The meters on the page are divided into 2 groups. The first is for old meter that we don’t sell any more. The second group is for meters that we think are not good enough and we don’t recommend getting.
The MagneMeter ELF Detector
The MagneMeter ELF Detector is a very simple to operate and very nicely build , very light and very small, ELF magnetic field detector, manufactured and sold by EMFields.com. This very basic ELF detector is idle for people who don’t want to mess with reading fast changing numbers or for presentation and videos, as the reading is very clear. It comes with a carry pouch, a short user manual and a 9V battery.
Advantages:
- Very light
- Very simple to operate
- Available in uT or mG versions
- Very sensitive (as law as 0.02 uT or 0.2mG).
Disadvantages:
- No numeric display.
- Single Axis.
Bottom line:
Very nice, small, light ELF detector for the novice user.
Where to buy:
Gigahertz Solutions RF meters
In 2015 I have decided to add some of Gigahertz Solution RF meters since they have become very popular in USA, Canada and EU. These meters are very accurate, very sensitive, very fast and very “German”(made in Germany). Their operation is not so simple as you need to use switches, Attenuators, external antennas and etz, but they allow a lot of flexibility in the measurement. To this day I have not used them my self but you can experience the operation of the meter from the video above.
Advantages:
- Quality
- Advance and flexible meters
- Audio feedback
- Very sensitive
- Very fast
Disadvantages:
- Very low dynamic range. Measure between 0.001mW/m2 to 1.999mW/m2. Not very useful for everyday life. To measure levels higher than 2mW/m2 you need to connect an additional filter that makes the operation of this meter even more complexed.
- A bit expensive
- Operation is complicated
- Very simple display (in comparison to the CORNET ED78)
- Limited frequency range, usually not more than 3GHz
Bottom line:
Good meters to those of you who know their way around RF measurements and needs the flexibility and the accuracy that these meters allow. The frequency span is limited, the usage is not easy.
Where to buy:
Use the links in the below table. Sold be a web store in England. Prices are in British Pound, not including VAT. You may need to pay taxes on supply.
| Model | Few words on this model | Picture |
| https://amzn.to/32YxjsG HF32D- Best Low-cost Digital Microwave Analyser for 800-2700MHz | Personal meterEntry modelLow price800MHz-2700MHzAttenuator is recommended2 year WarrantyPrice: £133.00 excl. VAT (non-EU customers) | |
| https://amzn.to/2otey1v HFE35C– HF/Microwave Monitor 27MHz 2700/3300MHz | Professional meter27MHz-2700/3300MHz comes with 2 external antennas. One for directional measurement above 800MHz and one for below 800MHzAttenuator is recommendedPrice: £499.00 excl. VAT (non-EU customers) | |
| HFW35C – WLAN,Wi-Max,Wi-Fi Broadband Microwave Analyzer 2.4-6GHz | Only for RF HF 2.4GHz-6GHzPrice: £275.00 excl. VAT (non-EU customers) |
TENMARS 192D – Triaxial Magnetic Field Meter EMF/ELF meter
Important notice – In the past, I have found some accuracy issues with this meter. The meter tends to show higher levels compared to other meters when measuring ELF levels next to a small source. Test I did showed that this meter measures the right levels (as other meters) when in a large ELF magnetic field, like those created by high voltage power lines. I think this meter would be good for finding ELF sources and for background level measurements in large fields. If you need to measure ELF magnetic fields from small sources this meter may not be your best selection.
This Extreme low-frequency meter measures ELF magnetic fields around 50 Hz (from 30 to 2000 HZ). This meter is equipped with big, clear and easy to read (date and time are not easy to read) LCD display, it can measure all 3 axis, it measure ELF EMR in mG and uT unit (configurable), and it can measure up to 1000 (!!!) mG (very nice!). The TENMARS 192D has several more advanced features such as the HOLD, HOLD MAX, HOLD MIN features, data logger memory (up to 500 measurements can be stored on the normal model and up to 9999 on the 192D model). It has an internal clock and date, auto power off feature, low battery indication. In the TENMARS192D you will also find a USB PC connection that will allow you to extract data from the meter.
This advanced meter is very easy to operate has many nice advanced features. However, when compared to other meters it showed different values. The numeric display is very easy to read but I feel that it is not as easy to use for source tracking and finding as for the analog display that exists in other meters.
