Anti-freeze Tester TH106

Large professional-size tester with easy-to-read magnified plastic barrel.Disc-type antifreeze tester. Professional-size (16-1/4) tester is accurate at all temperatures. Tests coolant, hot or cold. Easy-to-read discs are magnified by convex design of the clear SAN plastic barrel. Protection scale is printed in both Celsius and Fahrenheit. Special feature is the sixth disc, which shows overprotection and a loss of cooling efficiency. Optimum protection and efficiency requires about a 50/50 mix of water and coolant.