Pvxa Digital Gemstone Refractometer with Large LCD Screen, Jewelry Tester Identification Tools, Refractive Index 1.300-3.000, with 700mAh Battery, for Jewelers

Pvxa

✅【GEMSTONE IDENTIFICATION TOOL】The gemstone refractometer is composed of high-sensitivity sensors and LCD screens.It can measure the refractive index value of gemstones non-destructively and accurately,and can determine other optical characteristics of gemstones ✅【PRECISE MEASUREMENT】This Digital Gemstone Refractometer refractometer built-in high-precision sensor covers a measurement range of 1.300-3.000, Digital Gemstone Refractometer meeting the identification needs of most common gemstones and providing quantitative data to support identification results. The measurement error is as low as ±0.005. ✅【CLEAR READING】Digital refractometer features a large LCD screen, the device ensures excellent readability even in low-light conditions.Powered by a rechargeable 700mAh lithium battery, it supports up to 10,000 measurements per charge ✅【EASY TO USE】Professional Digital Refractometer for Gemstones，No need to use refractive oil, just bring the sample close to the measuring platform to measure. Based on this parameter, you can tell whether the gemstone is uniaxial or biaxial. In addition, it is equipped with two calibration blocks of 1.487 and 1.806, which need to be calibrated before measurement to ensure the accuracy of the measurement results. ✅【WIDE APPLICATION】Refractometer Jewelry, Designed for measuring the refractive index of gemstones and various solid materials, it can quickly and accurately identify single crystal gemstones, twin crystal gemstones, diamonds and various colored gemstones. It is widely used in jewelry appraisal institutions, gem processing factories, collectors and other scenarios.