Specifications: 1) Easy operation and convenient use 2) UV,MG,WM detection function with magnetic 3) Alert indicator and alert beep are optional in magnetic detection 4) The magnifier size is 97*50mm,multiple is decuple 5) Install two hign quality ultraviolet tubes to make illumination more strong 6) Power source:AC220V/50Hz 7) There is a converting switch for Ultraviolet and watermark Inner packing: 1pc/box Dimensions:260*166*170mm .:1.11KGS .:1.20KGS