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The VALUE COLLECTION KP74477 is an antifreeze and coolant refractometer designed for testing the concentration and freeze-point protection of cooling system fluids. Technicians use it to quickly determine whether a coolant mixture provides adequate protection for the operating environment. The instrument works by measuring how light refracts through a fluid sample, translating that reading into a freeze-protection temperature value. It is a compact, handheld tool suited for HVAC technicians, automotive service professionals, and fleet maintenance crews who need fast, reliable coolant condition checks in the field or shop.
This refractometer is used wherever antifreeze or coolant mixtures need to be verified before or after service. Typical applications include checking radiator and hydronic heating system coolant, verifying glycol concentration in chilled-water and heat-pump loop systems, and confirming freeze protection in equipment exposed to low ambient temperatures. It is well suited for residential and light commercial HVAC work as well as general mechanical maintenance.
Designed as a general-purpose antifreeze and coolant tester compatible with standard ethylene glycol and propylene glycol-based coolant mixtures used in HVAC and mechanical systems.
No installation is required for this handheld instrument. Before use, ensure the prism surface is clean and dry, then place a small fluid sample on the prism and close the cover plate before reading. Calibrate the refractometer periodically using distilled water per the manufacturer instructions. Keep the optical lens clean and protected from impact to maintain reading accuracy.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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