Review on 🔍 EMF Meter - Hand-held LCD Detector for Home, Office, and Ghost Hunting | 5HZ—3500MHz, Sound-Light Alarm, Electromagnetic Field Tester with Temperature Sensor by Sean Young

don't vouch for accuracy at all, but it definitely made sense. The EMI at the edge of the microwave door was about 2 orders of magnitude higher than my router's antenna (at 2.4 GHz). It doesn't have the accuracy to detect very low energy levels, such as B. detecting Wi-Fi dead zones. Only good for finding dangerously high levels. Also, you can't look at the energy levels at different frequencies. it is only 1 value for the whole band. I wasn't expecting much more than what I got since hardware that can apply FFT to the signal would easily cost ten times as much.