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Home > Tire Pressure Monitoring System Sensor

Tire Pressure Monitoring System Sensor at 1A Auto

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Tire Pressure Monitoring System Sensor

Tire Pressure Monitoring System Sensor at 1A Auto

As of 2008, all new vehicles sold in the US were required to be equipped with tire pressure monitoring systems. There are two main types of systems used to monitor pressure: indirect and direct.

  • Indirect - instead of measuring the actual pressure in the tire, an indirect system uses the sensors in the wheel hub assemblies (usually the ABS sensor) to measure differences in wheel rotation speeds. A tire with lower pressure would be smaller in diameter and make more rotations than the same size tire with proper air pressure.
  • Direct - Each tire uses a small battery-powered sensor at the base of the valve stem to measure the amount of air pressure in the tire. This measurement is transmitted to a receiver in the vehicle. Since the sensors are battery powered, they can run out of power.

At 1A Auto, we make shopping for replacement tire pressure monitoring system (TPMS) sensors for your car, truck, SUV or van easy - we're here to help you select the right part for your vehicle! Call our customer service toll free at 888-844-3393 if you have any questions about our TPMS sensors, warranty, compatibility or to purchase, or you can buy online.


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For more than 50 years, the Green family has been installing and using the same high quality auto parts that you'll find on our website. We actually use the parts we sell, and we've been selling online since 1999. Our company's mission is to make your car projects go smoothly, and to become your trusted source for auto parts. To this end, we treat our customers like family.

We employ USA based, knowledgeable support technicians. They'll help you through your project. We always make sure you get the right part. And we boast the industry's most generous returns policy. You won't find a company more passionate about auto parts than 1A Auto.
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