recommendations on tire pressure monitors

Hi Don - been running TST system for almost 10 years, close to 100k miles. Dependable, great customer service, has saved me 3 times so far. As for cold weather... I pull the monitors off the stems when I park it for the winter (saves the batteries - no pressure turns them off...). Can't see any reason they wouldn't work simply due to cold - give TST a call - odds are they can answer that for you. Their system was intended for over-the-road trucks, not RV's, so those guys don't park their rigs for the winter. The one winter issue I could see is the monitors do cause the stems to extend a bit further. Not an issue on my rear duals, recessed into the dish, but on the fronts I could see where they may attract snow/slush/ice, or snag if you are driving in deep snow, etc. They do recommend metal valve stems - I had a tire shop just install regular brass truck stems up front, but went with specialty dually valve stems from Borg to mount them on the rears. ST