High Precision Jewelry Diamond Tester, Gemstone Diamond Tester, Tests 16 Different Gemstones, Built-in Glass and Calibration (Cal) Test Disk, for Jewelry and Gemstone Identification

Specification: Power supply method: Uses 2 AA batteries or an adapter (batteries not included). Size: Length: 125 mm (4.93 inches) Width: 90mm (3.55 inches) Height: 70mm (2.76 inches) Weight: 220g Products Include: 1 x High Precision Jewelry 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.

• 【User-Friendly Interface】: Equipped with an analog dial that is both clear and easy to read, facilitating the distinction among 16 different types of gemstones.
• 【Retractable Probe】: Retractable probe's thermoelectric probe ensures that the pressure between the probe and the gemstone remains constant. The probe (0.6mm) can be used to detect diamonds as small as 0.02 carats.
• 【Accurate Data】: Professional diamond test pen comes with a metal alarm buzzer to ensure that the probe remains in contact with the gemstone during the test. Consistent and reliable test results can be obtained every time, without waiting, and it is easy to use.
• 【Effortless Calibration】: Equipped with automatic calibration, this device provides immediate, accurate readings on the purity and authenticity of precious metals without any delay between tests.
• 【Application Range】: Used for testing and measuring diamonds and gemstones, suitable for the gem industry, academic institutions, laboratories, jewelry manufacturers, diamond appraisal companies and retail jewelers.