Introduce: Electromagnetic radiation tester successful electric field radiation, magnetic field radiation compatibility test and achieve the test effect, used to test and understand the status of electromagnetic radiation indoor and outdoor environment. Product built-in electromagnetic radiation sensor, through the microcontrol chip processing, to LCD digital display radiation value. According to the test results, electromagnetic radiation should be treated reasonably or avoided effectively. Feature: Unit: V/m, uT Precision: 1V/m, 0.01uT Range: 1 V/m-1999 V/m, 0.01 uT-99.99 uT Alarm threshold: 40V/m, 0.4uT Model: GN902 Buzzer switch: √ Screen display: LCD backlit screen Low battery prompt: √ Unit switching: uT/mG ℃ / ℉ data retention: √ Power supply: 1.5V AAA batteryx2(Ship without battery) Auto power off: √ Sound and light alarm: √ Reading display: 3-1/2 LCD Working voltage: 3V Test bandwidth: 5Hz-3500MHz Operating temperature: 0℃~50℃ Sampling time: About 0.4 seconds Operating humidity: ≤80%PH Test Mode: Average/ Mode Overload Tips: LCD display range, maximum value Electromagnetic radiation monitoring: Home, office, outdoor, industrial... Electromagnetic radiation detection: Mobile phone, computer, TV, refrigerator, high voltage cable... Radiation protection supplies inspection: Effect inspection of radiation protection clothing, radiation protection film and other Material: ABS colour: red Package Contents: 1 x Electromagnetic radiation tester 1 x English lnstruction Manual 1 x screwdriver Only 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.