What are the differences between built-in and external tire pressure monitoring systems?
3 Answers
The differences between built-in and external tire pressure monitoring systems mainly lie in three aspects. Below is a detailed introduction to these three differences: 1. Price: In terms of price, the built-in type is more expensive. The external type is more affordable. 2. Installation method and time required, The installation of the built-in type takes more time and requires hiring a professional team to remove the tires. The installation of the external type takes less time and does not require hiring a professional team to remove the tires, as the car owner can do it themselves. 3. Others: The installation process of the built-in type is more complex. The installation process of the external type is simpler. In terms of accuracy, the external type is slightly less precise than the built-in type. In terms of theft prevention, the built-in type is more secure than the external type.
As a seasoned driver, let me talk about built-in vs. external tire pressure monitoring systems. The built-in type has sensors installed inside the tire at the valve stem position, requiring tire removal for installation - quite troublesome and needs professional help. But being hidden inside prevents theft, basically eliminating worries about someone casually stealing it. Pressure readings are more accurate while driving, especially during seasons with large temperature differences like winter and summer, as temperature has minimal impact. The downside is that the battery lasts about 5-6 years before needing complete sensor replacement, which can be quite expensive for repairs. My car came with built-in sensors from the factory, and seeing stable numbers on the center console screen while driving gives me great peace of mind, especially during highway trips and long-distance drives.
I'm in the auto repair business, and the main differences between these two types lie in installation and durability. The external ones are the easiest to install—just screw them onto the valve stem yourself, and changing the battery is convenient too; you can buy a button cell at the supermarket and do it yourself. However, the sensor is exposed to wind and sun, the rubber gasket is prone to aging and air leakage, and you also have to worry about it getting knocked off when going over speed bumps. Their accuracy is also slightly worse than the internal ones, especially when the wheels are rotating at high speeds. Last time, a customer opted for the cheaper external version, but the tire pressure alarm kept giving false alerts, which frustrated them so much that they eventually switched to the internal version.
