Well the obvious answer is yes. But as many of them are, they measure resistance and display somewhere between C and H. As you may or may not know, a scan gage can be programed to display coolant temp in degrees. So my rather simple question was at what temperature IN DEGREES does a fail safe operation occur? As someone stated around 265. I did find a pic of a gage that was stenciled as 265 on the H side. Didn’t show the make of the vehicle though.