TST Tire Pressure Monitoring System

have a Doran system. A sensor went bad before we left on east coast to Wyoming trip this summer. Called sent it back it was under warranty so replaced for $0. We had an extra sensor so programmed that one in and left for YS. They mailed the replacement and it was here when we got home. Last year on trip to Alaska we had one lose it's signal and Doran mailed us new ones to General Delivery in Homer Alaska. Had call to use the monitor only once on Alaska trip and not needed TG this trip. I bet our friends traveling with us wish they'd had one when they lost a wheel (not just the tire) when we were leaving the Badlands on Labor Day week end. Buy a system any system. they work!!!