Model: HT1, Size:20 X 4.5 X 2 cm, Weight 30 gram, DC3V,AA battery,Looks like TV control,Plastic shell (Temporarily use As one of the most advanced Anti-Counterfeit test tools available in the world now, Infrared Laser Test Pen is used for testing securities, brand, currency, certificates etc. on the specific area of their surface. Quite different from UV fluorescence authentication, this proves ...