Jewelry Tester Identification Tools,Gemstone Refractometer with LCD Screens, Refractive Index 1.300-3.000,for Jewelry and Diamond

Product description Gemstone Refractometer, Jewelry Tester Identification Tools with Large Lcd Backlight, Error: + -0.005/accuracy: 0.001/Refractive Index 1.300-3.000, for Test Jewelry Features: 1. Large LCD screen with backlight design, comfortable viewing, bright and clear effect. 2. Aluminum alloy table, made of hard aluminum alloy, sturdy . 3. ABS power switch, ABS insulation material to prevent power leakage. Specifications: Measuring range: refractive index 1.300-3.000 Measurement error: + -0.005 Measurement accuracy: 0.001 Product Size: 13.5x7.8x2.4cm(5.31x3.1x0.94inch) Net weight: 0.8kg(1.76lbs) Package Size: 16x12x4cm(6.3x4.72x1.57inch) Gross Weight: 1kg(2.2lbs) Products include: Gemstone refractometer x 1

• 【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. Refractive index test range 1.300-3.000
• 【Test Method】:No refractive 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
• 【High Quality Materials】: The gem refractometer uses hard aluminum alloy to create a work surfaces, which is scratch-resistant and sturdy, providing 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
• 【Working Principle】: The working principle of the refractometer is based on total internal reflection. The refractive index is a very important optical parameter, and the characteristics of gemstones can be determined based on this parameter
• 【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