Professional Gemstone Refractometer, Refractometer Jewelry, Professional Digital Jewelry Tester, Measurement Error ±0.005, Type-C Interface, For Gem Identification In Jewelry Shops Personal Use

LHUITUI

【Precise Measurement】 Utilizing the principle of total internal reflection and equipped with a high-precision sensor, the measurement range covers 1.300-3.000, with a measurement error of ±0.005 and an accuracy of up to 0.001. It can acquire gemstone optical data non-destructively, providing scientific and reliable quantitative support for jewelry identification. Both professional gemologists and enthusiasts can obtain accurate results. 【Easy Operation, No Oil Required】 Say goodbye to the cumbersome steps of using refractive oil with traditional refractometers. Simply place the polished gemstone against the measurement platform to quickly determine its crystal structure (uniaxial or biaxial). With 1.487 and 1.806 calibration blocks, pre-measurement calibration is even more convenient. 【Clear Readings, Long Battery Life】 Equipped with a large backlit LCD screen, data can be clearly read even in low-light environments. The built-in 700mAh rechargeable lithium battery supports up to 10,000 measurements on a single charge. The Type-C interface is compatible with mobile phone chargers. The digital gemstone refractometer provides stable output whether in the laboratory, jewelry store, or field for identification. 【Durable and Portable Design】 Weighing only 250 grams, its compact size makes it easy to carry. The high-strength aluminum alloy shell is scratch-resistant and corrosion-resistant, and it features an ABS engineering plastic insulated switch and triple insulation protection to effectively prevent leakage risks. The professional gemstone refractometer balances portability and safety, providing stable and durable hardware for precise measurements. 【Wide Compatibility, Suitable for Multiple Scenarios】 Specifically designed for measuring the refractive index of gemstones and solid materials, it can quickly and accurately identify single-crystal, twin-crystal gemstones, colored diamonds, moissanite, and various natural and synthetic gemstones. Suitable for jewelry appraisal institutions, gem processing plants, collectors, and other scenarios.