Digital Gemstone Refractometer,Jewelry Tester Identification Tools,Digital Refractometer,Measurement Error: ±0.005 / Accuracy: 0.001,Refractive Index 1.300-3.000,Gemstone Tester for All Stones

Digital Gemstone Refractometer,Jewelry Tester Identification Tools,Digital Refractometer,Measurement Error: ±0.005 / Accuracy: 0.001,Refractive Index 1.300-3.000,Gemstone Tester for All Stones

• 【Premium Construction Materials】: The diamond tester is crafted with hard aluminum alloy for scratch-proof work platforms, this instrument delivers robust structural integrity. This gem tester is enhanced with ABS engineering plastic power controls and triple-layer internal insulation, it ensures secure protection against electrical hazards.
• 【Clear Visual Reading】: Digital refractometer is featuring a large LCD screen with backlight illumination, a high-sensitivity sensor, and intelligent electronics, 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.
• 【Test Method】: Gemstone tester index testers do not oil is required, just bring the sample's measuring surfaces close to the measuring platform to measure. Based on this parameter, you can determine whether the gem is a uniaxial crystal or a biaxial crystal.
• 【Total Internal Reflection Technology】: Gemstone refractometer is utilizes fundamental optical principles where refractive index values serve as definitive indicators for material identification. Each reading provides reliable gem characteristic data.
• 【Wide Compatibility for Various Gemstones】: Gemstone identification tester suitable for both uniaxial and biaxial crystals, this jewelry calibration test tools quickly and accurately identifies single and double gemstones,including moissanite, diamond, colored gems, natural or synthetic stones, minerals, and other solid materials. This digital refractometer is designed for measuring the refractive index of gemstones and solid materials. A must-have for gemologists and serious collectors.