Operational manual is available at: : http://akizukidenshi.com/download/TM-192D.pdf
Advantages:
- Big clear numeric LCD display.
- Many advanced functions.
- Goes up to 1000 mG!
- 3 Axis.
- Easy operation and configuration.
- Comes with a nice handbag.
Disadvantages:
- Low LCD refresh rate
- May not be so accurate in some cases.
Bottom line:
Not for Home use. Not accurate at week fields
If it would have has a better LCD refresh rate, and if it would be more accurate, it would be perfect! If you need a simple to use digital ELF EMR meter the TENMARS 192D is your best choice, but until the accuracy issues will be fully resolved I can’t 100% recommend this meter. It is nice; it’s big and seems to be a “professional” meter, but I rather use other meters.
I think this meter would be good for finding ELF sources and for background level measurements in large fields. If you need to measure ELF magnetic fields from small sources this meter may not be your best selection.
Tenmars-TM-196 
Tenmars-TM-195 
Tenmars-TM-190
In the last few years, I have tested few TENMARS RF meters, 1 axis and 3 axis models (TM195, TM196, TM190).
All suffered from the same issues:
- Not easy to use
- The sampling rate is too slow – meter could not identify fast changing signals (WIFI, DECT).
- TM195 and the TM196 – LCD not informative (The TM-190 is much better)
- TM195 and the TM196 – The meter changes between units’ (from V/m to mV/m to uV/m , from uW/cm2 to nW/cm2, from mW/m2 to uW/m2) all the time which makes it hard to follow
- TM195 and the TM196 – They don’t last for long – the sensor usually breaks after a while
- Very disappointing (seems like a very good package but it is not). On paper (feature list) seems like a great deal but it was a very big disappointment for me.
As in photography, a good RF professional tester would manage to get good outcomes from every meter. The problem is that I don’t think that home level user will know how to handle this meter and to compensate for its problems and issues. But the slaw sampling rate (one per 0.4 seconds) which make these meters slow for most modern home use RF sources like WIFI, DECT, BLUETOOTH, Cellphones and other.
I hope that in the future TENMARS will improve this very basic feature so the measurement will be based on at least 1000 samples and will show MAX value.
DT-1130 Electromagnetic radiation detector
It took me a while to understand what this detector does(an I am still not sure). I used it several times without understanding what exactly this device detects. Sometimes when you move it, it shows reading and beeps (maybe DC magnetic field?), sometimes when closed to an electrical wire it beeps and shows a reading (maybe an AC electric field?), I am still not sure. The manual gives no new info or a hint, it says “Electromagnetic radiation” all the time, without noting which type of EMF is it.
In the pictures Below you can see a measurement next to a led strip that should have created an electric field (DC/ELF) next to it. In the first picture the meter shows no levels, in the next picture, where the meter is just a few millimeters away from the previous spot, it does show some reading. According to the measurement of other meters, the EField should have been detected also on the first spot.
Close to the source = 0 result 
A bit closer to the source = Very high numbers
Advantages:
- Low Price
Disadvantages:
- I am still not sure what it detects. my best guess it is ELF electric field.
- Sometimes shows a reading when moved.
- Shows what could be ELF Electric Field reading (units unknown) only when very close to a device.
Bottom line:
I can’t recommend this device.
Electromagnetic Radiation Tester
I am not sure about the full name or the model number of this device. I have seen it under different names and brands over the Internet. Mine says only “Electromagnetic Radiation Tester”, and the user manual says “Version: 3120-EN-00”. The device itself is very nice for a very low price. But in my testing, it proved not to be accurate enough to be regarded as “a meter”. I think it is a nice ELF Electric and Magnetic fields detector. Not for RF. As in other cheap devices, it reacts to the radiation only when being very close to the source. However, it can still be used to scan a wall or a room (you need to be very close to the source, and even if you are it seems that the measurement is not accurate).The manual say it can go up to 3500MHz, well I could not see how it can. I put it next to a working DECT phone, it did show a high level of Electric field, but the same level was seen when the DECT phone was out of the power socket( I am not sure what it measured in this test). So I am not sure, but is was not as responsive as I would expect it to be. In addition, the manual says it’s E-fields sensitivity is as low as 1V/m. This could be fine for ELF but not sensitive enough for RF.
