Home use EMF / EMR Meters and Detectors

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What can an EMF \ EMR meter allow you to do?

1. Allows you to track and find EMF sources inside your house.
2. Allows you to asses the safety distances from ELF sources (in RF there is no real safety distance).
3. Allows you to identity where from EMF is penetrating your house.
4. Allows you to know which devices emit EMF, when, for how long and how frequent. 
5. Allows you to make sure that steps you take to minimize your exposure relay works.
6. Allows you to make sure that the protection you are installing relay makes a difference.
7. Allows you to lend the meter to family and friends.
8. Allows you to measure the EMF when ever you need or want.


What an EMF \ EMR meter can't do?

As weird as it sounds, most EMF meters, even professional meters and especial RF meters will not be able to show you all the radiation in all the frequencies because of technical limitations such as sampling rate, frequency span, difficulties in measuring multiple source in multiple frequencies all in the same time and more (see below for more info). 



My recommendation, plain and simple

I recommend reading this page fully before buying an EMF/EMR meter. For those of you who want's my recommendation, but don't want to read the full explanation Please see the following table:

 Recommended for Model  Frequency response  Picture and linkBuy now!
 Home use RF/ELF EMF meterCORNET ED78 G/S RF - 100MHz - 8GHz 
  EL30 - 50Hz - 1KHz 
ELF600 - 50Hz -10KHz
CORNET ED78
buy now EMF meter
Only $161.40 (free delivery)

 Home use RF meterCORNET ED85 RF - 1MHz - 8GHz
CORNET ED85
buy now EMF meterOnly $177.50 (free delivery)
 Home use ELF analog meter TRIED FIELD 100XE Flat Band 40Hz-100KHz
 FLAT BAND
TRI FIELD ELF meter
buy now EMF meterOnly $141.50 (free delivery)
 Home use ELF digital meterUHS2 from Alpha Lab 13Hz - 75KHz
UHS2 ELF meter
buy now EMF meterOnly $275.00 (free delivery)


One meter for RF+ELF or a single meter for each?

First Option - First EMF/EMR meters/detectors

First option, as a first meter I recommend the CORNET ED78S as a single meter, that can measure RF up to 8GHz and also ELF magnetic field (both one axis). 

The CORNET ED78s can be ordered from the supplier at this link. If after a while you feel you need a 3 Axis ELF meter then you can add the TRI FIELD 100XE. Most people do just fine with the CORNET ED78.


Second Option - 2 Great EMF/EMR meters/detectors

Second option, for those of you who are whiling to invest more, and get more options and abilities I recommend the CORNET ED85 (or the CORNET ED78 if you want an  internal antenna and the allarm feature) as a RF meter and the TRI FIELD 100EX as an ELF magnetic meter. These meters can be ordered from the supplier at the following links:

    1. The CORNET ED85 
    2. The TRI FIELD 100EX

Want a digital ELF meter?

Recommendation 1 - The Alpha lab UHS2 ELF EMF Digital Meter

Recommendation 2 - The KAISE SK8301 ELF EMF Meter



Preview

Before I will start explaining, reviewing and telling you about different electromagnetic radiation (EMF/EMR) meters, I would like to point out that I am not trying to sell anything. All the meters that I am going to review here were tested by myself, and I own most of them. I am writing here my reviews and comments about these meters , which I use daily. I hope that if you are looking into buying one you will be able to get some information from this page which will help you to understand the types of meters available in the market and to chose the one best for you. 

I believe that every household should have EMF/EMR meters, since in home of today you can find many EMF/EMR sources. An EMF/EMR meter will help you expose most, if not all of them. after exposing the EMF/EMR sources you can start taking some actions to lower your exposure. 


Buying EMF/EMR meters and detectors

EMR is Electromagnetic Radiation, and EMF is Electromagnetic Frequencies so as far as meters it is the same.

I believe that buying your own meters is the right thing to do in most cases, especially if you are an Electromagnetic Hypersensitive (EHS) person. The best thing about having your own meter is that it belongs to you and you can use it more than once. You can use it to find EMF/EMR sources in your house, workplace or outside, just whenever you want or whenever you need. You can use it to track and monitor the changing levels of EMF/EMR during a few days or even help your family and friends by measuring their houses. 

A simple EMR meter can expose real EMF/EMR problems which can then be solved by you (moving or removal of the sources or protection from the EMF/EMR emitted from them). In addition you can take them with you when you are out, buying new equipment for the house in order to make sure when and how much EMF/EMR the new equipment will emit (for example this is the best way to find out which cordless phones emit EMF/EMR all the time and which emit it only during conversation).

