How many years can an external tire pressure monitoring system last?
3 Answers
An external tire pressure monitoring system can last 2 to 3 years. When the battery runs out, the system will stop working, but it can be used again after replacing the battery. The principle of the external tire pressure monitoring sensor is to use a plunger to push open the valve core, and the air pressure impact received by the sensor is the internal tire pressure. The sensor cleverly uses the thread of the fixed dust cap to secure it to the valve stem. Direct tire pressure monitoring systems can provide more advanced functions, measuring the actual instantaneous pressure inside each tire at any time, making it easy to identify the faulty tire. Indirect tire pressure monitoring systems are not as accurate as direct systems and cannot determine the faulty tire at all. Moreover, system calibration is extremely complex, and in some cases, the system may fail to work properly, such as when the tire pressure of both tires on the same axle is low.
I've had an external tire pressure monitoring system installed for over two years now, and it's been quite convenient. But based on experience, these usually last only three to five years at most. It mainly depends on the battery life—most are lithium-based. Daily use, especially with frequent driving or exposure to harsh weather conditions like intense sun or heavy rain, can drain the battery faster, possibly requiring replacement in one or two years. Mine has seen a lot of highway driving, so it's worn out a bit, and after nearly three years, the signal is starting to weaken. I recommend regularly checking the battery status and verifying the actual tire pressure every few months to avoid false alarms due to aging. Also, during installation, don't overtighten it to avoid damaging the valve stem, which can help extend its lifespan. Remember, tire pressure monitoring is crucial for safety—if you notice abnormal displays or the system stops working, promptly visit a reliable shop to replace or upgrade to an internal system. Don't take risks by delaying it.
Let's talk about this from a technical perspective: The lifespan of external tire pressure monitoring mainly depends on the built-in battery and external environmental factors. These sensors are powered by lithium batteries and typically last between 1 to 5 years under normal conditions. However, if you frequently drive in damp, cold, or high-temperature areas, the components are prone to oxidation or damage, which can shorten their usable life. I understand that the circuit design is relatively simple, but with more wear and tear, the signal weakens. It's advisable to choose products from reputable brands, especially those with rust-proof treatments. After installation, regularly clean the sensors to prevent dirt buildup. If you notice inaccurate readings, check them promptly instead of waiting for a complete failure. Overall, these devices offer good value for money, but proper maintenance can extend their lifespan, ensuring safer and more stable driving.
