Original analog gold tester using the AuRACLE technology with thousands sold, Meter readout shows karat value ranges, Tests 10K, 14K, 18K and 22-24K gold in all colors and identifies platinum, Manual dial adjustment calibration using 18K yellow gold, Durable testing plate, Accessory clip for testing gold being worn, Powered by 1 AA alkaline battery (no AC power option), Includes: KEE tester, pen probe “wand”, built-in abrasive file cap, AA alkaline battery, accessory clip for remote gold testing, vinyl carrying / storage bag, 6 Month Limited Warranty on KEE Tester.