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Don't Be a Victim of Electronic Harassment! Quickly scan your home, office and car to identify personal exposure to non-ionizing electromagnetism of the strength and types believed to pose a possible health risk. Measure high ELECTRIC fields around cell phones, microwave ovens (check for leaks, door sealing, etc.
Now Comes With Audio Alert!!!

Video Demonstration File

Purchase Price: $295.95 Currency Conversion


Rental Price: $75.00/wk



Measure high ELECTRIC fields around cell phones, microwave ovens (check for leaks, door sealing, etc.), and CB radio transmitters, computer monitors, TV's, fluorescent lights, improperly grounded electrical equipment, and electric blankets (especially if the AC plug polarity is reversed) - even when in the OFF position if plugged in!

Now Comes With Audio Alert!!!

The Magnetic, Electric, Radio and Microwave Detector (M.E.R.M) uses a continuous sampling analog readout. Get fast & accurate measurements of high, artificial electromagnetic fields around clock radios, computers, electric appliances, running cars (especially near front floorboard, dashboard, and radio). Calibrated to 60Hz (North America). Detect and measure RADIO/MICROWAVE fields around cell phones, microwave ovens (check for leaks, door sealing, etc.), and CB radio transmitters. A reading of .2 mW/cm2 at a distance of six feet suggests a leaking microwave door seal.

The radio/microwave setting can detect up to three billion Hz (3 GHz), which lets you gauge radio-wave power, CB and cellular phone equipment, and many types of radars.

Most meters priced under $500.00 read only low-frequency magnetic fields and only in one direction (not true magnitude). The magnetic section of the M.E.R.M Detector has three field-detecting coils pointing in the X, Y, and Z directions. A circuit amplifies these signals and gives them the proper frequency-weighting (sensitivity increase linearly from 30 Hz to 500 Hz, with some residual sensitivity up to 100 MHz). A unique network combines the three coil outputs nonlinearity to approximate a true magnitude. The meter is sensitive from 0.2 to 100 milligauss full scale at 60 Hz (or 0.1 to 50 milligauss full scale at 120 Hz, etc.) with a resolution of 0.2 milligauss in the sensitive range. Accuracy is + / - 20% at mid-range.

Depending on the position of the knob, the meter detects either frequency-weighted magnetic fields (two separate scales) or frequency-weighted electric fields in the ELF and VLF range. The device has significant sensitivity at 100,000 Hz, well past the 17,000 Hz horizontal scan of video displays.

If you hold the meter in the center of a room and tip it to various angles, the magnetic reading will stay approximately the same regardless of which way you tip or rotate it. The electric reading is similar, although the presence of your body alters the actual electric field, so readings will vary more. The radio / microwave setting reads the full power of radio waves when the meter is pointed toward the source.


A knob on the front has six positions: OFF, BATTERY TEST, two MAGNETIC field sensitivities (0.5-100 milligauss at 60 Hz, and 0.2-3 milligauss at 60 Hz, the second sensitivity to measure weak fields more accurately), ELECTRIC field and RADIO/MICROWAVE power density. The meter face is analog (needle type). A needle reading of one-third of full scale corresponds to either 3 milligauss (or 0.6 milligauss) @ 60 Hz, 3 kilovolts/meter @ 60 Hz, or 0.04 mW/cm2 respectively in the magnetic, electric, and radio/microwave field settings. Average magnetic field strength in North American homes and offices is 1-3 milligauss, so the meter is labeled "HIGH" above these levels.


In homes or offices, some areas are "hot" spots with readings in the HIGH range. Most often, this is caused by magnetic fields, which come largely from unpaired internal wiring. (Contrary to popular belief, power transmission lines and transformers do not generally contribute as much magnetic field as does internal wiring.) Other magnetic sources include video displays, motorized clocks and other equipment, electric blankets and heaters, fluorescent lights and light dimmers, and the transformers that are inside consumer devices. Much of the total field strength is from frequencies that are harmonics or multiples of 60 Hz (120 Hz, 180 Hz, etc.) and 17,000 Hz of video displays. Cars (especially near the front floorboard of electronic ignition cars) and motorcycles have fairly strong fields that are at frequencies higher than 60 Hz. Magnetic field is difficult to shield, but sheet steel is somewhat effective.


A few areas in most homes read HIGH in the electric field setting. These include areas near improperly grounded equipment, the front of video screens, and fluorescent lights. Most of these fields can be easily shielded using a grounded metal screen or foil; VDT screens of this type are readily available. You can greatly reduce the strength of an electric field just by placing your hand in front of the source. This effect can be seen using the M.E.R.M Detector.


Occasionally, certain areas read HIGH in the radio/microwave setting. These include door seals around microwave ovens and the back of the microwave oven, pagers, wireless phones, and cellular phones (but not regular radio phones, which are very low-power). Radio/microwaves can be shielded in the same way as electric fields, although the lower frequency radio waves are not shielded by your hand as easily as microwaves are. (Metal screens will shield both.) In the United States, radars and FM transmitters can legally expose residents to moderately high power levels (as high as 10 mW/cm2 briefly or .57 mW/cm2 near cellular towers).


