Anti-Strahlen-Karte

Characteristic of the anti-radiation and negative ion card: the rate for absorbing electro magnetic radiation is up to 93%,the rate for attenuation electro magnetic radiationis up to 99%. Usage:Put in pocket or hang in front is the best choice. Simply testing method:place radiation testing penin a certain scape ofcomputer,computer radiation will make testingpen flash and alarm voice,andput Anti-radiation card between testing equipment and computer,the flash and alarm voice will disappear. OEM is welcomed!