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Quick Details

Place of Origin: China (Mainland)
Brand Name: BDJK
Model Number: 720
Display Type: Scale
Measuring Range: 1.30~1.81
Accuracy Class: 0.01
Voltage: 9V
Operating Temperature:
Dimensions: 30mm * 70mm * 130mm
weight: 400G

Specifications

Built-in LED Light Portable GEM Gemological Gemology Refractometer with Gift Box Product Description:

Gem Tester Refractive index is one of most important optical parameter. Gloss of gem can be estimated by the parameter.

The kinds of gem can be precisely determined in accordance with the measured value of refractive index because every kind of gem has its inherent refractive. Besides, index of double refraction can be also measured. Through the parameter you can judge whether a gem is uniaxial or biaxial photopositive or photonegative.

The gemological refractometer is characterized by small volume and less weight. It is easy to carry. It is a popular instrument used in jewelery market.

Technical Parameters:

Measuring Range:1.30 ~ 1.81

Accuracy:0.01

Dimension:30mm * 70mm * 130mm

Weight: 0.4kg (without package and accessories)