Hi all, Just got back from our first trip using our new TST 507 tire pressure monitoring system. It was great and all worked well. I parked my coach at the storage facility and left the TPMS on the ...
I have the TST 507 system, and leave all sensors on the motorhome and toad all the time. I have removed the security covers so that changing the batteries is easy. When I get the first low battery signal, I change all 10 batteries. I get 8 to 12 months between battery changes, and the batteries cost about 25 cents each.
I use the Tianqiu 1632 battery, available from ebay for $4.95 for a package of 20.