Specifications

Gem Digital Refractometer

The Digital Gem Refractometer is much easier to use and the testing range is wider than original gem refractometer, besides, the refractive index liquid is not necessary.

R.I.and R.F.Display Switch

On testing status,press TEST BUTTON UNTIL”04”appears on the LCD.You can switch between refractive index and reflective index.RI or RF flag and temperature(te)is displayed on the left corner of the LCD 

Battery Replacement

When digit on the LCD is flashing,replace the battery.Open the bottom cover to replace the battery. 

Specifications

RI Test Range from 1.400 to 3.000

Power Input:9V Battery

Working Temperature:10-28 degree