XE is not well suited to measuring cell phone radiation, the ED78S is a better choice.

  • kim said,

    Lloyd, could you educate us on the use of the fiberglass rod with the 3030B ? I’ve been taking my 3030B around measuring different people’s EMFs and was in a computer store testing the computers for EMFs … it’s sometimes impossible to connect the ground wire.

  • Lloyd Burrell said,

    I didn’t purchase the fiberglass rod for my 3030B so I can’t vouch for it in practice but I know that the rod is designed to enable you to take more accurate measurements without having to use the ground lead.

  • Brenda said,

    Hi Lloyd… thank you for all the information. I think I have a pretty good grasp of EMF’s after reading various information on your website. What I’m wondering is this… magnetic fields consist of ELF and VLF frequencies. Seems that all the meters you’ve reviewed handle the ELF frequencies just fine. But my understanding is that VLF includes frequencies 10,000 hz and higher. The highest range meters that you’ve reviewed only go up to 10khz (10,000 hz). What types of electronic devices should one be concerned about that are above the 10,000 hz range and are therefore not measurable by the devices you’ve reviewed?

  • Laara said,

    I wear an electric vest on my on my Harley-I am sitting over the battery and other electricals, perhaps a shield under the seat- I am getting arthritis in the SI joint could the fields be making it worse? This Comet ED78S sounds good- but not user friendly- what if I get it and don’t know how to use it- or what values to be concerned with, none of your videos of explaination would load/run for me. Thanks

  • Lloyd Burrell said,

    The biggest problem is likely to be magnetic fields with your Harley…..the Trifield 100 XE is a better choice if ease of operation is a priority for you…..this meter will also measure if there are any electric fields. If the videos won’t run on the site you can view them on my Youtube channel, http://www.youtube.com/user/RadiationProtection1

  • Jody said,

    I was thinking of either getting this meter or the Acousticom and was wandering, what do you mean when you say its not as sensitive? Will it still pick up the same readings around wifi and smart meters, etc?

  • Lloyd Burrell said,

    By more sensitive I mean that when I switch the two meters on and put them side by side the Acousticom detects low levels of RF radiation that the ED78 cannot detect.

  • Maikki said,

    Hi! Thanks for your great page and info.

    I have a question about ED78S and cellphone radiation. The meter doesnt respond much to 3G phones, but on 2G mode the calls make 100x more radiation. Is it normal? I read somewhere that 2G would be more safe than 3G, but it doesnt seem like it. Thanks

  • Lloyd Burrell said,

    It’s possible that in talk mode your 2G phone emits more RF radiation than your 3G phone…as awareness has grown over the dangers of these technologies cell phone companies have been working to make their phones more efficient and emit less radiation…this still doesn’t make them safe….its where 3G phones are used for data transmission that radiation levels are the highest.

  • Adrienne @ Whole New Mom said,

    Thanks for this. I need to get moving on so many aspects in our home. I heard you mentioned and recommended the Acousticom. Any thoughts on the pros and cons? I would like to get one as soon as possible. Thanks!

  • Lloyd Burrell said,

    The Acousticom 2 is a great little RF meter….its small, its got an excellent microwave detector (the same as its more expensive big brother the Acoustimeter) and for what you get its not overly expensive. This is the meter I like to take with me when I’m out and about – for my full review see http://www.electricsense.com/6485/acousticom-2-emf-meter-my-review/

  • DaveA said,

    Hi Lloyd,

    I suffer from EHS, bought your book, and am currently trying to detox my life…

    Recently, worried about possible RF radiation from the neighbours or nearby mobile phone masts, I bought the Cornet ED78S.

    Imagine my surprise to find that I get a fairly substantial RF reading not from these external sources, but from my fairly old electricity meter which – so far as I know – isn’t “smart”.

    The meter is located in my downstairs cloakroom, and results in hotspots in other locations – particularly my hall, but presumably, to a lesser degree, throughout the house.

    Any theories, in general, why this apparently non-smart meter might be emitting RF (i.e. wireless) radiation?

    Thanks in advance.

