1Live readout for four tires
Pressure and temperature for all four tires show on one screen, with five alarm modes.
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All four tires at a glance-12%CODEcapitalone12Harfington Solar tire pressure monitor
Four external valve-cap sensors send each tire’s pressure and temperature to a dashboard display. It charges from solar or USB.
12%$26.08
Price with code · Harfington · as of 2026-10-09Code capitalone12 · 12% off
2Solar plus USB
A solar panel on top keeps it topped up, and the USB port charges it when there is no sun. It is rated IP67.
3Anti-theft nuts
Four external sensors come with four anti-theft nuts, a wrench and a charging cable.
Key specs
- Sensors
- 4 external
- Display
- Pressure and temperature
- Alarms
- 5 modes
- Charging
- Solar + USB
- Protection
- IP67
- Unit size
- 95 × 26.5 mm
Good pick if
- Your car has no factory TPMS
- You drive long trips in a van or RV
Think twice if
- You want internal sensors mounted inside the wheel
FAQ
Is there a promo code?
Yes. Enter capitalone12 at Harfington checkout when buying the Harfington Solar tire pressure monitor for 12% off.
How does it charge without sun?
Through its USB port. A cigarette lighter adapter is not included.
Can I return it?
The product page offers 30-day returns from delivery. Returns are free within the US; elsewhere you pay the return shipping.
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