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Yellow handheld EMF meter with LCD display, model GM3120

TeKit

TeKit GM3120 EMF Meter 1-1999 V/m 0.01-19.99 T

SKU CH-TG3F-WMGNP MPN GM3120

Measures electric field from 1 to 1999 V/m and magnetic field from 0.01 to 19.99 T with sound-light alarm at 40 V/m and 0.4 T

  • DC voltage9v
  • Analog/digitalDigital
  • Included itemsDigital LCD Electromagnetic Radiation Detector Dosimeter Tes
  • Certifications and standardsUL Listed
  • Battery type9v
  • Color and finishYellow
  • Measures electric and magnetic fields simultaneously for complete EMF assessment
  • Audible and visual alarm triggers at 40 V/m or 0.4 T for immediate safety alerts
  • One-key data lock freezes readings for easy recording and analysis
  • Clear 3½-digit LCD shows values in V/m and T for straightforward interpretation
  • Covers 5 Hz to 3500 MHz bandwidth for broad-spectrum radiation detection

Dual-field EMF detector

The TeKit GM3120 is a handheld digital meter that measures electric-field strength and magnetic-flux density simultaneously. It covers 1 to 1999 V/m for electric fields and 0.01 to 19.99 T for magnetic fields. A 3½-digit LCD shows the readings, and a sound-light alarm activates when either value exceeds its preset threshold. The unit runs on a single 9 V battery.

Home owners and hobbyists.

This meter suits anyone wanting a quick indication of electromagnetic levels around appliances, wiring or outdoor sources. The automatic radiation-assessment prompt and one-key data-lock make spot checks simple. Buyers who need traceable calibration certificates or measurement uncertainty budgets for regulatory reporting should look at laboratory-grade instruments instead.

Alarm thresholds at 40 V/m and 0.4 T

The instrument triggers its audible and visual warning as soon as the electric field rises above 40 V/m or the magnetic field exceeds 0.4 T. These fixed limits are the primary decision point for safety-oriented users. If your application requires different trigger levels or continuous data logging, this model will not meet that need.

How it compares

Measured against everything we stock in Meters, Testers & Measuring Tools, at today’s prices. Recalculated every night.

Price $24.99
Cheaper than about 71% of the 3,030 comparable items (median $54.99).

Specifications

Product
Brand nameBenetech
Model nameGM3120
Color and finishYellow
Product typeElectromagnetic Radiation Detector Dosimeter Tester EMF Meter Counter
Power
DC voltage9v
Battery type9v
In the box
Included itemsDigital LCD Electromagnetic Radiation Detector Dosimeter Tester EMF Meter Counter
Environment & compliance
Certifications and standardsUL Listed
More details
Analog/digitalDigital
DC polarity indicatorYes

Questions about this item

What does the 1999 V/m upper limit mean when I am scanning a room?

The meter will show electric-field strength up to 1999 V/m; anything stronger simply reads at the top of the scale.

How does the 5 Hz – 3500 MHz bandwidth affect what the GM3120 can detect?

It covers low-frequency mains fields through to common RF sources such as Wi-Fi and mobile signals, but not millimetre-wave bands.

What power source does the GM3120 need to operate?

A single 9 V battery powers the unit; the DC polarity indicator helps confirm correct insertion.

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