  • Lloyd Burrell said,

    Testing with an EMF is always eye opening….hotspots are rarely exactly where you expect them. The whole electrical acts to a lesser or greater degree as an antenna picking up and re-transmitting RF radiation from nearby sources….cell towers, radar etc. and any other internal sources you may have in your home, DECT phones, WiFi etc….this is one explanation….

  • Melinda Hood said,

    Hi Lloyd,
    Can you use this meter to measure the electrical charge of the earth…i.e. to see if there is stray electricity moving through the earth underneath you – like when you are out camping.
    Thanks,
    Melinda

  • Lloyd Burrell said,

    The ED78S only measures RF radiation Melinda…..you need a body voltage meter or even a basic multimeter to measure your body voltage which will also indicate the stray voltage you are being subjected to.

  • Jean said,

    @Dave and Lloyd- I would like to know the answer to this also. I do have a smart digital electric meter, but it is of the “wired” variety -which supposedly is not transmitting wirelessly. The “smart” communication is done from the electricity itself through power line communication -PLC – which utilizes an RF pulse injected into to the power signal.

    I have a very sensitive RF analyzer – HF 35C- which does not pick up RF pulses coming from the electric smart meter (and this device is frequently used to measure different utility meters which are wireless) However, when I place the Coronet78S up to the meter it picks up very high RF reads. This doesn’t make sense and I wish someone will find an answer to this conflicting information.

  • Lloyd Burrell said,

    Some smart meter signals are extremely rapid which makes them very difficult to detect….this is the best explanation I have for this.

  • Jerome Roberts said,

    Jean,

    The HF 35C measures only up to 2.5 GHz whilst the Cornet 78S will measure all the way to 8 GHz. There is a lot Wi-Fi is the 4.8/5GHz range. However, most SmartMeters run on the consumer side at 2.4 GHz and up to 1 GHz on the utility side. But, perhaps this meter is an exception. I would trust the Cornet reading because of its greater range.

    Jerome

  • DaveA said,

    Hi Lloyd,

    I’m learning more about my meter-related issues as time goes on…

    My Ampy 5184A electric meter emits RF pulses (i.e. wireless radiation) about every second, which the ED78S measures at up to 1 V/m or so. This happens continuously throughout the day and night, and I think is described as “Automatic Meter Reading” technology – which seems to be the forerunner of “smart” meters.

    I’ve spent hours (literally) on the phone to my energy provider, trying to explain this, and the fact that the constant RF emissions seem to be perpetuating and aggravating my electro-sensitivity.

    Apparently, I’m the first customer they’ve ever spoken to who has this condition, and to say they’re perplexed would be an understatement.

    (I think that with the rollout of smart meters about to start in the UK, I won’t be the last electro-sensitive person to contact them though).

    They’re supposed to be fitting a different meter today to resolve the issue, although re. Jean’s comment, I wouldn’t be surprised if the new meter tries to send RF pulses via power lines rather than wirelessly, and don’t know if this would be better or worse than what I have now.

    I’m sure that the energy company won’t willingly relinquish the ability to automatically (and remotely) monitor my energy consumption…

  • Melinda Hood said,

    Hi Lloyd,
    Thank you for your response regarding measuring the ground when camping.
    I am trying to get myself set up with basic measurement equipment for home and camping/earth voltage measurement.
    Sounds like the Cornet ED78S is good for RF and magnetic fields.
    What do you recommend in terms of body voltage meters or basic multimeters?

    Thanks,
    Melinda

  • Lloyd Burrell said,

    A body voltage meter will be more accurate Melinda but a basic multimeter can do nearly as good a job. My Amazon store page lists a model you can buy for around $20, see http://www.electricsense.com/emf-protection-store/

  • Carolyn said,

    The battery that came with my ED78S meter only lasted for 1 day, using it only a few hours. Is that normal? If so then it could get VERY expensive using the ED78S meter. I think the low battery was what caused the 1827 reading on the meter which was frozen on the screen and required powering off and back on. With a new battery I’ll see if that is the case.

  • Carolyn said,

    You recommended using V/M readings instead of mW/m2. In your review of the Cornet ED78S, you said “But to be fair you can go into the menu and change it to V/M”. You didn’t mention that the meter won’t hold the changed setting. Each time you power ON you must go into settings and change to V/M. Do you know of an automated conversion web site that will convert mW/m2 to V/M so that I don’t have to change the settings each time I turn the unit on? Thanks.

