Digital PG-Chek CelsiusMeets ASTM D3321-12 Standard test method for field test determination for the freezing point of aqueous engine coolants.Why take chances? For precise reading of Propylene Glycol coolant concentration, hydrometers just don't measure up.The Reichert Digital PG-Chekaccurately and effectively tests Propylene Glycol coolant Freeze Point, Boiling Point, and % Concentration. This fast, simple test provides greater peace of mind for customers while increasing your service business.Our fast, accurate digital tester performs three critical tests on the engine coolant:Measures Freeze Point of PG coolantMeasures Boiling Point of PG coolantMeasures % Concentration of PG coolantFire Sprinkler Systems: Our tester can be used to measure the concentration of antifreeze formulation in wet fire sprinkler systems.Get dependable digital accuracy in a three-in-one tool!Our fast, accurate digital tester performs three critical tests on the engine coolant:Measures Freeze Point of PG coolant: The Reichert digital PG-Chek's Automatic Temperature Compensation (ATC) provides immediate, accurate, and direct readings at ASTM D3321 standard of +/- 0.55 degree C. This ensures that the coolant has a low feezing point, so there are no engine block or radiator freeze-ups when the vehicle is not in operation during the cold winter months.Measures Boiling Point of PG coolant: The engine coolant raises the boiling point of water in a vehicle's cooling system. This guards against boil-overs, engine break-downs, and ensures that the cooling system is operating at peak efficiency.Measures % Concentration: Measures the exact concentration of the Propylene Glycol and water mixture to ensure the engine coolant is at the correct chemical specification. Detects for over-concentration or under-concentration of the coolant - either scenario will cause damage to engine components. ... Show More Show Less