Digital Gem Refractometer with LED Light (1.30-1.81 RI) geiger counter offering accurate measurements of refractive

offering accurate measurements of refractive index and birefringence to help identify various gemstones

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Industrial-Grade Sensor: Offers high precision

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Digital Gem Refractometer with LED Light (1.30-1.81 RI) geiger counter offering accurate measurements of refractiveIdentify Gemstones Instantly & Accurately Our Digital Gem Refractometer is an essential tool for jewelers, gemologists, and hobbyists. It provides precise refractive index (RI) readings from 1. 30 to 1. 81, allowing you to easily and non destructively identify a wide variety of gemstones. The built in, quasi monochromatic LED light source ensures a sharp, high contrast view for clear and accurate results every time. Key Features: Wide Measurement