This Huf Baolong Porsche Tire Pressure Sensor (315MHZ Frequency) - RDE022 is a tire pressure monitoring system that is designed to monitor the pressure and temperature of a vehicle's tires. It features a 315MHZ frequency and is equipped with a digital display, allowing for easy monitoring. It is also equipped with an alarm system that will alert the driver if the pressure or temperature of the tires is too low or too high. This product is designed to provide a safe and reliable way to monitor the tire pressure of your vehicle.