In the pictures above, from the right to the left, 0(none) then mid(10V/m) then high(344V/m) readouts of electric field just few cm. a way from the source.
In the pictures above, right picture, no ELF magnetic field is detected from an audio amplifier. In the middle positioned picture, 3.21uT magnetic field just 5 cm from where the meter was in the right picture. In the left picture, the UHS2 shows a level of 10mG (1uT) farther away from the amplifier.
Advantages:
- Low Price
- Lots of features (Hold, Average, Peak value, backlight, alarm).
Disadvantages:
- Not accurate enough to be called a meter.
- Reads high levels only when next to the source, 10 cm away and the readout is 0.
- Does not seems to pick up RF radiation (the manual suggest that it can go up to 3500MHz).
Bottom line:
I think it may be used only as a cheap ELF Electric and magnetic fields detector, if you can’t afford a more accurate reliable meter.
OLD METERS – – Discontinued
CORNET ED-6/ CORNET ED-7 (Old meter – Sold Out) – Discontinued
The CORNET ED-6 is a small and very simple to operate EMR meter suitable for frequencies between 300 and 3000 MHz (3 Ghz). It has an internal antenna, it is very sensitive (according to the manufacturer it can measure from 1.6 uW/m2 up to 180mW/m2) and has a led light color bar display with 9 leds, in 3 colors (green, yellow, red). The color bar is divided into 3 colors in a satisfying way, and I tend to look at it in the following way:
- Green – OK for long exposure.
- Yellow – OK for short exposure, not for long.
- Red – high levels of EMR, stay away if possible.
On the right side of the CORNET ED-6 there is a small On-Off switch.
The CORNET ED-6 is best to be used as a basic meter that can reveal the levels of EMR (none, a lot, some EMR) , for searching and exposing EMR sources and for monitoring your environment for several hours. A similar modal with addition of voice indication is also available.
The CORNET ED-6 uses a 9V battery which will last for more than 8 hours (tested by me). It is recommended to use rechargeable batteries in order to save single use batteries.
2 screws, in the back of the CORNET ED-6 will allow you to open the device and to change the batteries.
I connected to the battery connection to the power output of a 9V power transformer, and I use this meter as a 24X7 EMR level monitor.
Advantages:
- Battery lifetime of up to 8 hours.
- Small, light and easy to operate.
- Mobile (you can take it any place you like).
- It seems like a Strong device.
Disadvantages:
- Gives only an estimation of the EMR level and no numeric reading.
Bottom line:
I recommend the CORNET ED-6 meter as a first, simple, small and mobile meter, for beginners and for people who do not want to deal with complected numeric info, just a basic EMR level meter. It is recommended to purchase together with a similar LFE meter.
CORNET ED-25G (Old meter, replaced by CORNET ED78) – Discontinued
The CORNET ED-25G is a EMR meter for both RF (radio- high frequencies) and LFE (low frequencies) , with a Digital numeric LCD that displays diverse types of information in addition to a color led light EMR level bar. It can measure RF in frequencies between 0.1 and 3 GHz (100-3000MHz), and LFE between 50 Hz to 10000 Hz. In RF it can measure from 0.0018 mW/m2 to 0.58 W/m2, In LFE it can measure from 1 mGauss to 600 mGauss (all in only one axis).
The digital LCD displays the following info in RF mode:
- EMR value in W/m2 (big digits).
- EMR value in dBm units (small digits).
- Histogram graph with last 32 measurements (a measurement is done couple of times for each second).
- EMR level bar, both on the lower part of the LCD and on the side of it using the Led color EMR level bar.
The digital LCD displays the following info in LFE mode:
- LFE EMR value in micro Telsa (uT, big digits).
- LFE EMR value in mGauss (small digits).
- Max value (since power up).
- Histogram graph with last 32 measurements (a measurement is done a couple of times for each second).
- EMR level bar on the side of it using the Led color EMR level bar.
A big On-Off button is located under the LCD and above the 2 function buttons in the front of the CORNET ED-25G (gets pressed very easily when the meter is in the bag of not in use).
Pressing the top function button of the CORNET ED-25G (lower than the power up button) will switch between ELF to RF.
