Features: This is Electronic Diamond Tester a portable electronic device for distinguishing real diamonds from other simulated stones. It is designed for quick, precise, and safe diamond testing, simple calibration for stones of various sizes. With LED light and audio result indication Accurate and reliable reading, with a metal alert, a testing platform for loose stones Come with One mini jeweler’s loupe with 60X magnification The loupe built-in LED and fluorescence lights for normal illumination and currency detection, Easy focus adjustment.Can be used for jewelry, gemstone, document, and currency authentication. Specifications: 1. Diamond Tester Color: Grey Dimensions: 160*42*22mm Testing Capability: Diamonds, Diamond simulation (e.g. CZ), Metal Auto Off: " N/A Initial warm-up: ~ 20 sec. Indicator: Audio and LED lamps Power: 1 x 9V Battery (included)2. 60X Loupe Color: Silver Size: 40 x 35 x 20 mm Magnification: 60X Illuminated: by LED and ultraviolet lamp Powered: by 3 LR1130 button batteries (included) Used for: industry, circuit board, printing, medicine, coin and stamp, education and so on Package Included: 1 x Diamond tester(battery not included) 1x 60X jeweler's loupe(battery not included) 1 x Testing platform 2 x Carrying case 2 x User's manual Professional diamond selector for accurate testing Utilizes large and small switches for testing diamonds Emits audible sounds to easily differentiate readings LED light and audio result indication for clear results Includes a mini jeweler’s loupe with 60X magnification