Gem stone tester gem refractometer 1.30-1.81

1. Introduction of Gem stone tester gem refractometer 1.30-1.81

This item is a compact refractomete with built-in or outside illumination for the determination of the refractive index, quality control and categorization of gemstons.

2. Specification of Gem stone tester gem refractometer 1.30-1.81

Accuracy: 0.01nD

Illumination: Internal LED illumination with momentary switch or outside torch

Measurement Range: 1.30-1.81nD

Size: 30*70*130mm

Scale Division: 0.01nD

Weight: 0.7kg

Range of Application: Laboratory, Gemology

Filter: Polarizing filter

Power source: 3X1.5v button batteries

3. Pictures of Gem stone tester gem refractometer 1.30-1.81.

A. Package 1

B. Package 2

C. Structure of Gem stone tester gem refractometer 1.30-1.81

4. Warranty of Gem stone tester gem refractometer 1.30-1.81

One year from you purchase the item