Measures Concentration of Coolant Mixture in Engine
![Coolant and Battery Refractometer](/-/media/images/gates/products/automotive/tools-and-sales-aids/professional-tools/3-coolant-battery-refractometer1_kit_a.jpg?la=en&hash=AD8DF468D34A96245AE301790DA2DCE4B3C2240D)
Place small sample of coolant on lens, then hold lens up to light source. Light bends through liquid, providing an accurate reading on scale.
- Measuring coolant concentrations is essential to cooling system maintenance
- Most technicians use hydrometers to test coolant concentration via gravity or floating ball scales
- Hydrometers must be temperature corrected, and may give false readings when testing new, propylene-based coolants
- Gates refractometer automatically corrects for temperature on both types of coolant (ethylene and propylene glycol) while measuring battery charge levels
Part Number: 91001