I believe that today every house should have one or two meters: one for Extreme Low frequencies (ELF) and one for radio frequencies (RF).

A simple to operate $100 worth of LFE+RF EMR meters should be enough to expose most EMF/EMR sources in your house or workplace and to give you a good picture of what is going on around you as far as EMF/EMR is concerned.

Advanced meters can be right for you if you have some experience in the measuring of electronics, and after you gather some experience and knowledge about radiation.


Where to buy:

If you are looking to buy electromagnetic meters and searching for a place to buy at, I can recommend the our new eStore web store.

In addition to that you are welcome to use the links that I will give in the bottom of every review.
Some of the meters can also be purchased at
 No Rad's Amazon Store.


Different types and levels of EMF/EMR meters

Very Simple EMF/EMR meters – Into this category fall all the indicator type meters. These very simple meters can show you if there is ,or is not any radiation, a lot or not so much, more or less. These meters have a very basic indication, usually a set of led's or a small gauge. 

Amateur EMF/EMR meters – simple EMR meters that in addition to a basic indication gives also a numeric measurement value. 

Advanced EMF/EMR meters - EMF/EMR meters that display different types of information on a specially designed LCD. These meters can usually measure EMF/EMR in 3 axis and have advanced features like HOLD, MAX, AVERAGE. Some of them even have a internal logger (able to track EMF/EMR  levels over time) option and can be connected to a computer for data analysis. 

Professional meters - high quality, advanced meters with high precision and accuracy that address the professional market needs. These meters will usually have many advanced features some programmable options.


Multi frequency and multiple sources measurements

Please note that most of the High-frequency electromagnetic radiation meters that I encountered to date (both professional and simple) are not able to measure multiple frequencies and multiple radiation sources correctly (mobile, WIFI, cellular antennas, cordless phones, etc.). This limitation is due to the difficulty of measuring and summing up all the radiation levels in all the frequencies. Therefore the measurement of radiation sources that emit RF radiation in several frequencies (eg: WIFI, mobile phone antennas mailman third or cellular) or measuring a several radiation sources at once may not be accurate and generally results in low measurements. It is still possible to use these meters to expose radiation sources and to understand 
how to shield and how to reduce your exposure from them.


MICROALERT 2 - RADIO/MICROWAVE ALARM 

MICRO ALERT 2

MICRO ALERT 2

MICRO ALERT 2


  
MICRO ALERT 2 VIDEO

Highly recommended for EHS people!

This tiny EMR Meter is more of an EMR alarm device that will notify you whenever it detect 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 Geigar Counter). The meter is so small it can fit into your shirt pocket (and leave some place for your turned off cell phone when). 

On the right side of the MICROALERT 2 is 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 back side 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 everyday and it alerts me whenever someone uses a GSM mobile phone next to me.

Where to buy:


CORNET ED-6/ CORNET ED-7 (Old meter - Sold Out)


CORNET ED6 VIDEO

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 a way 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 an 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 life time 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)

CORNET ED25

Replaced by the CORNET ED78

CORNET ED25
CORNET ED75 VIDEO

Replaced by the CORNET ED78!

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 back light 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 back light 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 Back light.
  • 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:


 




 
CORNET ED25



CORNET ED78S

  

Highly recommended as a first RF/ELF meter!


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.


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 bellow).

Best first meter for both ELF and RF!





CORNET ED75  - Replaced by ED78


CORNET ED75 VIDEO

Replaced by CORNET ED78!

An improvement of CORNET ED25 !

The 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:

 


 
CORNET ED75



CORNET ED65 (Old meter - replaced by the CORNET ED78)

CORNET ED65

Old meter 
Replaced by the 

CORNET ED65

CORNET ED65 VIDEO


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 ED85
CORNET ED85
CORNET ED85

CORNET ED85 VIDEO

New version is faster and includes an audio feedback!

The CORNET ED85EXS is a new version (forth generation) of the 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.

Press here to read more...

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.


Where to buy:



COM –Environmental Microwave Monitor

COM RF METER
COM RF METER
COM RF METER

COM RF METER

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 bellow 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



 
 


 Acoustimeter AM-10 RF meter

ACOUSTIC METER 10AM

The Acoustimeter AM-10 RF meter is a digital RF meter that can measure between 200MHz up to 8GHz.
The meter comes in a hard plastic hand carry case in which it is covered with a RF blocking cloth that can be used also for demonstration. The Acousticmeter has both a 2 line LCD and 2 sets of color led strength bars and a LCD display in which you can see the Max RF electric field measured (since power up) , the Current electric field strength (both in V/M) and the Average electromagnetic power density flux in uW/m2 units.
The left led raw display the peak RF electric field in V/m units and the right led raw display the average RF power flux in uW/m2 units.
On the left side of the meter you will find the on/off switch, a volume dial and a headphone jack (for audio feedback).
On the back of the meter you will find the audio speaker and the battery compartment (2 AA batteries) .

