This RHA - 503 ATC refractometer is designed to test concentration of battery fluids, antifreeze liquid and cleaning fluids. Compared with other battery acid refractometers, this tool has 4 scales design to measure the freezing point of Windshield Cleaning Fluid. With the indication of the percentage of concentration, you will know at which temperature of the fluid will be frozen for propylene glycol, ethylene glycol and cleaning fluids. Moreover, it can be used for checking the strength of electrolyte solution batteries in the unit of Specific Gravity. RHA - 503 ATC is built with automatic temperature compensation ( ATC ) so that the refractometer is automatically adjusted to correct temperature discrepancies of environment temperature.
Main Features: ● Sturdy and light weighted aluminum body ● Uses ambient light only which means battery or power source is not required ● Can be easily calibrated with a mini-screw driver ● High quality and accurate testing result ● Easy and very convenient to use