Line EMI Meter

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Line EMI Meter

Dirty Electricity Power Line Meter

This Power Line Meter measures high frequency electric fields present on your power lines in milliVolts peak-to-peak.

It captures frequencies between 10 KHz and 10 MHz. These high frequency electric fields are commonly known as "dirty electricity".


  • Easy to operate, simply plug in the meter to each outlet you wish to test throughout your home and record your results
  • LCD digital display will indicate the sum total field strength of all sources within its frequency range in mVpp (milliVolts Peak-to-Peak) as well as the line voltage at 60 Hz as a secondary measurement
  • Audible amplitude demodulated tone of the measured Electromagnetic Interference (EMI)
  • Includes a yellow status bar at the top of the display to help determine the severity of the EMI being detected
  • Wide frequency detection range of 10 KHz to 10 MHz
  • Dimensions: 5.2 x 3.6 x 1.6 inches; 132 x 91 x 41 mm
  • Powered by plugging into a standard wall outlet, no battery required!

Additional Features:

  • Audible Tone: Audio assessment - internal speaker plays the sound of the EMI, amplitude demodulated, in order to help identify the EMI source
  • LCD Display: Easy to read 3.5 digit display
  • Power Supply: North American Power Cord Included - no battery required
  • Line Noise: Total line noise value displayed in milliVolts Peak-to-Peak (mVpp)
  • Line Voltage: Value displayed in AC Voltage (VAC) at 60 Hz


Operating Voltage:
85 - 300 VAC 50/60 Hz
Refresh Rate:
@ 4x/sec
Line Noise Range:
0.1 - 1999.0 mV Peak-to-Peak
Noise Read Accuracy:
+/-8% from 20kHz to 2MHz (within a factor of two from 10kHz to 10MHz)
5.2 x 3.6 x 1.6 inches; 132 x 91 x 41 millimeters
8 ounces; 227 grams
Power Cable:
Detachable 2-wire cord (North America)
Meter Case Material:

3 Reviews

  • 4
    EMI monitor

    Posted by Sophia on 26th Feb 2024

    Seems like a good machine. Could not comment about the precision of the data but gives a good idea.

  • 5
    Easy to use

    Posted by Sholeh on 12th Sep 2023

    The meter was a good price and easy to use. These products are all essential to today's lifestyle.

  • 5
    Great meter

    Posted by Diane on 25th Nov 2021

    Very simple to use. Being able to hear the audio equivalence is nice. Having a button to turn the sound off/on could have been a nice feature to add to this meter. Delivery was fast. Great entry level meter for mesuring high transients - my next purchase will be an oscilloscpe, to get more details about waveform and frequencies.