Ok, so I talked to the folks at Pressure Pro and I have some answers to my questions. First of all, yes, there have obviously been some technology updates to the units since my unit was made. However, the guy I spoke with said that my unit should function just fine and that it is still compatible and would work with new sensors. But, instead of just replacing the batteries on my existing sensors I would have to replace the sensors at a cost of 35.00 each X 6 which would be 210.00 for a 8-10 year old unit with probably 3 years of use on my Dad's coach.
At that cost, I'm half way to buying a new unit such as an EEZ, TireMinder or similar units.
I hate to just discard the Pressure Pro unit, it looks to be in great shape. Not sure which way I'm going to go on this??
2017 ACE 30.3