タイトルまたは説明

              
                  Gem refractometer with outside light 1.***1.*1
 

1. Introduction of Gem refractometer with outside light 1.***1.*1

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

2. Specification of Gem refractometer with outside light 1.***1.*1
 

Accuracy: 0.*1nD
Illumination: Internal LED illumination with momentary switch or outside torch
Measurement Range: 1.***1.*1nD
Size: *0**0***0mm
Scale Division: 0.*1nD
Weight: 0.7kg
Range of Application: Laboratory, Gemology
Filter: Polarizing filter
Power source: 3X1.5v batteries