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Dirty Electricity Line EMI Meter / Monitor

The Dirty Electricity Line EMI Meter is an easy-to-use monitor to measure the amount of dirty electricity present on your house wiring. If you want to know how much electrical pollution you are being exposed to, the Dirty Electricity Line EMI Meter will measure electromagnetic interference in a single-phase AC power line. No battery needed as it plugs into a wall socket. It immediately displays total line noise in millivolts (range 1999 mV, resolution 1 mV) in the frequency range 10 kHz–10 MHz (the frequency limits at which sensitivity is half of the maximum sensitivity). A speaker plays the sound of the EMI, with amplitude demodulated, which identifies EMI sources such as AM or shortwave radiofrequency.


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Dirty electricity.

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If you want to detect dirty electricity levels at your home and other environments, the EMI Monitor can be used to measure “dirty power”, interfering signals in the mains grid. The EMI meter is easy to use as all you have to do is plug it into a power socket, and the electronic display will show readings in millivolts (mV), a standard electrical unit of measure. The Line EMI Dirty Electricity Monitor measures electromagnetic interference in a single-phase AC power line. Its OLED screen displays AC voltage and noise voltage. The speaker emits a sound that increases according to the intensity of the frequency – the more interference the louder the sound.

Test your Dirty Electricity Filters

Dirty electricity can tamper with the correct functioning of sensitive electrical equipment. In addition, it emits electromagnetic fields (EMF) that could lead to a wide range of health issues. The more dirty electricity on your wiring, the more EMF in your surroundings. Try the EMI monitor with and without your filters to see what difference they really make!

Easy to use

Simply plug the EMI meter into an electrical outlet to find out how much dirty electricity is present on nearby wiring. It comes with a detachable two-core power 0.8 m-length cord that plugs directly into a socket.

Small & Compact

The dimensions of the device are 132 X 91 X 41mm, and it weighs 150g.


Operating Voltage: 85-300 VAC 50/60 Hz.
Voltage Reading: 85-250 VAC; Accuracy +/- 1 VAC
Line Noise Range: 0.1-1999.9 mVp-p AC (differential)
Line Noise Accuracy: +/- 8% @ 20 kHZ to 2 MHz; within a factor of 2 from 10 kHz to 10 MHz
Input Voltage: AC 85Vac – 250Vac 50/60Hz (accuracy +/- 1 VAC)
Frequency Range: 10KHz – 10MHz
Noise Indication: 4 digits yellow and blue two-color OLED digital dot matrix display