  • Carolyn said,

    It would be very helpful to know what readings are in your house now…around your computer, printer, cell phone, corded phone, AC plugs, microwave, and anything else in your house, etc. At least I would know what is safe for you and give me something to refer to. Thanks.

  • Lloyd Burrell said,

    This website has a RF converter on it http://www.powerwatch.org.uk/science/unitconversion.asp….note: conversions like this have their limitations. The battery that was in your meter when it was delivered was probably already low….a battery will normally last several months.

  • Jean said,

    Hi Lloyd,
    Will the Tenma digit multimeter that you have for sale in your EMF store measure AC body voltage down to 0.004 V ? Does one measure their body voltage with this meter by grabbing on to one end of a test lead – and is a second test lead needed for this measurement?

  • Lloyd Burrell said,

    The Amprobe 5XP-A multimeter would be a better buy Jean….it can measure in millivolts and is more accurate. Put the black probe to earth (electrical socket or other), hold the red probe between your fingers to determine your AC body voltage (when on AC setting) and DC body voltage (on DC setting).

  • Melinda Hood said,

    Thank you Lloyd.

  • Jean said,

    @DaveA,
    I have complained to my electric company for two years about this wired PLC digital smart meter since I developed ES symptoms soon after installation which includes non-stop ringing in the ears. They tell me I am the only one with the problem and that it’s not being caused by their meter or PLC (power line communication). However, I’ve come to know various local individuals with the same PLC meter who have also developed health problems since installation,and guess what the utility tells them when they call to complain? They say it’s the first time they’ve ever heard of such a thing! A couple of us have submitted letters from our doctors asking for a return of an analog meter because of our associated symptoms, and the utility still says that they absolutely will not do it. It is my understanding though, that if they are using PLC- power line communication- just changing out the meter may not be enough to help a suffering person because much of the problem is coming from the PLC technology where the RF is injected into the power signal and then travels into home wiring and radiates out from the walls wherever the wiring travels in the home.

  • JJ said,

    Hello:Can I use this as a RF leakage meter for a Cable system I run? Will it display a RF specific frequency that it picks up or does it just show the power levels? I would like to see if there are any specific channel leakage.
    Thanks
    JJ

  • Lloyd Burrell said,

    This meter doesn’t show frequency JJ…..you’d need a meter with a spectrum analyzer function on it to do that.

  • Kaiser said,

    Hi Lloyd, I have a Cornet ED78s but I have a doubt related to the values showed on the screen, Question: These values reported are the final values or I must to do a multiplication by 100, for example when it display 0.45 V/m = I’m confuse if it is the really 0.45 or I must read it as 45 V/m ?
    In my office the only wireless appliance is a Cordless Panasonic phone (DECT technology) but my RF meter reports 0.461 V/m, so I would like to confirm if it is a well approval value considering the BIOINITIATIVE 2012 suggest the levels recommended is <= 0.614 V/m.

    I appreciate your answer and comments about my doubt to understand the way as this RF Meter works, because I am not sure if the value reports are final or not.

    Thanks a lot.

  • Lloyd Burrell said,

    If your Cornet shows 0.45 then providing its on the V/m setting no calculation is needed…. this means 0.45 V/m.
    Your readings sound plausible….the reading is a reflection of the RF radiation generated by all RF generating devices in the vicinity (cell towers, neighbors WiFi, military installations, etc.)…this is higher than BioInitiative 2012 precautionary level, see http://www.electricsense.com/4766/bioinitiative-report-2012-emf-dangers-health/

  • Rob said,

    Hi Lloyd,

    Can you clarify how the sound feature works on this meter. It’s not totally clear from the video. I have a Gigahertz HF35C meter. When on, the sound feature continually outputs what the meter is picking up. I know that WiFi makes a continuous pulse sound. In your video, when you turned the WiFi on, there was a small amount of sound, but then the sound stopped. What I’m wondering is whether the sound function behaves just like the HF35C, or whether it makes one sound only when a certain RF level is picked up. To be more precise, can the sound function be used to identify what the RF is coming from (DECT sounds different than WiFi, sounds different than bluetooth, sounds different than a cell tower, etc.).

