Features EF MF RF DETECTOR: 3 in 1 radiation detector, for electric field radiation detection, magnetic field radiation detection, and radio frequency radiation detection. ACCURATE MEASURING: The radiation detector adopts high accuracy sensor and micro control chip processor to ensure accurate and fast measurement. SCREEN AND ALARM: The detector adopts HD backlight large screen, which is clear and intuitive, with sound, light, display beyond the threshold alarm. RF DETECTION RANGE: Support radio frequency radiation detection such as wireless, Bluetooth, radio device, 5G signal, etc., to help improve the living environment. APPLICABLE SCENES: Suitable for distribution room, high voltage tower, signal tower, weak current well, high speed railway station, as well as microwave oven, electrical screen, WiFi router, mobile phone, etc. Specification: Item Type: EMF Detector Measurement Accuracy: ±5% Measurement Bandwidth: 50Hz-3500MHz Automatic Shutdown: Default to 15 minutes, can be turned off Working Temperature: -10-60℃ Working Humidity: <80%RH Battery: 1 x 6F99 9V Battery (included) Sensitivity: EF (Electric Field): 1V/m MF (Magnetic Field): 0.1mG or 0.01uT RF (Radio Frequency): 0.01mW/m² Measurement Range: EF: 1-1999V/m MF: 0.1-999.9mG or 0.01-99.99uT RF: 0.01-19.99 mW/m²Alarm ThresholdEF(V/m)MF(mG)RF(mW/m²)Safe<40<4<5Alert40-804-85-10Avoid>80>8>10 Package List:1 x Radiation Detector 1 x Battery1 x User Manual1 x Storage Bag Package List 1 x Radiation Detector 1 x Battery 1 x User Manual 1 x Storage Bag