Met some people at the Redwood Rally that had their entire fiber glass side destroyed by an exploding tire so decided to go for a TPMS.
Made a lot of research and found the TST (Truck System Technologies) system with the number 507RV.
Got the main unit, ten sensors and a repeater.
We have rubber valve stems on the truck so decided for the lighter non flow through sensors.
The 507 offers sensors that you can replace the batteries and we think that is smarter. Repeater really not needed but for $53 extra we decided to go for it.
All reviews we read said TST has exceptional service and that is true!
We did some trouble shooting over the phone and realized that the main unit was not working properly. TST had a new one shipped out and we had it within 36 hours!
New one worked perfect and the system is highly recommended.
Nice to know if one out of our ten tires is getting to warm or looses pressure.
Easy to mount head unit and programming takes 3 minutes.
Buy direct from them - you really get good service!