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Your cart is empty. EMF Meter: Your Essential Tool for Electromagnetic Field Detection
In today’s technologically advanced world, electromagnetic fields (EMF) are everywhere,
from household appliances to wireless communication devices.An EMF Meter is a
professional tool designed to measure and monitor electromagnetic field strength, ensuring environmental safety.
Features:
★ Measures and detects three types of EMF pollution: AC magnetic, AC electric,
and RF/microwave radiation.
★ Large liquid-crystal display (LCD) and adjustable backlight for clear and precise reading.
★ The audio sound feature assists you in locating the sources of EMFS.
★ The Peak hold function assists in pinpointing digital EMF sources.
★ Can measure both standard and weighted measurements. Special frequency weighted
mode for measuring electric current from EMF in the human body.
★ Magnetic field strength is measured in milligauss (mG) for 3 axis X, Y, and Z.
MF Mode covers 40 Hz - 100 kHz with range of 0.1 - 100.0 milligauss (mG).
★ Electric field strength is measured in volt per meter (V/m). EF Mode covers
40 Hz - 100 kHz with range of 1 - 1000 volts per meter (V/m)
★ RF field strength is measured in millivolt per meter (mW/m²). RF Mode covers
20 MHz - 6 GHz with range of 0.001 - 19.999 milliwatts per square meter (mW/m²).
★ RF mode that is sensitive for gauging mobile phones and Wi-Fi EMF.
It can ddetect 5G signal and radio frequency up to 10Ghz.
★ EMF Meter with 9V alkaline battery included.
【The Standard Modes】
In standard modes for magnetic fields (MAG) and electric fields (ELEC), the field
measurement will measure fields using a flat frequency response.
The frequencies range from 40 Hz to 100 kHz, with equal sensitivity at 100 kHz.
【The Weighted Modes】
In weighted modes, the field measurement displays a proportional number corresponding
to the average electric current induced within the human body from
the fields. The number is equivalent to the amount of 60 Hz magnetic or
electric field that would be required to induce that amount of current.
【RF Modes】
To measure an RF field, adjust the knob to the RF setting and point the top of the
meter towards the potential source. Alternatively, you can simply hold
the meter vertically. The RF Mode uses the same plate sensor as the AC Electric Mode.
【The Peak Measurement】
The large numerals (at the bottom) show the field measurement in real time
and match the field percentage indicator graph.
The Peak Measurement (small numerals in the upper-left of the display) captures
the highest number and holds it for 5 seconds or until a higher number is
detected. For measuring magnetic and electric fields, the field measurement
numbers are effective. For cell phones, cell towers and wifi routers which
emit in pulses, the peak measurement numbers are more helpful.
【Frequently Questions and Answers】
Q: Do I measure on Standard or Weighted or both?
A: Both. Standard MAG or ELEC measures the intensity of the field without
taking frequency into consideration (40Hz-100kHz). Weighted MAG or
ELEC puts more emphasis on the frequencies above 60Hz. These higher
frequencies will generate more electric current in the human body. For
instance, at 60Hz, the body is exposed to field pulses 60 times per second,
whereas at 120Hz, the body is subjected to twice the number of pulses, or
120 times per second, even though the field remains the same.
Q: When to use MAG,ELEC or RF?
A: To determine when to use Magnetic (MAG), Electric (ELEC) or Radio (RF) fields,
it is important to understand the typical sources of each.
☛ MAG fields are usually emitted by motors, appliances, wiring and power lines.
☛ ELEC fields come from power lines, lights, wall outlets, electrical switches,
and ungrounded appliances.
☛ RF fields are often found near transmitting cell phones and wifi
routers, cell phone towers, microwave ovens, smart meters, wireless landline
phones or walkie talkies, and radio/tv stations.
Smart meters from power companies typically pulse once per minute, so watch for the
peak number. To reduce exposure, one should either avoid high-field areas
or use shielding, as each type of field has its own specific shielding techniques.
Q: What is considered a safe level?
A: There is no absolute safe level that has been established. However,
based on our research, there have not been any issues reported when staying below the following:
-- 3mG Standard Magnetic or 5mG Weighted Magnetic
-- 50 V/m Standard or Weighted Electric
-- 0.200 mW/m² RF (field measurement) or 1.000 mW/m² (peak measurement)
These exposure levels are the typical readings taken from homes and offices
that have relatively low total electromagnetic fields. The legal maximum
exposure levels are much higher than the levels mentioned above.
Some practitioners may suggest different levels.
Soundcheck
Reviewed in the United States on May 31, 2025
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Old Guy
Reviewed in the United States on May 26, 2025
This is a nicely made piece of test equipment with a wonderful, easy to read backlit screen. The backlight and the audible alert can be turned off. The datasheet is a little shy on specifications. It does a good job discriminating between magnetic, electric, and RF fields. I am a little confused by the readout for a magnetic field. The unit is sensitive, but it shows earths magnetic field at .3 mG when another meter shows 300 mG. This may be a misunderstanding on my part. It will clearly sense a magnet. To test the RF function I exposed it to the output of an RF signal generator and a couple of transmitters, and it seemed to be reasonably flat across a broad range of frequencies. The readout and the distance from the antenna reasonably track the inverse square law. To test the electric field I generated static electricity with a rabbit fur and an acrylic rod. Reaching a few hundred volts per meter was easy. I used a Wimshurst generator to reach higher voltages. The unit displays up to almost 1,000 volts per meter. But with an electrical discharge a couple feet away, the units display becomes distorted and it shuts off. Turning it off and on resets it and it works normally. Overloading the unit with a magnetic or RF field did not cause this display upset. I am wondering if the electric discharge is upsetting the internal circuitry and not the front end. I may experiment with some shielding on the circuit board.This unit would be perfect for classroom demonstrations of relative signal strengths and demonstrating the inverse square law. I would like to see some additional technical information and specifications in the instructions.
K A Baker
Reviewed in the United States on May 26, 2025
I ordered this meter to use in various electrical and electronics projects around my home and home shop. The meter came well boxed and with sufficient instructions for setup and use. The meter requires a 9 Volt battery to operate and is simple to change out by sliding off the rear panel. You'll also note in that rear panel there is a momentary push button that activates or deactivates either the sound for the meter or the backlight for the meter but nowhere did I find any adjustment for the level of the volume and I noticed that in any type of a slightly noisier than normal environment it's difficult to hear the audio of the meter and you must rely strictly on the video portion.The operator or user manual for the meter along with the front face labeling has some misspellings which is often typical of overseas products from this area. I did not notice that either of these situations affected the operation or readings of the meter so that kind of comes with the territory. I was able to measure various EMF or electrical or magnetic fields around fluorescent lights, wall outlets, and electrical switches and wiring and the meter seems to respond appropriately to all of these particular sources. I also was able to measure RF frequencies around the cell phones, microwave oven and several of my radios and Wi-Fi type equipment. I was able to receive and measure the readings that I would have expected for those sources both the standard MAG or electric measurements. You should note, this meter does not take the frequency of the source into consideration so anything outside of the reported operating frequency of 40 Hertz to 100 kHz will likely not be noted or measured or reported on the background meter.Overall, for the price point of this meter I'm happy with the output readings and capabilities. I would have liked to seen an adjustment for the volume or at least and increased volume as it was difficult to hear the tone in the outdoors or otherwise noisy work environment. I hope that my review will help you determine if this meter is appropriate for your application. Thanks for reading!
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