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Alpha Lab Inc.

Line EMI Meter

(7 reviews) Write a Review
Cheryl

16th Jan 2026

Easy to use and definitely picks up DE that wasn't showing...

Easy to use and definitely picks up DE that wasn't showing on other meters. Best of all, it wasn't overly expensive.

$226.05
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SKU:
SLT-1387
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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".

Features:

  • 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

Includes:

  • Line EMI Meter
  • 1 Year Manufacturer Defect Warranty
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)
Size:
5.2 x 3.6 x 1.6 inches; 132 x 91 x 41 millimeters
Weight:
8 ounces; 227 grams
Power Cable:
Detachable 2-wire cord (North America)
Meter Case Material:
Plasic

7 Reviews Hide Reviews Show Reviews

  • 5
    Easy to use and definitely picks up DE that wasn't showing...

    Posted by Cheryl on 16th Jan 2026

    Easy to use and definitely picks up DE that wasn't showing on other meters. Best of all, it wasn't overly expensive.

  • 5
    Great "dirty electricity" meter.

    Posted by Philippe on 10th Dec 2025

    Great "dirty electricity" meter. The only thing missing is a switch to turn off the sound when needed and an audio 1/8" plug to use external device (headphones or data login devices). Other than that, it's simple to use and easy to read.

  • 5
    Line EMI Meter

    Posted by Christina Trowbridge on 23rd May 2025

    Gives a clear reading and sound of dirty electricity in your outlets. It also verifies if you have mitigated it! Easy to use!

  • 5
    TriField Line EMI Meter

    Posted by Tyler Bowen on 13th Jan 2025

    Seems to work as advertised.

  • 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.

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