TPMS Monitors

The guy I work with put all the sensors in the spare tire.
That's really smart. The TPMS is a valid safety system that will alert you to a potentially hazardous tire situation. That's about as smart as bypassing the seatbelt buzzer in case one doesn't want to wear no stinking seat belt. My TPMS has correctly warned me of low tire pressures on several occasions. I'll keep mine hooked up.