Description: Made of high quality aluminum alloy, durable, lightweight Functions: Fluorescent testing, money testing, flashlights. Pocket size, waterproof. Led display screen. Can be used to inspection lamp for currency, hotel home stain detection, wine, beg bug detector, etc. Suitable for outdoor camping, hiking, fishing, backpacking, hunting, backyard, etc. Specification: Material: Plastic Display:LED White Wave:450nm Tester Range:0-99.99mg/l Purple Wave:365nm Purple Power:Less than 3mW Size:96x22x22mm/3.78x0.87x0.87inch Battery:1*AA Batteries(Not Included) Package Includes: 1 Piece Fluorescence Tester 1 Piece Battery 1 Piece User Manual Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.