The old suspicion showing through chaps
"my company" as in my employer, my PPL is a plank one and for fun only, S-76++ cos that's what I've been told they are. I might have got a + wrong though.
The working limits for temperatures here are -40C to +40C but over the last few winters it's rarely gone below -25C but occasionally up to +45C. Think FSU rather than North Sea.
I'm asking about the options available as I am part of a team assessing the alternatives available to us. I thought that getting info from the people at the sharp end of the industry would be a sensible thing to do. Far better than reading manufacturer's brochures and listening only to the bean counters for example.