An electromagnetic radiation meter is a portable monitoring tool that can effectively monitor & measure electromagnetic radiation & leakage. It is mainly used for monitoring & measuring high field strength areas such as high electromagnetics of fixed or mobile-radio equipment such as piezoelectric grids, broadcasting stations, mobilephones, etc. Come & have a try, it will not let you down. Sound& Light Alarm: When the When the detected electromagnetic radiation exceeds the standard, it will sound & light to alarm you. Handheld portable design, easy to carry & store, you can put it in your pocket for carrying. Built-in Battery: Built-in large capacity lithium battery to supplys power, & you can recharging it in time when power off. Wide Applications: Measuring high-voltage lines, distribution stations, computers, televisions, audio, magnetics field radiation generated by wires & sockets, measuring the alternating magnetics field radiation generated by alternating