Accurate measurement: built-in electromagnetic sensor, after processing by precise chip control, the radiation value can be displayed on the transparent digital LCD display. Multifunctional: Test the mean value or maximum value readings (maximum value), and save the data with a single display key. The large backlit LCD display can be clearly seen. Widely used: Mainly used in televisions, computers, printers, microwaves, refrigerators, cell towers, low-frequency household appliances, ghost hunting and so on.