Features: The GN902 electromagnetic radiation detector provides 12 functions, including electric field radiation, magnetic field radiation, temperature measurement, data hold, average measurement, buzzer, unit change, sound and light alarm, and low battery indication. Made of high quality abs material, the GN902 electromagnetic radiation detector is durable and reliable, ensuring accurate measurements of electric field, magnetic field, and temperature in various environments. Designed for adults, the GN902 electromagnetic radiation detector is suitable for professionals and individuals concerned about potential health risks associated with electromagnetic radiation exposure. Whether at home or in other environments, the GN902 electromagnetic radiation detector provides a comprehensive solution for monitoring and detecting electric field, magnetic field, and temperature, ensuring a safe and healthy environment. With its sound and light alarms, the GN902 electromagnetic radiation detector alerts users when the radiation level exceed safety limits, providing peace of mind and promoting a healthy living and working environment. Specifications: Material:ABS Size: Approx.150.5x32.8x25.5mm/5.92x1.29x1inch Color:Red Model: GN902 Screen display: LCDbacklight screen Power supply: 1.5V AAA7 No.7 batteryx2(not include) Net weight: 53g Reading display: 3-1/2 bitLCD. Test bandwidth: 5Hz-3500MHz Sampling time: about 0.4 seconds Package Includes: 1 Set Electromagnetic Radiator Tester note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. ②.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.