I had a Tire Tracker and had to replace sever transmitters and after a time did not trust it. I gave it away and bought a TST system. No problems after about 9 months.
Ken
Amateur Radio Operator.
2023 Cougar 22MLS, toted with a 2022, F150, 3.5L EcoBoost, Crewcab, Max Tow, FORMER Full Time RVer. Travel with a standard schnauzer and a Timneh African Gray parrot