Kern Refractometer analog (ATC) EG -50-0:

ORA. The Kern ORA Series portable analog refractometers. Maintenance free and designed for easy operation. With multiple selectable scales, manual conversions and operator error are eliminated. The scales are specially designed, accurately calculated and tested. They are also distinguished by their thin and clean lines. The prism cover and optical system are made of special material. Measurement with low tolerance possible. All Kern ORA models have an eyepiece. Simple and easy adjustment for many different diopter strengths. ATC models feature automatic temperature compensation Die-cast copper aluminum alloy housing with chrome plating Refractometer designed for sugar, salt, industrial/automotive or expert applications.