Can be used for electromagnetic radiation of House and apartment,, outdoor and industrial site, electromagnetic radiation of mobilephone Three color light indicating the current field states: safe, alart, avoid, and the electric field data over the, the screen will become red to alarm you Sound and light alarm function, it will automatic alarm when the value over the value Radiation assessment function, which can indicating current radiation value is at Can simultaneous detection of electric and magnetics field radiation for you, allows you to get two important values in, Manufacturer: Msioytog