Portable Jewelry Refractometer - LCD Digital Gemstone Tester for All Stones, Refractive Index 1.300-3.000 / Error: ±0.005 / Accuracy: 0.001, Rechargeable Lab Refractometers

★ Product Introduction:Jewelry Refractometer, Digital Gemstone Refractometer For All Stones, Error ±0.005, Accuracy 0.001, Refractive Index 1.300-3.000, For Test Jewelry. Can Measure The Refractive Index Value Of Gemstones Non-Destructively.★ Product Advantages:1. Aluminum Alloy Tabletop - Made Of Aluminum Alloy, Anti-Scratch, Anti-Corrosion, Long Service Life2. Abs Power Switch - Abs Insulation Material To Prevent Power Leakage, Safe To Use3. Large Lcd Screen With Backlight Design, Clear And Bright, Comfortable To Watch★ Products Specifications:Measuring Range: Refractive Index 1.300-3.000Measurement Error: ±0.005Measurement Accuracy: 0.001Battery: 700ma Rechargeable Lithium Battery, Long Service Life,Product Size/Weight: 13.5x7.8x2.4cm/0.8kg★ Packing List:Aluminum Alloy Suitcase*1Gemstone Refractometer*1Tweezers*1Calibration Block*2English Manual*1

• ★ Working Principle: The Working Principle Of The Gemstone Tester Is To Measure The Refractive Index Of The Gemstone, The Refractive Index Is A Very Important Optical Parameter, According To This Parameter Can Determine The Characteristics Of The Gem.
• ★ Core Advantages: Jewelry Refractometer Has Made Of Aluminum Alloy, Anti-Scratch, Anti-Corrosion, Long Service Life; Abs Power Switch Insulation Material To Prevent Power Leakage, Safe To Use; Lab Refractometers With Large Lcd Screen With Backlight Design, Clear And Bright, Comfortable To Watch.
• ★ Precise Measurement: Digital Gemstone Refractometer For All Stones Measuring Range Is Refractive Index 1.300-3.000, Measurement Error Is ±0.005, Measurement Accuracy Is 0.001, Is Your Best Helper.
• ★ Small Size and Light Weight: Digital Gem & Glass Refractometer Is Small Size And Light Weight, Equipped With An Aluminum Alloy Suitcase For Easy Carrying, 700ma Rechargeable Lithium Battery, Long Service Life. Jewelry Calibration Test Tool For All Kinds Of Gemstones, Jewelry, Etc.
• ★ What You Get: Complete Refractometer Package Including Aluminum Alloy Suitcase*1, Gemstone Refractometer*1, Tweezers*1, Calibration Block*2, English Manual*1. Simple Operation And Easy To Use.