Foot sensor only. The electric trunk is another item. This is an electric trunk system specially designed for Tesla Model 3. Our system works perfectly with the original Tesla trunk and the internal system of the car. In addition, there is a sensor at the bottom for detecting the sweeping action of thands-free opening. This smart aftermarket luggage system provides additional value for your vehicle. The installation is designed for yourself, but we also provide professional installation services and support. The electrical system has a high degree of reliability. In addition to bypassing all complicated piping and maintenance work, it will also surpass the hydraulic system.