Diamond Tester, Diamond Selector,Led Jewelry Tester Tool Kit, Diamond Tester with Professional Reading and Accuracy, Genuine Diamond Testing

Retractable thermoelectric probe tip ensures constant pressure between probe and stone Probe tip (0.6mm) for testing gemstones as small as 0.02ct Metal alarm buzzer ensures probe tip is in contact with gemstone during testing Clear and easy-to-read analog dial Can identify 16 kinds of gemstones Built-in glass and calibration test disk (CAL) for reference Specification: Power 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 Notice Due to light and display reasons, there may be color differences between the actual object and the photo, please refer to the actual object. The above data is for reference only. The size is measured manually. There may be an error of 1-3cm. Please refer to the actual product. Thank you.