High sensitivity, wide measuring range, has a long service life. Smaller body, larger screen, clearer measurement data and easier operation. Radiation detector dosimeter for everyday use BR-9A help to avoid radiation hazrd in everyday life With mute, alarm, particle sound selection button, test, mean value reset retest selection button, backlight can be turned on or off.with USB charging port Applications: High frequency IF low frequency, magnetic field, power density, mobile phones, routers, microwave ovens, televisions, signal towers, desk lamps, substations, washing machines, refrigerators, computers, copiers, impressions, walkie-talkies, Bluetooth devices, transformers, troubleshooting, chargers, Mobile phone base station, high voltage electric tower, electric motor and other electrical equipmentFeatures: High sensitivity, wide measuring range, has a long service life. Smaller body, larger screen, clearer measurement data and easier operation. Radiation detector dosimeter for everyday use BR-9A help to avoid radiation hazrd in everyday life With mute, alarm, particle sound selection button, test, mean value reset retest selection button, backlight can be turned on or off. with USB charging port Applications: High frequency IF low frequency, magnetic field, power density, mobile phones, routers, microwave ovens, televisions, signal towers, desk lamps, substations, washing machines, refrigerators, computers, copiers, impressions, walkie-talkies, Bluetooth devices, transformers, troubleshooting, chargers, Mobile phone base station, high voltage electric tower, electric motor and other electrical equipment Test range: Power density: 0-99.999uw/cm2 Electric field strength: 0-999.99 v/m Magnetic field strength: 0-99.999uT Test accuracy: Power density: 0.001uw/cm2 Electric field strength: 0.01v/m Magnetic field strength: 0.001uT Frequency Range: 50MHZ-5GHZ Power density 20HZ-100MHZ Electric field strength 20HZ-1MHZ Magnetic field strength Specifications: Power supply: 3 * 1.5V AA batteries or 1.2V rechargeable battery Charging: USB 5V 2A input Charging time: 4hours Size: 105*70*30mm Package included: 1 * BR-9A Electromagnetic