Gator Cable Portable Diamond Gemstone Tester Meter Selector Illuminated Jewelry Testing Tool Pen Battery Powered Portable Tough Rugged Durable Heavy Duty Color: Black Specifications: Dimensions: 6.5" x 1.5" x 0.90" (L x W x D) Weight: 5oz Testing Capability: Diamonds / Manufactured Diamonds / Zirconia Gemstone / Gem / Precious Stones Color: Black Auto Off: On / Off Initial warm-up: about 20 seconds Indicator: Audio and LED lamps Power: 1 x 9V battery (not included) Features: This Electronic Diamond Tester Device will 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 testing platform for loose stones Diamond tester is equipped with convenient carrying cases. Easy to Use: If the diamond is fake, it will not display and make any sound. If it is a real diamond, there will be a light-up indication. Fastest Effect: Display indicator, large / small switch for testing diamonds +/ - 8 points, metal alert (When a user accidentally hits the metal rather than stone will sound). Precise Stone Testing: This gemstone testing device is not only a diamond tester, but also a multi gemstone tester. It can detect if a gemstone is real or fake, including: diamond, sapphire, ruby, crystal, agate, jadeite, and other precious stone of various sizes. Instrument Configuration: This diamond tester pen comes with a vinyl carrying case and small testing tray for holding loose stones. How To Test Gemstone Turn switch on. Make sure only 1 light is lit up on the device. Wait a few seconds for the pen to heat up until the OK light ON is ready. Turn on the lights numbers corresponding to the indoor temperature and diamond weight. If you don't know. Set 4 lights to lighting up on the scale. Start testing diamond, no need to adjust the switch. Use the diamond testing probe to make a 90-degree contact with the measured stone, and observe the indicator light change. It may need a little bit of force to secure it on the diamond surface and make a full contact. If unsuccessful, please repeat the second step. Included In Package: 1 x portable diamond tester (V2) 1 x vinyl carrying case 1 x testing platform 1 x User's manuals We Offer The Lowest Prices for OPTIMUM Quality Cables + Free Shipping On All USA Orders! BUY 4 OR MORE GATOR CABLES GET FREE U.S. PRIORITY MAIL SHIPPING ALL ORDERS ARE SHIPPED OUT WITHIN 1 TO 8 HOURS! Ultra Fast - FREE Shipping Worldwide Shipping From USA to All USA International Shipping No Waiting 3 to 4 Weeks Portable Diamond Gemstone Tester Selector Illuminated Jewelry Testing Tool Strong-Rugged-Durable Heavy Duty CLICK ON OUR STORE