The lower operational button of the CORNET ED-25G is used to freeze the display on the last measured value (Hold function). The CORNET ED-25G is equipped with a backlight for the LCD display, which is on for several seconds after power up and can be turned on (for several minutes) by pressing the upper operational button while in HOLD mode. The LCD back light makes it possible to use the CORNET ED-25G at night and in poor light conditions.
The CORNET ED-25G has an internal antenna. It uses a 9V battery (easy access from the back of the CORNET ED-25G). The battery kept the meter working for more than one hour with the backlight on. I recommend having a spare battery or even several rechargeable batteries if you use the CORNET ED-25G more than once in a while.
Advantages:
- LFE and RF in the same meter.
- A lot of info on the LCD.
- LCD Backlight.
- Histogram graph.
- Max value on LFE.
Disadvantages:
- One axis only
- Short battery life
- At first some people can find it hard to follow all the info on the LCD.
- Not very sensitive in LFE (displays the right values but only when very close to the source).
- ON-OFF button is easily pushed when inside the bag.
Bottom line:
The CORNET ED-25G is recommended if you are looking for a dual ELF and RF meter , for home use, and if you are not afraid from a lot of data being presented on the same small LCD at the same time.
Where to buy:
| This is an old meter and it is not sold anymore Please also see the more advanced CORNET ED88TPLUS | |
CORNET ED88T – Discontinued
This is an old meter and it is not sold anymore
Please also see the more advanced CORNET ED88TPLUSMost recommended, all in one, home use, RF/ELF-M/ELF-E EMF meter (01-2016)!
Description of the CORNET ED88T
All in one, both RF(100MHz-8GHz) and ELF (Magnetic and Electric fields) with improved sampling rate(5000 per half a second), RF Frequency meters (100MHz up to 2.7GHz), adjustable Led bar, adjustable Alarm, and 2 Average mode in RF mode(last 15 seconds and last half a second), Audio Feedback( in RF mode) , max and current measurement functions.
An improvement of the CORNET ED78S (since 01-2016) with:
- ELF Electric field measurement from 10V/m-1000V/m, 50Hz-50KHz
- Faster Sampling rate of 10000/sec, Display rate 2/sec (show max peak value).
- RF Frequency meter of highest signal if between 100MHz-2.7GHz
- Average can be selected to show Avr over the last 0.5 second or of the last 15 seconds.
Advantages and features
- Single Axis RF and ELF meter (most RF sources are in Y axis. ELF sources usually radiate in 2 axis).
- Both for RF and ELF measurement and source detection
- Very sensitive RF(down to 0.0005mW/m2) and ELF(0.005uT/0.05mG) modes
- Very Fast RF meter (most important for an RF meter, 5000 measurements for every half a second and displaying the max level measured in the last half second).
- RF mode from 100MHz up to 8GHz (from 0.0005mW/m2)
- ELF Magnetic mode mode LF600 – from 40 to 10KHz and up to 600mG
- ELF Magnetic mode mode LF30 – from 40 to 1000Kz and up to 10mG (very sensitive ELF mode).
- ELF Electric field mode Efield – from 50Hz to 50000Hz and up to 1000V/m
- RF mode – Audio-sound feedback
- RF mode – Adjustable audio alarm to levels of 0, -5, -10 ,-15, -20, -25, -30, -35 dBm.
- RF Led bat – Adjustable sensitivity
- RF+ELF M + ELF E modes – Display Max measured value since power up
- In RF mode, display Average level over last half a second.or over last 15 seconds.
- RF measurement in dBm, V/m, mW/m2
- Improved sensitivity in ELF, shows levels from 0.1 mG and up (0.5 in the ED75)
- LF600 mode for low frequency from 0.05uT (0.5mG)
- LF30 mode for low frequency from 0.01uT (0.1mG)
- ELF measurement in uT, mG.
- Histogram graph (level/time graph) shows the values measured on the last 15 seconds. Helps you see fast signals and how the radiation levels changes over time. Great for RF/ELF source hunting.
- Improved LCD display
- Back Led light feature.
- Led Light bar that marks the radiation level if you are having a hard time with the numbers).
