... Weight 30 gram, DC3V,AA battery,Looks like TV control,Plastic shell (Temporarily use Money Dollar counterfeit Detector PenAs one of ... test tools available in the world now, Infrared Laser Test Pen is used for testing securities, brand, currency, certificates etc. ... from using this product. TECH DATA FOR IR CURRENCY TEST PEN NOMaterialBattery Focus Length CMCMOS chip mWCharacteristicSpec.CM/ W.GKPT- ...