Totally forgot about this topic, sorry to those that asked me about certain things.

For what it's worth, the highest Temp I've seen from the CARC Unit to date is 73°C, crossing Central Spain during a heatwave, ambient temp was 43°C for a few hours.
I'll make an effort to relocate the Sensor to the Gearbox as soon as is practical for me.
Also, not wishing to start an Oil debate, but I've been using Mobil Jet II in my Gearbox and CARC Unit for nearly 30,000 miles.
Comes out as clean as it went in.
Specs far surpass any of the car/Bike Oils by a large margin.