["Electromagnetic Radiation Detector EMF Meter Radiation Dosimeter Monitor Tester BR-9A\n\nFeatures:\nHigh sensitivity, wide measuring range, has a long service life.\nSmaller body, larger screen, clearer measurement data and easier operation.\nRadiation detector dosimeter for everyday use BR-9A help to avoid radiation hazrd in everyday life\nWith mute, alarm, particle sound selection button, test, mean value reset retest selection button, backlight can be turned on or off.\nwith USB charging port\n\nApplications: \nHigh 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-compatible devices, for transformers, troubleshooting, chargers, Mobile phone base station, high voltage electric tower, electric motor and other electrical equipment\n\nTest range:\nPower density: 0-99.999uw/cm2 \nElectric field strength: 0-999.99 v/for m \nMagnetic field strength: 0-99.999uT \n\nTest accuracy:\nPower density: 0.001uw/cm2 \nElectric field strength: 0.01v/for m\nMagnetic field strength: 0.001uT\n\nFrequency Range:\n50MHZ-5GHZ Power density\n20HZ-100MHZ Electric field strength\n20HZ-1MHZ Magnetic field strength\n\nSpecifications:\nPower supply: 3 * 1.5V AA batteries or 1.2V rechargeable battery\nCharging: USB 5V 2A input\nCharging time: ≥4hours\nSize: 105*70*30mm\n\nPackage included:\n1 * BR-9A Electromagnetic Radiation Detector"]