IR Infrared laser detector 980nm wavelength,100mW 2 pcs x AAA batteries Multi currency detection Portable,Copper material INFRARED ( IR ) LASER TEST PEN As ... advanced Anti-Counterfeit test tools available in the world now, Infrared Laser Test Pen is used for testing securities, brand, currency ... Bule14.5X diameter 1.3 35GCopperAAAX22-3<100Color Bule IR infrared money detector