It is equipped with a build-in electromagnetic radiation sensor, which can display tha radiation value on LCD screen after processing by the micro-control chip. You can make reasonable processing or take effective prevention measures toward the electromagnetic radiation according to the test result. RD600S EMF Meter is an electric field(EF), magnetic field(MF), and radio frequency field() multifuctional meter. [Widely used]Home, , outdoor, industrial,Mobile phone, computer,TV, refrigerator high voltage line radiation detection;Test the effect of such as radiation protective clothing and radiation protective film, also used on filed., Manufacturer: Akfldms