Tire pressure monitoring (TPMS)

TPMS has been federally required on new cars since 2007. If your vehicle is older, an aftermarket TPMS kit catches slow leaks before they become flat tires on the highway. External sensors screw onto the valve stems in five minutes. Internal sensors require a tire shop visit.

External sensors are the right call for most people: quick install, no special tools, easy to move between vehicles. The trade-off is a slightly larger valve stem cap that is theoretically more steal-able (in practice this is almost never an issue). Internal sensors look cleaner but cost more in install labor than the sensors themselves.

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Top pick

Tymate M12-3

Tymate · M12-3
~$60

External sensors, solar dash display, five-minute install. The most popular budget TPMS for a reason.

Why we picked it

Four wireless sensors screw onto your existing valve stems in under five minutes. The solar-powered display sticks to your dash and never needs charging. Catches slow leaks days before they become flat tires. The right starting point for almost any owner.

Watch-outs

External sensors are slightly larger than stock valve caps. Anti-theft locking nuts are included.

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Fobo Tire 2

Salutica · Fobo Tire 2
~$110

Bluetooth TPMS that reports to your phone. No dash unit needed.

Why we picked it

Pairs to a phone app over Bluetooth so there is no dash unit to find a home for. The app handles alerts in the background even when closed. Best fit if you already use CarPlay or Android Auto for navigation (less clutter on the dash).

Watch-outs

Phone-dependent. If your phone is not in the car, you do not get alerts. Bluetooth range is fine but not infinite.

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Steelmate TPMS Pro

Steelmate · TPMS Pro
~$150

Internal-sensor TPMS for a fully OEM-look install. Sensors hide inside the tire.

Why we picked it

Internal sensors mount inside the tire (same as factory TPMS). No visible aftermarket valve caps, no possibility of someone unscrewing them. Sensors are powered by replaceable batteries that last 5-7 years.

Watch-outs

Requires a tire shop to dismount each tire for sensor install. Add $20-40 per tire in shop labor. The right call for someone who really cares about OEM aesthetics.

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