4 in 1 Car Automotive Refractometer Antifreeze Battery Fluid Refractometer Glass Freezing Point Water Coolant Tester

Description The instrument can measure the antifreeze and glass cleaning agent freezing point the proportion of lead acid battery electrolyte Temperature compensation device is included to ensure the measurement is simple and convenient to ensure accurate measurement in the 10oC 30oC ambient temperature The basic principle is to use the total reflection critical angle method to measure the refractive index of the solution and then calibrate the measured liquid concentration and its performance Because of its principle of reliable accurate to meet the actual needs there are small size light weight handsome in appearance easy to use it is widely used in the automotive industry Specification Ethylene Glycol 50°C 0°C 0 70 Propylene Glycol 50°C 0°C 0 70 Resolution Factor 5°C 5 ATC Temperature Compensation Range 10°C 30°CField of View Description Intermediate scale ETHYLENE GLYCOL Ethylene glycol antifreeze freezing point PROPYLENE GLYCOL Propylene glycol type antifreeze freezing point Left scale BATTERY FLUID Battery liquid specific gravity 1 15 1 20 to be charged1 20 1 25 power enough1 25 1 30 sufficient powerRight scale glass cleaning solution freezing pointPacking includes 1 x Automotive Refractometer