Gemological Digital Refractometer Laboratory instruments
Specification
The Digital Gem Refractometer is much easier to use and the testing range is wider than original gem refractometer
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RI=1.30-2.99
Doesn't require the use of contact fluid,no pollution,no harmful to operator and sample
Dual-testing function:gem RI and reflectivity
Stable results without environmental impact
Error less than 0.008
Power:9V battery;working temperature:10-28 degree
Packaging Detail:
Gross Weight:1KG Net Weight:1KG Good looking paper box
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