What is the lifespan of an external tire pressure monitoring system?
2 Answers
The lifespan of an external tire pressure monitoring system is approximately two years. Additionally, the battery in an external tire pressure monitor can be replaced by the user, allowing for reuse. There are three common methods of tire pressure monitoring: Direct Tire Pressure Monitoring: This system uses pressure sensors installed in each tire to directly measure the tire's air pressure. The pressure information is transmitted wirelessly from inside the tire to a central receiver module, which then displays the data for each tire. The system automatically alerts the driver if the tire pressure is too low or if there is a leak. Indirect Tire Pressure Monitoring: When the pressure in a tire decreases, the vehicle's weight causes the rolling radius of that tire to become smaller, resulting in a faster rotation speed compared to the other wheels. By comparing the differences in rotation speeds between tires, the system monitors tire pressure. Indirect tire pressure monitoring systems essentially rely on calculating the rolling radius of the tires to monitor pressure. Introduction to Tire Pressure Monitoring System (TPMS): This system combines the advantages of both direct and indirect systems. It is equipped with direct sensors in two diagonally opposite tires and includes a four-wheel indirect system. Compared to a full direct system, this hybrid system reduces costs and overcomes the limitation of indirect systems, which cannot detect when multiple tires simultaneously have low pressure. However, it still cannot provide real-time data on the actual pressure in all four tires as effectively as a direct system.
I replaced my external tire pressure monitoring system after using it for about four years until the battery ran out. Generally, the lifespan of such devices is around three to five years, depending on the brand and usage habits. Higher-quality ones last longer. I bought a no-name brand on JD.com, which stopped working after three years, and later switched to a well-known brand that is still functioning. It's advisable to choose one with a dust-proof design to prevent dust blockage from affecting readings. Regularly check your tires to ensure the pressure is normal. The monitor itself requires periodic maintenance, such as avoiding strong vibrations and keeping it away from high temperatures, which can extend its lifespan. It's best to check the readings every six months for any delays or errors and address them promptly. Don’t wait until it’s completely useless to take action. Driving safety comes first—paying attention to small details can save a lot of hassle.
