High Precision Jewelry Diamond Tester, Gemstone Diamond Tester, with Assisted Thermal Calibration, for Identifying Diamonds/Moissanites and Common Colored Gemstones

>>> Features ● Retractable thermoelectric probe tip ensures constant pressure between probe and stone ● Probe tip (0.6mm) for testing stones as small as 0.02ct ● Metal alarm buzzer ensures probe tip is in contact with the stone during testing ● Clear and easy-to-read analog dial ● Can distinguish 16 kinds of gemstones ● Built-in glass and calibration (CAL) test disk 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

• 【Simple And Easy To Use】Clear and easy-to-read analogue dial; can distinguish 16 types of gemstones.
• 【Includes Supported Thermal Calibration】Calibrate your device now easily for your test environment.
• 【Thinnest Retractable Probe Tip】With retractable probe tip. The gemstone tester has been redesigned to be more compact, robust and portable.
• 【Fast And Safe】This diamond selection tester is designed for fast, precise and safe diamond testing. No harm to diamonds.
• 【Versatile And Reliable】Consistent and reliable results every time. Identifies Diamonds/Moissanites.