- 9V battery
- Improvement of the CORNET ED75
- LFE M, ELF E and RF in the same meter
- 90 days money back guaranty
- 1 year warranty
Disadvantages
- One axis only (if you want to track the source this is an advantage).
- Short battery life (about 3 hours with back-light)
- At first some people can find it hard to follow all the info on the LCD (but it also have a led light bar to make it easier at first)..
- ON-OFF button is easily pushed when inside the bag.
Bottom line
The CORNET ED88T is highly recommended as a first meter. You pay a little extra and get much more info.
This is an old meter and it is not sold anymorePlease also see the more advanced CORNET ED88TPLUS
Manufacture’s data sheet
FEATURESOperation mode: Tri-mode of operation(RF mode): High frequency RF Broadband(Gauss mode): Low frequency Magnetic field(Electric Field mode): Low frequency Electric fieldFrequency range & sensitivityRF mode: 100MHz to 8.0GHz-60dBm to +5dBm, 14mv/m-26v/m, 0.5uw/m-sq to 1.8 w/m-sqGauss mode: (1)50Hz to 10KHz (0.1uT to 50uT)/ (1mG to 500mG), (2)50Hz to 1KHz (0.01uT to 1uT)/ (0.1mG to 10mG)Electric field mode: 50Hz – 10KHz (10v/m to 1000v/m)Frequency Display: 100MHz to 2.7GHzSignal :Analog RF(AM/FM) and high speed digital burst, RF, GSM,TDMA,CDMA,PCS,Wi-Fi 2.4GH, 5.8GHz, 3.6GHz WiMAX, 3 – 6GHz Ultra-Wide-band, 3G, 4G and AC smart meter. AC high voltage power line, Transformer, Motor, Appliance EMFDisplay mode: dBm, mW/m2, V/m, uT, mGauss, MHzAnalog RF(AM/FM) and high speed digital burst, RF, GSM,TDMA,CDMA,PCS,Wi-Fi 2.4GH, 5.8GHz, 3.6GHz WiMAX, 3 – 6GHz Ultra-Wide-band, 3G, 4G and AC smart meter. AC high voltage power line, Transformer, Motor, Appliance EMFDisplay mode: dBm, mW/m2, V/m, uT, mGauss, MHzDisplay: Graphics LCD multi-digit power level display, moving Histogram, level bar display, color LED segment.Function: RF power level, LF magnetic field strength,
Electric Field strength, signal frequency, Hold, MAX, Peak Average, Average, Sound output, audio Alarm, custom LED levelFor more info please press here for products’ page on this site or check out our store site – http://www.4ehsbyehs.com/emr-meters/cornet-ed88t
CORNET ED78S – Discontinued
This is an old meter and it is not sold anymore
Please also see the more advanced CORNET ED88TPLUS
Low price recommended, home use, RF/ELF-M meter!
An improvement of CORNET ED75!
All in one, both RF and ELF in the same meter like the ED75 and the ED25 but this time with improved frequency range (up to 8GHz), audio feedback and alarm, Average, max and current measurement.
Press here to read more…
Advantages:
- Single Axis RF and ELF meter (most RF sources are in Y axis. ELF sources usually radiate in 2 axis).
- Both for RF and ELF measurement and source detection
- Very sensitive RF and ELF modes
- Very Fast RF meter (most important for an RF meter, 3500 measurements for every half a second and displaying the max level measured in the last half second).
- RF mode from 100MHz up to 8GHz (from 0.0005mW/m2)
- ELF mode LF600 – from 40 to 10KHz and up to 600mG
- ELF mode LF30 – from 40 to 1000Kz and up to 10mG (very sensitive ELF mode).
- RF mode – Audio-sound feedback
- RF mode – Adjustable audio alarm
- RF+ELF modes – Display Max measured value since power up
- In RF mode, display Average level since turned ON
- RF measurement in dBm, V/m, mW/m2
- Improved sensitivity in ELF, shows levels from 0.1 mG and up (0.5 in the ED75)
- LF600 mode for low frequency from 0.05uT (0.5mG)
- LF30 mode for low frequency from 0.01uT (0.1mG)
- ELF measurement in uT, mG.
- Histogram graph (level/time graph) showes the values measured on the last 15 seconds. Helps you see fast signals and how the radiation levels changes over time. Great for RF/ELF source hunting.
