Mine doesn't have degrees on it, but better than that, it can be adjusted such that the handle being in the neutral position (vertical in this case) is at whate

Mine doesn't have degrees on it, but better than that, it can be adjusted such that the handle being in the neutral position (vertical in this case) is at whatever temperature you want. I set mine to 39°C which is what most people seem to enjoy. Turn it left gets you as cold as the cold supply. And then you can set a soft limit with a positive detente at some higher temp, which I have set to 42°C of course. So that you don't go overboard when turning right. And above that soft limit, you can also set the maximum temp, which I have set to 45°C. And the valve will shutoff if the temperature still manages to go above that.