This gem analyzer combines a darkfield loupe with a focusable lens, a polariscope with a rotating platform and an immersion cell. It is supplied with a small flashlight.

Product Name: Hand Held Polariscope (Gem Instrument)Place of Origin: ChinaThis gem analyzer combines a dark field loupe with a focusable lens, a polariscope with a rotating platform and an immersion c

All kinds of traditional hand held refractometer from sinoptics at high quality and best price!Traditional portable refractometer is professionally designed for testing the concentration of many kinds

The model is designed to measure concentration in many kinds of liquids related sugar, such as fruit juice, canned food, condensed milk, liquid sugar and jam. With convertible two scales, its measurem

The model is designed to measure concentration in many kinds of liquids related sugar, such as fruit juice, canned food, condensed milk, liquid sugar and jam. With convertible three scales, it has lar

Product Name: Hand Held RefractometerModel Number: RHB0-80Place of Origin: ChinaThe model is designed to measure concentration in many kinds of liquids related sugar, such as fruit juice, canned food,

Product Name: Hand Held RefractometerModel Number: RHB0-90Place of Origin: ChinaThe model is designed to measure concentration in many kinds of liquids related sugar, such as fruit juice, canned food,

Product Name: Hand Held RefractometerPlace of Origin: ChinaTraditional portable refractometer is professionally designed for testing the concentration of many kinds of solution listed as following: ju

The model is designed to measure concentration in many kinds of liquids related sugar, such as fruit juice, canned food, condensed milk, liquid sugar and jam. With convertible three scales, it has lar