1、 Electromagnetic radiation detector: It is easy to operate, easy to carry, and can quickly measure the electromagnetic radiation intensity around the device. The test frequency band is wide and can be divided into high frequency and low frequency measurements. The test is accurate, and the lowest frequency of measuring electromagnetic radiation can reach 50Hz. 2、 Suitable for the crowd: health care assistants for pregnant women, avoid radiation to the fetus, healthy growth of adolescents and children, scientifically avoid radiation, practitioners are more dangerous, avoid long-term radiation, parents are old and have low resistance, they should stay away from electromagnetic radiation. 3、 Low frequency electromagnetic radiation: All electromagnetic radiation sources within the equipment test specification, such as computers, televisions, copiers, fax machines, air conditioners, refrigerators, audio systems, washing machines, power supplies, etc. 4、 High-frequency electromagnetic radiation: All electromagnetic radiation sources in the device are tested for technical indicators such as WiFi routers, mobile phones, mobile phone towers, TV signal towers, and broadcast signal towers. 5、 Environmental electromagnetic radiation: all electromagnetic radiation sources in the test technical indicators of equipment rooms, offices, computer rooms, control rooms, cables, high-voltage lines, monitors, transmitters and other equipment.