Jewelry Diamond Detector and Tester Pen,Moissanite Diamond Tester, 16 Types of Gemstones Can Be Tested/Built-in Glass and Calibration (Cal) Test Disc,for Jewelry Shop

Features:Metal alarm buzzer ensures probe tip is in contact with gemstone during testingClear and easy-to-read analog dialCan identify 16 kinds of gemstonesBuilt-in glass and calibration test disk (CAL) for referenceproduct informationPower supply method: Use 2 AA batteries or adapter (batteries not included).size:Length: 125 mm (4.93 inches)Width: 90mm (3.55 inches)Height: 70mm (2.76 inches)Products include:1 x gem diamond tester

• ✔【Professional 】Adopts assisted thermal calibration technology to help you quickly identify diamonds and moissanite from other fake gemstones. Retractable probe tip measures weights as small as 0.02 carats.
• ✔【Automatic Calibration】perfect tool to quickly and accurately test the purity and authenticity of precious metals. It gives you instant results without waiting between tests, so you can easily and quickly evaluate your projects anytime, anywhere.
• ✔【Quick Results】diamond testing machine is designed to provide fast and accurate results, with a 180° multi-view indicator needle, no warm-up time is required before testing, you will know if there is a fake within seconds, so can quickly and efficiently Test work.
• ✔【Power Supply Method】Our diamond test pen is specially designed to improve efficiency. This device comes with multiple power sources, making it perfect jewelry tester. It can powered by AAA batteries (batteries not included).
• ✔【Wide Application】It is also an tool for testing and accurately detecting and analyzing jewelry when you go to garage sales, flea markets, swap meets to sell diamonds, moissanite, stamps, jewelry or for classroom assessments, education, etc.