Philips TD5101I is a solar-powered tire pressure monitoring system that provides real-time tire pressure and temperature data. It features four external sensors that are easy to install and can be quickly matched with the display device. The system offers various alarms, including low/high pressure, fast leakage, high temperature, and sensor signal loss, ensuring your safety on the road. The long battery life of up to 4 years ensures uninterrupted monitoring, and the G-sensor automatic function activates the device as soon as you start your car.