Mail Free Shipping!!! RHG700 gem refractometer gemological built-in light source Gemstone Инструменты - купить

Купить Mail Free Shipping!!! RHG700 gem refractometer gemological built-in light source Gemstone | Инструменты

 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 index. Besides, index of double of 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 popular instrument used on jewelry market. The model RHG-700 is equipped with a built-in light source. It is more convenient to test!

Noted: Reflective index oil 1.79RI is not included in standard delivery. If you need, you have to purchase it separately.
Features:

1, Identify singly & doubly gemstones quickly and accurately.

2, Uniquely designed, low battery consumption and portable

3, Approved by strict quality and safety standards for long and trouble-free life.

5, Black version and sliver version available.

Specification:
Range: 1.30-1.81RI
Minimum Division: 0.01
Accuracy: +/- 0.01 RI

Size: 115*35*63mm

Power Supply: 3pcs LR44 Button Battery  (Not included in standard delivery)

Accessories:

1, Polarizing Filter

2, Monochromatic Light Filter