Features! The RD630 EMF Meter is an electric field (EF), magnetic field (MF), and radio frequency field (RF) 3-in-1 multifunctional meter. It is equipped with a built-in electromagnetic radiation sensor, which can display the radiation value on the LCD screen after processing by the micro-control chip. You can make reasonable adjustments or take effective precautionary measures against electromagnetic radiation according to the test results. APPLICATIONS! It is used to test electromagnetic radiation levels in living environments such as offices, computer rooms, power distribution rooms, and near transmission towers. Mainly used for testing routers, Bluetooth devices, radio equipment, TVs, computers, printers, microwave ovens, refrigerators, cell towers, and low-frequency household appliances. Packing List! 1 x RD630 EMF Meter, 1 x English and Russian User Manual, 1 x Dust-proof bag