Gemstone Refractometer, Digital Refractometer, Jewelry Tester, Automatic Calibration, Suitable for Diamonds, Gold and Silver.

Product Specifications: Product Name: Gem Refractometer Measuring Range: 1.0-3.0 Machine Size: Approximately 140*80*50mm Net Weight: About 1029g Including Packaging Weight: About 3309g Packaging Box Size: Approximately 150*105x70mm Packaging Includes:Host*1

• Professional Gemstone Refractometer: Utilizes a microcontroller to precisely measure the quality of light reflected from cut and polished gemstones, converting intensity readings into refractive index.
• Rapid Identification: With a measurement range of 1.0-3.0, easily identifies single and double gemstones. Ideal for distinguishing diamonds, moissanite, and colored gemstones, simplifying the identification process during packaging and improving efficiency.
• Automatic Calibration: A reliable tool for quickly detecting the purity and authenticity of precious metals. Instant results without waiting, allowing you to quickly evaluate items anytime, anywhere.
• Long Lifespan: Equipped with USB fast charging for convenient use anytime. Effectively distinguishes various gemstones by refractive index, color, hardness, and specific gravity. The tested transparent gemstone has a smooth surface for easy separation.
• Service: If you have any questions, please feel to contact us and we will reply within 24 hours!