Detects 3 Types of EMF Pollution This EMF meter accurately measures AC magnetic fields, AC electric fields, and microwave radiation, helping you monitor common sources of electromagnetic exposure in your home, office, or outdoor environment Auto Sound & Tricolor bar Alarm The Tri-Color bar display (green, yellow, red) clearly shows safety levels. An audible alarm activates when readings exceed safe values (250 V/m, 5 T/50 mG, or 50 mW/), ensuring quick response Easy One-Hand Operation Compact and lightweight EMF detector designed for field testing and portable use. For accurate electric field measurement, hold the device in your hand, as the human body acts as a natural grounding source Mute Function & Power-Saving Design Switch to silent mode when testing in quiet areas or during ghost hunting investigations. The EMF reader automatically powers off after 15 minutes to save battery life. Continuous measurement is available by disabling the APO function Illuminated LCD Screen for Dark E