Features: Heavy-duty and lightweight with its aluminum construction High quality and accurate testing results are guaranteed Equipped with Built-in .....
Handheld 0-100ppt salinity aquarium ATC refractometer 1.000-1.070SG Features: Determines the amount of dissolved salt and dissolved solids Approved by ...
Handheld Ethylene & Propylene Glycol Concentration Refractometer This professional handheld refractometer measures the freezing point of automotive .....
Methanol Glass Freezing Point Instrument -50°C to 0°C Refractometer 100% new product methanol glass freezing point instrument designed for precise ......