‘Propylenemaster’ - Takes the Accuracy of a Laboratory to the Vehicle

Ensures accurate determination of % propylene-glycol at any temperature, and indicates the amount of undiluted anti-freeze to add to obtain the correct degree of frost protection. Specific gravity range 5 - 60% A.F Accuracy tolerance ± 2% A.F Thermometer range 0 - 70°C NOT suitable for methanol or ethylene mixtures.