Gem Tester Diamond kit Jewelry Gemstone Tester Thermal Conductivity Meter High Accuracy Pen Professional Selector Diamond Detector Precious Metal Verifier

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

• ✔The gemstone tester uses the principle of thermal conductivity to help distinguish diamonds and other imitations. It is equipped with a clear and easy-to-read analog dial to help users distinguish 16 common gemstones.
• ✔ The retractable thermoelectric probe head ensures that the pressure between the probe head and the gemstone remains constant. The probe head (0.6mm) can be used to detect diamonds as small as 0.02 carats.
• ✔ The metal alarm buzzer ensures that the probe head maintains contact with the gemstone during testing. Get consistent and reliable test results every time, no waiting, and easy to use.
• ✔ Built-in glass and calibration (CAL) test disk to assist thermal calibration.
• ✔ Used to test and measure diamonds and gemstones, suitable for the gem industry, academic institutes, laboratories, jewelry manufacturers, diamond appraisal companies and retail jewelers.