- Improved LCD display
- Back Led light feature.
- Led Light bar that marks the radiation level if you are having a hard time with the numbers).
- 9V battery
- Replacing the CORNET ED75
- LFE and RF in the same meter
Disadvantages:
- One axis only (if you want to track the source this is an advantage).
- Short battery life (about 3 hours with back-light)
- At first some people can find it hard to follow all the info on the LCD (but it also have a led light bar to make it easier at first)..
- ON-OFF button is easily pushed when inside the bag.
Bottom line:
The CORNET ED-78G is highly recommended for first meter. The extended frequency range and the audio feedback makes it even better than the CORNET ED 75 (see below).
Best first meter for both ELF and RF!
Where to buy:
CORNET ED75 – Replaced by ED78 – Discontinued
This is an old meter and it is not sold anymore
Please also see the more advanced CORNET ED88TPLUSThe CORNET ED-75 is a EMR meter for both RF (radio- high frequencies) and LFE (low frequencies) , With a Digital numeric LCD that displays diverse types of information in addition to a color led light EMR level bar. It can measure RF in frequencies between 0.1 and 6 GHz (100-6000MHz), and LFE between 50 Hz to 15000 Hz. In RF mode it can measure from 0.0005 mW/m2 to 0.58 W/m2, In LFE it can measure from 1 mGauss to 600 mGauss (all in only one axis).
Advantages:
- Replacing the CORNET ED25
- LFE and RF in the same meter
- A lot of info on the LCD
- LCD Back light
- Histogram graph
- Max value on RF & LFE
- measure RF from 0.0005 mW/m2
- measure RF in mW/m2 or V/m or dBm units
- Improved ELF measurement
- Improved LCD display
- RF measurement up to 6 GHZ (single axis)
- ELF measurement (single axis)
Disadvantages:
- One axis only
- Short battery life,
- At first some people can find it hard to follow all the info on the LCD.
- ON-OFF button is easily pushed when inside the bag.
Bottom line:
The CORNET ED-75 is highly recommended for first meter. It can detect both ELF and RF sources. The meter is for home use, and if you are not afraid from a lot of data being presented on the same small LCD at the same time.
Where to buy:
| This is an old meter and it is not sold anymore Please also see the more advanced CORNET ED88TPLUS | |
CORNET ED65 (Old meter – replaced by the CORNET ED78) – Discontinued
This is an old meter and it is not sold anymore
Please also see the more advanced CORNET ED88TPLUS
The CORNET ED65 is a single axis RF meter for frequencies between 100 MHZ to 6 GHz. It has a digital LCD display with a lot of information and in addition a color bar led display. The CORNET ED65 can measure from 1 uW/m2 to 0.58 W/m2.
On the CORNET ED65 LCD you can fine the level of the EMR represented in several ways, In large numeric digits the CORNET ED86 can displays both the dBm units the uW/m2 units (user can chose using upper operation button). On the right side of the LCD the CORNET ED65 displays the last 32 measurements values into a histogram shape (couple of measurement are done every second). In addition there is a led color bar next to the right side of the LCD. The histogram gives the operator a very good indication of the EMR levels over the last few seconds and makes the job of finding EMR sources much easier.
The CORNET ED65 is equipped with a back light for the LCD display, which can be turned on by pressing the upper function button while in HOLD mode and which is automatically turned off after 20 seconds. The LCD back light makes it possible to use the CORNET ED65 at night and in poor light conditions. The lower button is used to freeze the display on the last measured value (Hold function).
A big On-Off button is located under the LCD and above the 2 function buttons in the front of the CORNET ED65 (gets pressed very easily when the meter is in the bag or not in use).
The CORNET ED65 has an internal antenna and it uses a 9V battery (easy access from the back of the CORNET ED65). The battery kept the meter working for more than one hour with the back light on. I recommend having a spare battery or even several rechargeable batteries if you use the CORNET ED65 more than once in a while.
Advantages:
- A lot of info on the LCD.
- LCD Back light.
- Histogram graph.
- Display of Max values (only in some models).
- The internal antenna saves place and makes it easier to store and move the meter.
- Cheaper than the ED85 and the ED25.
Disadvantages:
- One axis only
- Short battery life, better to have rechargeable batteries.
