Jewelry Diamond Detector, Moissanite Diamond Tester, Can Test 16 Gemstones/Built-in Glass and Calibration (Cal) Test Disc, for Jewelry Stores

Retractable thermoelectric probe tip ensures constant pressure between probe and stone Probe tip (0.6mm) for testing small gemstones of 0.02ct Metal alarm buzzer ensures that the probe tip touches the jewelry during testing. Clear and easy to read analog dial. 16 different jewels can be identified. Built-in glass and calibration test disc (CAL) for reference Specifications: Power Method: Use 2 x AA batteries or adapter (battery). Not Included). Size: Length: 125 mm (4.93 in) Width: 90 mm (3.55 in) Height: 70 mm (2.76 in) Package Content: 1 x Gemstone Diamond Tester NOTE Due to lighting and display reasons, there may be color difference between the actual object and the picture, please refer to the actual object. The above data is for reference only. The size is measured by hand. There may be 1-3cm error. Please refer to the actual product. Thank you!

• 【Retractable Probe Tip】The jewelry tester adopts a retractable probe tip and is redesigned to be more compact, sturdy and portable. Automatic Calibration: The perfect tool for quickly and accurately testing the purity and reliability of precious metals. You can get instant results without waiting between tests,