Im still old school. I like farenheit and i changed the speedo in my car to MPH. I still do MPG that other way makes no sense. Litres per 100km. As for the heat, you can have it. Rode my motorcycle to pheonix one fall, 116 degree's thought i was going to melt
and yeah they are a handy tool and have alot of applications. Mostly use it on cooling system problems.
Thats a pretty decent temp on your amps,though i sure in that climate it can put a strain on the AC
DOG is GOD spelled backwards.
I blame my terseness on my keyboard.