Triplett RFT55 Ethylene/Propylene Glycol Refractometer

The Triplett RFT50 (°C) Portable Battery Coolant/Glycol Refractometer measures the freezing point of Propylene/Ethylene Glycol and Battery Acid specific gravity. It requires only 2 to 3 drops of solution for accurate measurement. ATC automatically compensates for ambient temperature changes from 50° to 86°F (10° to 30°C). Easy calibration with distilled water. Includes screwdriver, cleaning cloth, pipette and case.