Product Name: Hand-Held Refractometer (AH Series)Model Number: RHB, RHC, RHA, RHW, RHSPlace of Origin: ChinaLumen hand-held refractometer AH series works in ambient light with no power sourcenecessary

Lumen hand-held refractometer AH series works in ambient light with no power sourcenecessary. It can be used in labs, on production lines, in the field or anywhereelse.

Features:1) Equipped with ATC (0 - 40°C, 32 - 104°F)2) Some models can test both Brix and refractive index3) Automatically shuts down after 90 seconds if no operation happensSpecifications:1

Features:1) Equipped with ATC (0 - 40°C, 32 - 104°F)2) Some models can test both Brix and refractive index3) Automatically shuts down after 90 seconds if no operation happensSpecifications:1

Features:1) Equipped with ATC (0 - 40°C, 32 - 104°F)2) Some models can test both Brix and refractive index3) Automatically shuts down after 90 seconds if no operation happensSpecifications:1

The GML-501 is a compact refractometer with built-in LED illumination for refractiveindex determination, quality control and categorization of gemstones.Specifications:1) Accuracy: 0.01nD2) Illuminati

Product Name: Gemological Refractometer (GML Series)Model Number: GML-501Place of Origin: ChinaThe GML-501 is a compact refractometer with built-in LED illumination for refractiveindex determination,

Lumen gemological refractometer GML series is built with monochromatic filter and a built-in LED light source, which is controlled by a momentary on / off switch.

The GML-501 is a compact refractometer with built-in LED illumination for refractiveindex determination, quality control and categorization of gemstones.Specifications:1) Accuracy: 0.01nD2) Illuminati