With an easy-to-read ’traffic-light’ display, it helps you detect and measure magnetic fields (in nT) from electrical sources.

Handy, pocket-sized magnetic field monitor with 10 colored LED lights providing measurements in nanotesla, from 0 - 2400 nT. Ideal for all magnetic fields from electrical sources at operating at frequencies between 20-1200 Hz, which includes normal mains electricity at 50/60Hz.

It displays field strengths between 0-2400 nanotesla, with scale points (LEDs) at 100, 150, 200, 300, 400, 600, 800, 1200, 1600 and 2400 nanotesla, which are further grouped into bands of green, yellow, and red.

Easy to use digital meter measures the level of EMF magnetic field radiation from power lines, computers, kitchen appliances, and more!
This meter could not be easier to use, just turn it on and get accurate reliable readings. Perfect for situations needing high resolution measurements.

Switchable between either microTesla or milliGauss at the press of a button and can display and hold maximum readings.

This meter is very sensitive and has a very wide measurement range up to 2000mG. With its clear and easy to read display it is a joy to use.

* Display: 3-1/2 digits LCD, maximum reading 1999.
* Range: 200/2000 mG,20/200µT.
* Resolution: 0.1/1 mG or 0.01/0.1 µT.
* Frequency response: 30Hz to 300Hz.
* Sensor: Single Axis
* Accuracy: ±(3%+3dgt) at 50Hz/60Hz.
* Sample rate: 2.5 times per second
* Weight: 180g
* Dimensions: 130 x 56 x 38 mm
* Battery : 9V Lasts approx 200 hours

The TriField ® Meter combines all the features needed for fast, accurate measurements of electromagnetic pollution.

It independently measures electric field and magnetic field, and is properly scaled to indicate the full magnitude of currents produced by each type of field inside the human body. As a result, it “sees” much more than any other electromagnetic pollution meter.

Depending on where the knob is set, the meter detects either frequency- weighted magnetic fields (two 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. 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.

This meter is the only one which combines magnetic, electric, and radio/microwave detectors in one package, so that the entire nonionizing electromagnetic spectrum is covered. In addition, the magnetic setting and the electric setting measure true magnitude, a feature found elsewhere only in more expensive meters. 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 radiowaves when the meter is pointed toward the source.

Surprisingly, the standard TriField Meter is one of the least expensive meters available. The few other meters below $150 read only low-frequency magnetic fields and only in one direction (not true magnitude). The magnetic section of the TriField meter 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 increases linearly from 30 Hz to 500 Hz, but with some residual sensitivity up to 100 MHz). A unique network combines the three coil outputs nonlinearly 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.

The TriField Meter comes with a 9-volt transistor battery included. This type of battery lasts about 10 hours (total measurement time). When the BATTERY TEST reads low, the battery can be replaced with any rectangular 9 volt transistor or alkaline (which lasts about 50 hours) type.

Instruments can be used to measure EMF strengths to which people are exposed. The magnetic, electric and radio frequency fields are measured separately as there are different recommended levels for each one. As part of your survey, any hot spots that are raised above these guidelines will be highlighted.