What is the service life of an external tire pressure monitoring system?
2 Answers
The service life of an external tire pressure monitoring system is approximately 2 to 3 years. Below are the benefits of installing a tire pressure monitoring alarm in a vehicle: Preventing accidents: The tire pressure monitoring system is a type of active safety device that can provide timely alerts when there are signs of danger in the tires, reminding the driver to take appropriate measures to avoid serious accidents. Extending tire lifespan: With a tire pressure monitoring system, the tires can always operate within the specified pressure and temperature ranges, thereby reducing tire damage and extending their service life. When the tire pressure drops by 10% below the normal value, the tire lifespan is reduced by 15%.
I've been using external tire pressure monitors for several years and found they typically last 3-5 years, mainly depending on the battery. The model I chose uses CR2032 coin cell batteries, with an average lifespan of 3 years. Environmental factors have a significant impact—high summer temperatures or heavy rainfall can accelerate battery drain. Once during the rainy season, a sensor malfunctioned after water ingress. To prolong their service life, I regularly wipe the sensor surfaces with a dry cloth to prevent dust from clogging the valve stem, and avoid over-tightening during installation to prevent mechanical damage. If readings become erratic, it's time to check whether the battery is depleted or components are aging, replacing them promptly to ensure driving safety. Generally, cheaper models may fail in just 2 years, while quality brands last considerably longer.