Replace a lost or damaged temperature probe or add a new one to your existing tool kit with this STEELMAN 60425 Bimetallic Stainless Steel Temperature Probe. The dual scale display is able to show temperature readings in both farenheit and centigrade (celsius) with two independent scales for 0-300 F and 0-150 C. This stainless steel tool has a bimetallic design that operates reliably without the need for batteries or external power and can be easily recalibrated with a wrench and a cup of ice water thanks to the hex nut on the back of the display. Replaces temperature probes used in the STEELMAN 60025 Master Cooling System Test and Purge Kit.