Including Microscope Dichroscope Spectroscope Filter Ldentification Refractometer for Gemologists' Travel/Portable Lab Suitcase.

Features: 1. Specially designed for measuring the refractive index of and solid materials. 2. Lightweight and compact, easy to carry. 3. This refractometer features high accuracy and easy 4. Identify single and double quickly and precisely. 5. Low battery consumption for long service time. 6. Approved by strict quality and safety standards for a long and trouble- using. Specification: Condition: Brand New Item Type: Refractometer Material: ABS Refractive Index Range: 1.30-1.81 RI Color: As Pictures Shown Size: Approx. 13 * 6 * 3.5cm/5.1 * 2.4 * 1.4inch Weight: Approx. 721g Package List: 1 * Refractometer 1 * Electric Torch (Powered by 1 * AA battery which is NOT included)) 1 * English Manual 1 * 3 ML Reflective Index Fluid

• Quick identification: Quickly and accurately identify single and double . Helps identify , and colored , speeds up the identification of in the package, does not require RI liquids, and results in uniform and results each time, with a clearly visible display for easy reading measurements.
• Specially designed: This refractometer is designed to measure the refractive index of and solid materials. Many people think that refractometers are the most important of all test instruments. The primary use of a refractometer is to measure the angle at which light is bent or refracted through a stone.
• low battery consumption and long service life. The possible continue to be eliminated by values ​​such as R.I., Color, Hardness and S.G. The transparent is tested and the is polished flat, which is very suitable for separating .
• High precision, compact and easy to carry: The refractometer is highly accurate and easy to operate. Lightweight and compact, it is easy to carry. It provides important recognition as it differs from to . The refractometer is also one of the few instruments that can provide you with information on opaque and transparent .
• after-sales service: We are committed to serving our customers wholeheartedly. Your feedback is the driving force for our improvement. We look forward to your comments. If you have any questions about our products, please feel to us. We will do our best to meet your requirements and solve your problems quickly and efficiently.