1: Multi-function detector: supports magnetic field measurement, electric field measurement, temperature measurement.2: High-definition -screen digital display, clearly visible.3: Double light alarm prompt.4: Small and portableApplication scenarios: mobile phone computer detection, maternity supplies detection, high voltage line detection, server detection, household equipment detection, outdoor environment detection.Basic parametersMaximum reading value: 0.01~199uT (0.1~1999mG)Detection frequency width: 30Hz~300HzResolution: 0.01uT/0.1mGColor: BlackMaterial: ABSPackage Contents:1X Electromagnetic radiation detector (without 2XAA batteries)1X English instruction manualOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.