    Thank you

  • Lloyd Burrell said,

    I’ve never taken the time to analyze the different sounds emitted by the ED78S but I’m sure with practice you would be able to identify the nature of the RF signal (WiFi, cell tower, DECT etc).

  • María del mar Rosa said,

    Hi Lloyd,
    After reading the posts and the comments, I think I am almost determined to get the ED78S.

    I am electrosensitive. When I measured radiation at home, it was up to 4.780mW/m2. Now I have moved to a small village but, if I go to the city, even just a couple of hours, I notice the effect of lampbulbs and also tv and pc screens.
    My question is a bit silly. I still don’t have clear if with this ED78S I can measure these levels (screens and lampbulbs) or if, for that, what I need the trifield meter.

    However, what I am most interested in is in measuring the RF levels because that is what really affects me more.

    Thanks a lot and congratulations for such an excellent work. Your page is of great help.

    María

  • Carolyn said,

    I have the same question as Rob about the different sounds of the ED78S. You said “I’ve never taken the time to analyze the different sounds emitted by the ED78S but I’m sure with practice you would be able to identify the nature of the RF signal (WiFi, cell tower, DECT etc).”

    Since I hear “static” all the time when the meter is on, I can’t really tell when the static is bad or good. Could you possibly do a video identifying the sounds that are “normal” and the ones that show EMF/RF activity? Thanks for all of your excellent research on this subject…which is very new to me.

  • Patty said,

    In its defense the ED85EX still has a slightly broader range than the ED78S (1MHz to 8GHz, compared to 100MHz to 8GHz for the ED78S) – See more at: http://www.electricsense.com/5405/cornet-ed78s-emf-meter-my-review/#sthash.cbFxVNhS.dpuf

    Hi: THX very much for so much info. But I need to know what would fall between 1Mhz to 100Mhz to make ED78s less desirable than ED85EX

  • Lloyd Burrell said,

    The frequency bands that are attributed to different types of devices vary around the world….but TV and radio, mainly analog fall into this frequency range also possibly some digital TV & radio transmissions and possibly military transmissions.

  • Franck said,

    Hi Lloyd,

    I’m trying to understand, if this device (ED78S) can check both RF and EMF, what is the advantage of buying a device qhich can check only EMF (like the Trifield 100XE for example?)
    Thanks

  • Lloyd Burrell said,

    The ED78S measures RF radiation and magnetic fields. The Trifield 100 XE also measures electric fields but the RF radiation measurement capabilities are quite limited…..the ED78S is better choice if you want to measure WiFi, cell tower, cordless phone radiation etc.

  • Franck said,

    Thanks for the answer..
    but i still dont understand what the advantage of buying a device which measures only electric fields like the 100 XE? why should someone buy it instead of buying a device which can measures both?
    for me, I want to measure both electric/magnetic fields and also RF radiation (wifi etc..)
    So i guess the ED78S is the one for me?

  • Lloyd Burrell said,

    The ED78S does not measure electric fields…the 100XE does measure 3 types of EMF but as I said RF sensitivity is limited.

  • Franck said,

    maybe i can do it more simple.. here what i have in my home and i ewould like to test:
    in child room, there is a PC with screen, printer, 2 routers, dect phone,
    in the rest of the house microwave, fridge, freezer, oven, TV, DVD..
    and of course i want to be able to check WIFI, and cellular in the house (coming from inside and outside)

    what meter do u think will be better for me? the ED78?

  • Janet said,

    Hi Lloyd
    Many thanks for this helpful iinformation. I am thinking for people like myself with little knowledge about electrical instruments. Is it better to assume that if I have most common gadgets at home I should just protect myself with a good shield rather than spending money on electrosmog meters. It seems clear that most electrical gadgets emit this harmful radiaitons anyway.
    Another question is. Could this sensitivity lead to my body downloading music from one gadget onto another.No cloud system. Quite weird. Thanks Lloyd

  • Lloyd Burrell said,

    Janet, ‘assuming’ your exposure levels is a recipe for disaster….buying a shield and assuming it reduces your exposure is also dangerous…in some cases EMF shielding can make matters worse…..but an EMF meter can tell you what your exposure levels are and if any EMF mitigation you apply reduces your exposure.

