The Satic EMI Meter measures electromagnetic interference that is commonly referred to as "dirty electricity" on AC power lines.

Once plugged in, the monitor immediately displays total line interference, also referred to as line noise, rated in millivolts as measured from peak-to-peak, ranging from 0-2999mV.

The unit records peak mV while also displaying real-time mV numbers. The LCD displays adds a second visual indicator in the form of a visual swoosh-shaped line diagram indicating peak interference before and after filtering as well as displaying voltage.

A speaker adds an audio indication proportionate to the real-time line interference.