Portable Refractometer

INTENDED USE: determining the freezing point of ethylene glycol aqueous solutions in cooling systems in cars, trucks, etc. determination of the freezing point of water solutions of propylene glycol in cooling systems in heating/solar installations determination of the electrolyte density in lead-acid batteries, e.g. used in the automotive industry determining the concentration of ADBLUE and the freezing point of windscreen washer fluid A refractometer is a sensitive optical instrument used to test the freezing temperature of coolants and to determine the quality of the electrolyte in lead-acid batteries. The substances tested are hazardous to health, so it is absolutely necessary to avoid contact of the tested liquid with the skin. Set:Three scale refractometerSolid, comfortable case with spongePipette for taking and putting liquid on the sight glassMicrofiber cloth for cleaning the speculum and lensCalibration screwdriver