Hello Jean-Valéry,
the gauge has a knob to switch and imho therefore there's a description missing, no matter if a 1942 or 1940 built gauge. About 120°C or 160°C indeed I'm not shore though.
About the kmz file I first have to install Google Earth first because I've assambled a new rig recently. As soon I got GE I will comment it at Foo'rum. Thanks so long, mate!
