New with box, pouch and USB wire, no manual. High quality handheld digital tester for 31 types of gemstones. Digital LED screen shows results within 6 seconds. Detects stones based on thermal conductivity and has a 12 colors input function for more accurate results. Easy to change probe tip as needed. This is an enhanced version of the Presidium Gem Tester/Colored Stone Estimator. Three AAA batteries included.