Optical Handheld Refractometer, Eclipse Starch, Bellingham + Stanley.
Professional grade optical handheld refractometer with clear field of view and large rubber handgrip for easy measurement in harsh environments. Made in UK. IP65 rated against moisture ingress.
The 0-30 Starch scale refractometer can be used at an industrial level, useful for testing starch solutions used for coatings within the paper industry. This particular refractometer can be zeroed with distilled water.