- At first some people can find it hard to follow all the info on the LCD.
- ON-OFF button is easily pushed when inside the bag.
Bottom line:
The CORNET ED65 will suit you if you are looking for a RF meter for up to 6 GHz, and if you are not afraid from a lot of data being presented on the same small LCD at the same time. It is cheaper than the ED85 and the ED25.
Where to buy:
CORNET ED85EX RF EMF meter – Discontinued
This is an old meter and it is not sold anymore
New version is faster and includes audio feedback!
The CORNET ED85EXS is a new version (forth generation) of the old ED85. It is a single axis RF meter for frequencies between 1 MHZ to 8 GHz. It has a digital LCD display with a lot of information and in addition, a color bar led display. The CORNET ED85EXS can measure from 0.1827 uW/m2(-65 dBm) and up to 1827 mW/m2.
Bottom line:
The CORNET ED85EX will suit you if you are looking for a RF meter for up to 8 GHz , and if you are not afraid from a lot of data being presented on the same small LCD at the same time. In addition, it will allow you to use external antennas, attenuator, filters and to connect the antenna remotely via the SMA connector (using SMA RF cable) if you are a professional user.
For home use I would prefer the CORNET ED78S
Where to buy:
COM2 –Environmental Microwave Monitor – Discontinued
The COM –Environmental Microwave Monitor is a very simple electric field RF monitor for high frequencies between 50MHz to 3 GHz. It has a 10 color leds light value bar (green, yellow, red) with a V/M unit scale. Pushing the single operation button will give you one minute of measurement which at the end the meter will automatically shut down. While the meter is ON a Blue led light will blink. The meter’s body is very tough and will not break easily. In the 3 years I have it I dropped it several times and it is still OK. The COM meter measures electric field (which is in 90 degrees to the electromagnetic field) strength in V/M units from a low (but not safe) value of 0.7 V/m up to 6.5 V/m. It is possible to convert the units to magnetic field units by the following formula:
The COM –Environmental Microwave Monitor has an internal antenna and uses a 9 V battery that can be easily changed without taking the all device apart, but it is not always easy to close the battery cover. Thanks to the auto turn off feature battery life is very long.
In my humbled opinion the COM’s color bar does not reflect the safe, moderate, high values since even when a single green led is on (lighted), the EMR levels are too high for long exposure.
The COM comes with 2 years guaranty (in England).
Advantages:
- Small and light.
- Automatic shut down after 1 minute operation.
- Very easy to operate and read.
Disadvantages:
- Measure electric field (which is seldom used today).
- Green light is not safe.
- Not very informative.
- Expensive.
Bottom line:
I recommend the COM as a simple EMR meter for demonstration needs (very easy to read display).
Where to buy:
Use the links in the below table. Sold be a web store in England. Prices are in British pound, not including VAT. You may need to pay taxes on supply.
This item is sold by “Sensory perspective”, an internet store from the UK Price: £149.00 excl. VAT (non-EU customers) £178.80 incl. VAT (EU customers) |
ELF Electro Sensor – Discontinued
The ELF Electro Sensor is an Extreme Low Frequencies around the 50 Hz, in a single axis. The ELF Electro Sensor has a led light color bar indication (green, yellow, red). The led indication marks the level of ELF EMR from 1.5 mGauss to 30 mGauss . The ELF Electro Sensor has a single operation button that has to be pressed for several seconds before the meter turns ON and you have to hold this button pressed as long as you want to measure the ELF EMR levels. When the ELF Electro Sensor is ON the led lights will show the levels of ELF EMR (only a single led will light to show the ELF EMR level).
The ELF Electro Sensor can give a basic indication of a lot, mid or low level or ELF EMR and can be used for finding ELF EMR sources in the house. The ELF Electro Sensor is very basic and very easy to operate, the display is very simple and very easy to read but it is not suitable for evaluation of safety distances. When compared to other single axis and 3 axis meters it showed lower ELF EMR levels half a meter from the source.
Can be bought in a bundle with a similar RF meter.
The ELF Electro Sensor uses a 1.5 AAA battery that can be replaced easily via a special cover.
Advantages:
- Small and light.
- Very cheap.
- Easy to operate.
- Able to find and expose ELF EMR sources.