Advantages:

  • Up to 8GHz
  • Both peak and average (average is done over 1024 samples which are taken over 0.35 seconds).
  • Nice handy, protective case
  • Fast (for fast changing sources).
  • Very sensitive
  • Audio feedback

Disadvantages:

  • Some of the measurements are in V/m and some in uW/m2
  • Big
  • Expensive

Bottom line:

Good for demos and videos.

Where to buy:

Use the links in the bellow 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: £254.75 excl. VAT (non-EU customers) 
           £305.70 incl. VAT (EU customers)
 




Gigahertz Solutions RF meters


GIGAHERTZ RF METER


Recently I have decided to add some of Gigahertz Solution RF meters since they have become very poplar 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:

  • A bit expensive
  • Operation is complected
  • Very simple display (in comparison to the CORNET ED78
  • Limited frequency rang, usually not more than 3GHz

Bottom line:

Good meters to those of you who now their way around RF measurements and needs the flexibility that these meters allow.

Where to buy:

Use the links in the bellow 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

 HF32D

- Best Low-cost Digital Microwave Analyser for 800-2700MHz 
  • Personal meter
  • Entry model
  • Low price
  • 800MHz-2700MHz
  • Attenuator is recommended
  • 2 year Warranty
  • Price: £139.00 
    excl. VAT (non-EU customers) 
      

 

 HFE35C

  • Professional meter
  • 27MHz-2700/3300MHz 
  • comes with 2 external antennas. One for directional measurement above 800MHz and one for bellow 800MHz
  • Attenuator is recommended
  • Price: £499.00 
    excl. VAT (non-EU customers) 


 

  HFW35C

  • Only for RF HF 2.4GHz-6GHz
  • Price: £275.00 
    excl. VAT (non-EU customers)  

 





ELF Electro Sensor

ELF SENSOR
ELF SENSOR

ELF SENSOR

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
 cell sensor on amazon

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 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:

 
Press here to order the CellSensor meter from amazon...
cell sensor on amazon



The TRIFIELD 100XE METER 

TRI FIELD EMF ELF METER
TRI FIELD EMF ELF METER
TRI FIELD EMF ELF METER
Please note, in some of the pictures and video in this site appears a more advance model of this meter.


Highly recommended as a ELF meter (magnetic fields from electric power line, electric devices, power converters)!

Please note, there are 3 models of this meter, FLAF BAND, 60 Hz and 50 Hz. I use and recommend to use the FLAT BAND meter. The 60Hz model of the TRI FIELD is calibrated to 60HZ, it will show 20 mG in 120Hz as if there where 40. The 50Hz model of the TRI FIELD is calibrated to 50HZ, it will show 20 mG in 100Hz as if there where 40. The FLAT BAND model will show the reality, it will show 20mG in 50Hz, 20mG in 60Hz the same as 20mG in 120Hz or 100Hz

Press here to ream more...


Bottom line:

One of the best low frequency EMF meters for home use.


Where to Buy:


  

Best version of these meter! 


 

TRI FIELD EMF ELF METER




TENMARS 192D -  Triaxial Magnetic Field Meter EMF/ELF meter

 T192


T192
T192
 

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 measure 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 advance features such as the HOLD, HOLD MAX, HOLD MIN features, data logger memory (up to 500 measurement 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 advance 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 the analog display that exist 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 hand bag.

 

Disadvantages:

  • Low LCD refresh rate
  • May not be so accurate in some cases.


Bottom line:

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 advanced 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 RF meters

TENMARS
TENMARS
TENMARS


In the last few years I have tested few TENMARS RF meters, 1 axis and 3 axis models. All suffered from the same issues:
  1. Not easy to use
  2. Sampling rate is too slow - meter could not identify fast changing signals
  3. LCD not informative 
  4. 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 is hard to follow
  5. They don't last for long - the sensor usually breaks after a while
  6. Very disappointing (seems like a very good package but it is not). On paper (feature list) is seems like a great deal but it was a very big disappointment for me.
As in photography, a good RF professional tester would mange 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 it's problems and issues.




Magnii MT-263  - coming soon!

MT-263 ELF meter

Magnii DSP-523 - coming soon!





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