... Model: HT1 1 Detecting Theory Based on invisible Infrared theory, UP-CONVERSION PHOSPHOR Anti-Stokes the product ... can detect item with infrared Anti-counterfeit material. 2 Application method To aim ... Marks:The products is detector which can detect Infrared IR phosphor which is produced by www.kpt. ... , No. 8 , Dongzhou Rd , Dongjing, Songjing, Shanghai, P.R. 201619,China