Disadvantages:
- Single axis.
- Not suitable for evaluation of safety distances.
Bottom line:
The ELF Electro Sensor is recommended as a first ELF meter for amateurs, beginners and people who want a basic meter for ELF EMR and want to avoid complicated to read LCD display, for finding and exposing ELF/EMR sources.
CellSensor – by Technology Alternatives Corporation – Discontinued
The CellSensor is a very simple high and low-frequency electromagnetic meter in a single axis . It has a single On-OFF operation button, a On-OFF indication light, analog scale and on the back side there is a small door for access to the 9 V battery.
The CellSensor has a red color cap (red light is on when radiation is sensed) and a voice indication. In the right side of the CellSensor there is a sensitivity selector, which allows you to select between high (X10) or low (X1) sensitivity mode. In the box you will find a sensor probe that needs to be connected to the CellSensor meter in every use.
The best thing about the CellSensor meter is the user manual that comes with it and that other than operational instructions it also has a lot of information and explanation about electromagnetic radiation of different types, possible sources, the right way of measuring it and also a lot of reference to other information available over the internet and in books.
In high frequency, it can measure from 0.1 uW/cm2 to 10 uW/cm2 (high levels), and in the low frequency, it can measure between 1 and 50 mG.
After using it for several days, I can say that it can be used for exposing radiation sources but not more than that. If you put it next to a power converter it will measure high levels, it will beep and light on the red light, but if you move it a way several centimeters it will measure 0 and will displaying any indication of EMR ( will stop the protest 🙂 )
The CellSensor meter uses a 9 V battery that can be changed without taking the device apart, using a special cover.
Advantages:
- Measure both low and high frequencies
- Very simple and easy to use.
- Good user manual.
Disadvantages:
- Limited sensitivity in high frequency (from 0.1 uW/cm2).
- Single axis.
- The probe must be connected when in use.
Bottom line:
Only for the detection of electromagnetic radiation sources.For those who want a very simple EMF detector for both LFE and RF in less than $50.
Where to buy:
The TRIFIELD 100XE METER – Discontinued
Please note, in some of the pictures and video in this site appears a more advanced model of this meter.
This is an old meter and it is not sold anymore
Please also see the more advanced TRI FIELD 2
Highly recommended as a ELF meter (magnetic fields from electric power line, electric devices, power converters)!
Bottom line:
One of the best low-frequency EMF meters for home use.
Where to Buy:
FLAT BAND – Press here to order the TRI-FIELD 100XE METER from “Rad Meters” (recommended store)…This is an old meter and it is not sold anymore Please also see the more advanced TRI FIELD 2 |
MICROALERT 2 – RADIO/MICROWAVE ALARM
MICROALERT 2 – RADIO/MICROWAVE ALARM 
MICROALERT 2 – RADIO/MICROWAVE ALARM 
MICROALERT 2 – RADIO/MICROWAVE ALARM
This is an Old meter and we recommend the more flexible ENV RD10 RF/ELF meter over it.
This tiny EMR Meter is more of an EMR alarm device that will notify you whenever it detects EMR levels around it. The MICROALERT 2 has no numeric or light indication, it simply beeps when it is exposed to EMR. If the EMR levels are low it will beep slowly, if they are high it will beep very fast (similar to a Geiger Counter). The meter is so small it can fit into your shirt pocket (and leave someplace for your turned off cell phone when).
On the right side of the MICROALERT 2 is a small knob button that controls the sensitivity of the meter. On the upper side, you can find a On-Off switch and a small hole outlet for the small speaker. In order to open up the MICROALERT 2 you need to open the screw on the backside of it. This will reveal a small electronic board and a small battery which, according to the manufacturer, will last for 3 years or normal use. The MICROALERT 2 also comes with a small detachable hook that can be attached to his rear side and can be used to attach it to your belt or shirt, but I don’t believe it can hold.
Advantages:
- Very small.
- Unbreakable.
- Long battery life.
Disadvantages:
- Sound indication only.
Bottom line:
I think MICROALERT 2 is best to be used by EHS persons as an RF EMR alarm system, or as a basic indication meter for searching and exposing EMR sources. I “ware” this meter to work every day and it alerts me whenever someone uses a GSM mobile phone next to me.