  • Lioness said,

    Hello Lloyd, I’m learning a lot from your book and the web site. Since I use my notebook on my lap while sitting in my recliner 6-8 hours everyday, I had to do something for protection. I have hard-wired it by ethernet. But the big thing I did was to put my laptop cooling pad (not connected electrically though) INSIDE a very large mylar bag used to store dehydrated food. I sealed it using my vacuum sealer (can’t vacuum-just seal). Then wrapped the excess and duct-taped it down. With my ED78 I tested the notebook without the wrapped cooling pad and WITH it. The readings came down quite a lot. Not totally, but enough to be of benefit. I think I will wrap the cooling pad in one more Mylar bag and seal, etc. I’m even thinking of some way to construct a removable “tent” made of this thick mylar to put over my microwave when I want to use it. The readings are in the red zone even when I get out of the kitchen and into the next room. Do you or anyone else have suggestions how to make such a “tent”. I can’t afford expensive options. The meter and your book were about all I could invest. Thanks for all you do Lloyd.

  • Lloyd Burrell said,

    I can’t make any suggestions on how to make a mylar enclosure for your microwave….its not something I’ve ever attempted…..one thing to bear in mind: microwave ovens are fitted with cooling fans….making an enclosure with Mylar could cause the oven to overheat and be dangerous…..

  • Fausto said,

    Hi Lloyd,

    I bought Cornet ED78S meter and I discovered two main sources of electrosmog in my house: My iPhone and my WiFi router. Surprisingly, if I disabled WiFi in router settings it still remains emitting the same level of radiation. I can’t just change the router because it is provided by my ISP. I discovered too radiation coming from my neighbour. Fortunately my bedrooms, bathrooms and chicken are EMF free. I recommend you people to buy this meter because you can know exactly where radiation is coming from.

  • Claudia LaBorde said,

    I am having unexplained neuropathy so very important I evaluate everything. I have lots of computers, wi fi, and electrical equipment home and work. Should I get the Cornet ED78S EMF or the trifield or both . Or do you suggest a better combo that I could test most everything with ?

  • Lloyd Burrell said,

    If you want to evaluate ‘everything’ you will need more than one EMF meter but just take it one step at a time…..most people start by measuring RF radiation (WiFi, cordless phones, WiFi etc)…..the Acoustimeter or Acousticom 2 are excellent choices for measuring RF radiation….a cheaper solution is the Cornet ED78S which also measures magnetic fields….I suggest you read my reviews before buying these meters and download my Free Report.

  • Veronica said,

    Hi Lloyd,

    I read your site and I would need your help.
    I have no idea which meter to buy, and am I able to buy it from your website?

    I have new roommates on the other side of my bedroom and since they moved in I have chest pain come and go, the whole room feels different now.
    I like to find out if There is dangerous reading coming from my new roommates.

    Please help!

    Thank you and really appreciate it.
    Veronica

  • Lloyd Burrell said,

    Veronica,
    The issue may be RF radiation (from cell phones, WiFi etc) from your roommates….I’m guessing….the meter shown on this page is suitable for measuring RF radiation…..but before you go out and buy an EMF meter I suggest you gain a basic understanding of the issue & the different types of EMFs…..you should find my Free report and newsletters helpful in this also…..then make your choice.

  • June Wood said,

    Hi Lloyd, I have a Triefield Meter and my present home is generally clear of EMF’s.I have a stainless steel screw in my Tibia and 4 root canals. The Previous home I lived in 15 years ago made me and my Family very EMF sensitive in different ways. Because I could sense “electricity” in my body any time an appliance was turned on in any room in the house – I had someone come in and test it for EMF’s. Surprise! His equipment could only measure up to 100 milligaus and the house showed much more. He suggested we call in the Hydro. they came and discovered 150mgs on my bed and very high readings throughout our home. It turned out that our home had no Neutral connected at the Distribution line right outside our home! they fixed the problem – but my daughter and I still suffer from extreme emf problems. It affects my legs – I can sense these awful electric sensations running down all the time. As you have pointed out – none of the gizmos that are supped to help – just don’t. I recently had someone come round and check my outlets for Dirty Electricity. I had $1000 worth of Graham Stetzers installed. Don’t feel any difference, I am now in my Senior years and wonder if I will ever be normal, my immune system is compromised – I have lung bacteria that 3 years of daily antibiotics won’t cure and my mouth and feet ‘burn’ on and off. I put all this down to overexposure in my previous home. Any suggestions that might help me live a few more years without this suffering? I still have a bright mind thankfully. any suggestions would be most helpful. thank you, June, Toronto Canada (no cell phones or WiFi, but next door has Industrial strength WiFi!).

