Features: 1. This meter can test electric field radiation and magnetic field emission to reach the optimal test result. Can test houses, apartments, offices, outdoor, industrial sites radiation. 2. It is used to test and learn electromagnetic radiation situation indoor and outdoor. Support mobile phone, computer, TV, refrigerator, high voltage cable radiation test 3. This is a dual use meter can detect both electric and magnetic radiation, which display the radiation value on the LCD digital display. 4. Featuring sound and light alarm function, it will automatic alarm above safety value to ensure safety. 5. It also has data lock function, once press a button will lock radiation value. 6. Easy to operate with easy one-hand operation, easy to carry and make field measurement. Specification: Item Type: Radiation Detector Material: ABS Technical indicators Project Electric field Magnetic field Unit V/m T Precision 1V/m 0.01T Range 1V/m-1999V/m 0.01T-19.99T Alarm threshold value 40V/m 0.4T Reading display 3-1/2-digit LCD Testing bandwidth 5Hz-3500MHz Sampling time About 0.4 seconds Measurement mode Dual mode at the same time Overload indication Maximem value of measurement range on LCD Operating temperature 0C~50C Operation humidity relative humidity<80% Operating voltage 3.7V Li Battery Package List: 1 x Radiation Detector 1 x Instruction 1 x USB Cable