Gem Rerfactometer
Specifications
Gem refractometer is the most important and precision tool of gem identification, it can measure the refractive index fast.1. High hardness CZ test prism
2..Scale range:1.35-1.81, Acurracy:0.002 .
3.By advanced optic system,shadow edge is straight and sharp,easy to read it.
4.There are two ways of inputing the voltage:2x AAA batteries and DC3V direct current suplyAC100—240V).
5.. Appearance: white aluminum alloy;
6.. Package: one set in a color box;
7.It is much safer ,much ecnomical and more convinent.
Accessories:
1. 2x AAA batteries;
2. 2ml refringent oil;
3. power adapter.

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