Gem Refractometer ( MG GR-02)
Negotiable /Piece
Min.Order:1 Piece
Ningbo Hongbo Optical Instrument Co., Ltd.
Gem Refractometer
High hardness CZ test prism Scale range:1.35-1.81
Error: ±0.002
Stainless steel table,easy to clean by advanced optic system,shadow edge is straight and sharp,easy to read it
There are two ways of inputing the voltage:7batteries and DC3V direct current suply(AC100240V).
2ml refractive index Liquid(1.78±0.005) with unique design of the bottle(Proprietary technology ZL200620096730.7)
It is much safer ,much ecnomical and more convinent.