Gemstone Refractometer Tester, Digital Jewelry Tool for Authenticity, Measures Refractive Index 1.300-3.000, Error ±0.005, for Gold, Silver & Diamonds

Gemstone Refractometer, Jewelry Tester Identification Tools with Large LCD Backlight, Error: + -0.005/accuracy: 0.001/Refractive Index 1.300-3.000, for Test JewelryFeatures:- No Oil & Effortless : Skip the messy refractive oils! Simply place your gem or solid sample onto the measurement platform for a fast, clean, and contactless reading.- Lab-Grade Accuracy : Features a high-precision sensor delivering measurements from 1.300 to 3.000 with an impressive accuracy of ±0.001 and error margin of only ±0.005.- Portable : Crafted from lightweight yet rugged high-strength aluminum alloy (only 250g / 0.55 lbs), it withstands scratches, corrosion, and fieldwork.- LCD Display : The bright backlit LCD display ensures clear readings anywhere.- Long-Lasting & Efficient: Powered by a 700mAh battery providing approximately 200 measurements per charge.Specifications:Product name: Digital Gemstone RefractometerMeasuring Range: Refractive Index 1.300–3.000Error: ±0.005Accuracy: 0.001Battery Type: Lithium Battery (700mAh)Battery Life: Approx. 10,000 testsProduct Dimensions: 13.5*7.8*2.4 cm(5.31*3.1*0.94inch)Package Size: 18*15*7 cmGross Weight: 655gPacking list:1 * Gemstone RefractometerNotes:1.Due to manual measurement, the size error is 1-3cm. Errors may occur, please refer to the actual product.2.Due to shooting and environmental reasons, the color is subject to the actual product.

• 【JEWELRY TESTER IDENTIFICATION TOOL】It is the most important tool for gem identification, and can measure the refractive index value of gemstones non-destructively, quickly and accurately
• 【LCD SCREEN FOR 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
• 【EXCELLENT ALLOY MATERIALS】Crafted with hard aluminum alloy for scratch-proof work platforms,this gem tester provides stable support for precision testing. It is equipped with an ABS engineering plastic power switch and built-in triple insulation protection to effectively block the risk of leakage
• 【SIMPLE AND PRECISE MEASUREMENT】Jewelry Authenticity Tester measuring range: refractive index 1.300-3.000.a measurement accuracy of up to 0.001, a measurement error of ±0.005
• 【WIDE RANGE OF APPLICATIONS】Quickly and accurately identify single and double gemstones, diamond colored gemstones,designed for measuring the refractive index of gemstones and solid materials