Description
Details: This optical refractometer is designed for measuring coolant and antifreeze based on ethylene glycol or propylene glycol ,battery fluid condition and screenwash antifreeze (windshield washer fluid) based on ethanol as well as on isopropyl alcohol. Please refer to the picture of display scale(picture 5), from left to right, the first scale is for measuring the Specific Gravity of Battery Acid, the second one is for measuring the freezing point of antifreeze system based on propylene glycol or ethylene glycol, the third one is for measuring the freezing point of the windscreen cleaning liquidsral technical parameters: reference temperature 20 Centigrade ATC – automatic temperature compensation (compensation range 0 ~ 30 Centigrade) focus possibility length ~ 160 mm quality technical designContent and equipment: 1x firm plastic case 1x refractometer 1x cleaning cloth 1x suction tube 1x screw driver 1x operating instructionsNote: 1rate measurement based on good calibration, please calibrate the refractometer before your first use. 2se keep the refractometer dry and clean, which can make the instrument accurate and durable.