Thexton 107 Cold-Chek Anti-Freeze Tester

* Professional (16 1/4") disc-type tester is used to test propylene glycol-based antifreeze in automotive radiators and fresh-water systems in RVs and boats
* Number of floating discs measures level of protection
* Temperature compensating tester is accurate whether coolant is hot or cold
* Readings in Celsius and Fahrenheit