Some equipment is sensitive to magnetic fields (ie, a high resolution color monitor may not function properly above 30 milligauss). By seeing "hot" spots in your home and office, you can move equipment or furniture to reduce exposure. If a room has a "hot" spot, fields are generally much weaker elsewhere in that same room.

** Actual Results Will Vary.

The information and product(s) that we are providing are for educational purposes only. As stated above, this information and product are not intended to diagnose, treat, cure or prevent disease.

In all health-related situations, qualified healthcare professionals should always be consulted.

Recommended Reading:

* How Do I Know If I've Been Bugged?

* Targeted Individuals
* Prevention and Detection of Electronic Harassment and Surveillance (PDEHS)

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Contact Info:
Monty Henry
President and Founder LLC
530 Calle La Roda Unit# 210
Camarillo, California 93010-2768 USA
Local: (818) 298-3292
Toll Free: (888) 344-3742 SMS-Enabled
Fax: (805) 991-9477

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Cage Code-1SZS6
DUNS# 086901571



Detects Either Frequency-Weighted Magnetic Fields (2 separate scales) or frequency-weighted electric fields in the ELF and VLF range. It has significant sensitivity at 100,000 Hz, well past the 17,000 Hz horizontal scan of video displays.

Magnetic - Scale: 0 to 100 mG (milligauss) - Minimum Sensitivity = 1 mG - Accuracy: + or - 20% - Frequency Range: 50 Hz to 100 kHz

Magnetic Expanded Sensitivity - Scale: 0 to 3 mG - Minimum Sensitivity = .2 mG - Accuracy: + or - 20% - Frequency Range: 50 Hz to 100 kHz

Electric - Scale: 0 to 100 KV / m (Kilovolts per Meter) at 60 Hz with resolution of 0.5 KV / m (1 KV / m = 1000 V / m - Minimum Sensitivity = .5 KV / m - Accuracy: + or - 30% - Frequency Range: 50 Hz to 100 kHz

Radio / Microwave - Scale: 0 to 1 mW / cm2 (milliwatts per centimeter squared) - Minimum Sensitivity = .01 mW/cm2 - Accuracy: -50% or +100% due to reflections off the room and / or user - 50 MHz to 3 GHz

Magnetic and Electric settings measure TRUE magnitude, a feature usually only found on very expensive meters.

Includes life-time warranty, 9V battery, and instructions.

Customer Reviews:


It changed my behavior , October 1, 2009 By Retired Scientist (USA) - How often do you buy a product that changes what you do?

I became aware of EMF problems because of a friend who has power lines just outside her condo. After considerable research, I bought the (M.E.R.M) as the best product for the money. This product is great! Clear directions, and measures all the stuff that's important.

Here's what I'm now doing differently:

1. I rearranged our TVs so the older high-radiation sets are in rooms we don't use very often.
2. I sit on the other side of the dining table when the living room TV is on (it radiates like fury in all directions, out to 6 feet distance).
3. I try to stay 6 feet away from the microwave oven when it's on (you would be amazed at the field strength it produces).
4. Whenever possible, I set my cell phone (iPhone) a foot away instead of in my pocket next to my body - every time it "checks in" with the nearest cell tower, there's a spike in RF radiation nearby.
5. I am aware that wherever there's a running motor, there will be fields in the immediate vicinity - up to a foot away. So don't lean against a running dishwasher, for example.


I highly recommend this product! A necessary device for health protection , April 26, 2009 By Daryl B.(Scottsdale, AZ USA) I recently purchased one of the (M.E.R.M). I am a realtor and I had a client concerned about EMF from nearby power lines, so I decided to do my own test. Everyone has heard about the possible health threat from EMF. Any reading above 3 is not suppose to be exposed to for long periods of time. I checked with the power company and they stated the power lines were 12Kv which is low compared to high voltage transmission lines on towers. Wow, was I shocked and amazed. By the house and below the lines the readings were 15-20. I backed down the street away from the lines and I experienced high levels of exposure pass the second house on the block. We also recently purchased a massage bed and usually laid on it for 30 minute sessions. This too had extremely high EMF readings in the 20+ range. Forget about paranormal and ghost detection. Everyone should have one of these meters to see what they are being exposed to daily. With such high occurances of cancer and other diseases, I am going to do everything possible to protect myself, my family and inform the public of the possible dangers of EMF. If you do not already have a meter like this, buy or rent one. I feel it is very important to your health and well being.


Excellent Device
, June 7, 2007 By E. This device works perfectly. Very good and sensitive for needs for health and wellness to know how much microwave radiation we are exposed to. Try turning it on near your microwave oven while it's running and see how far you have to back away to be safe.

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