[An EMF meter with two functions]: test electric field and magnetic field strength at the same time[Sound-Linght Alarm]: When the test result exceeds the safety value, the instrument will automatically sound an alarm[Easy to use and operate]: Data retention and clear LCD display, one key to lock the radiation value, easy to read the value, radiation assessment can remind you whether the radiation value is safe[Large Clear LCD Screen]: Equipped with a built-in electromagnetic radiation sensor. After being processed by the control microchip, it can display the radiation value clearly on the LCD screen[Application range]: TV, induction cooker, rice cooker, refrigerator, computer, household appliances, electrical wires, etc. Electromagnetic radiation detectors are mainly used in electrical appliances in life, which can effectively help people stay away from radiation sources and protect them from radiation hazards