Underinflated tires cost you three ways: +3% fuel burn, faster tire wear, and 30% of highway blowouts. A €35 TPMS watches all four tires in real time.
How aftermarket TPMS works
Screw-on sensor caps replace your valve caps and beam pressure + temperature to a solar dash display. Install: 10 minutes, any car.
What the alarms catch
- Slow leaks (screw in the tread) days before they strand you
- Fast pressure loss — pull over before it's dangerous
- Overheating tires on loaded summer drives
RV or trailer? Our 7-tire RV system has a signal repeater for long rigs. Standard cars: Gearyx Guard Solar TPMS.