Denew 4PCS valve stem tire pressure monitoring sensor valve stem TPMS tire pressure monitoring system explosion-proof tire valve stem automotive tools Material: The valve stem of the tire pressure monitoring system adopts a rubber structure, with stable performance, high reliability, long service life, and durability. Size: The valve stem length of the tire pressure monitoring sensor is 5.6 centimeters, and the accurate size allows it to fit well with the tire without being easily lost. Practical Kit: The tire pressure sensor valve stem kit includes a valve stem core (installed), valve stem cover, and mounting screws that connect the valve stem to the sensor. Easy operation: Installing the tire sensor tire pressure monitoring system valve stem is easy and does not require modification. You can directly replace your old valve stem, and you can install it yourself or request a professional installation method. Increased safety: The sensor stem is an upgraded valve equipped with an overpressure exhaust valve; It can automatically open or close the ventilation hole of the valve to ensure that your car tires are at the correct pressure. With this tire pressure sensor, your driving will be safer.