  • kim stewart said,

    June, yes, there is an answer ..earth your body…with a sheet, bracelet. earthing or grounding by Ober–google this.
    get the book Earthing by clint ober. On abebooks or amazon for under $10.

    many persons’severe pain/ stiffness/fatigue is eliminated by grounding their body to earth.

  • Arul said,

    Hi,
    Greetings. Thanks for your info and contributions to this field. My query is, how to do I get the readings calculated in dB (like safer range etc -35dB). Could you educate please?

  • Lloyd Burrell said,

    Use the mode button to select the dBm setting. If you are interested in measuring EMFS for health the dBm measurement unit is not suitable….use V/m.

  • Roadie said,

    I have a question about the histogram and the level bar on the bottom. Do you know what’s the scale and unit of the histogram and the level bar? Without the units and the scale, the histogram doesn’t seem to provide much useful information?
    Thanks.

  • Mona said,

    Hello! Thanks for your amazing information and time answering questions. The head of our household who is very old, cannot see well, and has a language barrier, unfortunately signed a waiver without realizing what he had signed to accept having a smart meter installed in our primary residence. We received notice that they will be installing it. Unfortunately, the rest of the household was away on extended holiday and business for months and came back to realize this. The electrical company in Vancouver, BC Canada refuses to cancel the installation and will not agree to have someone higher up speak with us and has made threats of charges for failed installation. The installation of the smart meter is about 1 week away. Running out of ideas…? Help! We have our analog meter and want to keep it even with a cost of $35 a month and additional costs.

  • Mona said,

    PS: Fausto, the writer above stated that he had emissions coming off his router even when WIFI turned off. I have the same situation although I don’t know what if or how much emissions. Can a person place 100 gram (strongest) ALUMINUM tin foil on or around the router and under the desk where laptop is placed to reduced emissions???

  • Lloyd Burrell said,

    Aluminum foil can be used to shield WiFi radiation……depending on the thickness of the foil and how you use it…..be careful about covering the router directly doing this could create a fire hazard.

  • Lloyd Burrell said,

    There is no easy way of dealing with this…..but I have written at length about smart meters and possible shielding solutions, see http://www.electricsense.com/category/smart-meters/

  • Jean said,

    Just wanted to remind people who have turned the Wifi off on their routers to make sure that you have also turned off the wireless on your computer’s internet connection setting. I had once turned the wifi connection off in my router setup but had forgotten about the computer’s internet connection setup. My laptop continued to put out a 2.5 gigahertz blast at least once a minute even though I was online with a “wired” router setting.

  • Fausto said,

    Apple Time Capsule, using dual band 2.4Ghz and 5Ghz, emits very high levels of EMF. Much more than a normal 2.4Ghz router. I measured with Cornet ED78S meter.

  • Carolyn said,

    Hello Lloyd, Your excellent website, free downloads and eBook have been very helpful as I try to learn about EMFs. I used my EDS78S meter on my sister’s home recently. I still have difficulty interpreting what I’m seeing.

    1. The smart meter outside her home registered ~.08-1.0 v/m with no spikes. This was at 1:30am. I expected the readings to be higher (like mine). She has a tower as close to her home as mine. Why the lower readings?

    2. The readings on the telephone box (next to the smart meter box) were much higher…~1.0-3.8 v/m. Does the telephone box pose a problem?

    3. In her home, the readings from the modem/router are ~.08-2.0 v/m. To even hard wire her computer won’t eliminate the radio waves being emitting from the equipment. Changing out the equipment isn’t really an option (long story). Is there any alternative other than unplugging the equipment except when in use? What about a DIY heavy foil “box” that could be placed over the equipment (with opening in the back for air circulation)?

    4. Am I using the right measure: v/m?

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