With this device not only you will have information on where the vehicle is located but also you will have complete control over the vehicle. You can plug it into the car alarm system and to control two relays. If one of them is for example the fuel pump relay you can adjust the tracker in a way that when leaving a predefined geographical area it will stop the fuel and that way it will prevent the vehicle from leaving the area. The control unit is able to adopt an external sensor (not included in the kit), which can respond to vibrations or microwaves and thus receive information when the vehicle is in motion. Powered by electric current 12-24 V DC. The kit includes no source of power. You will have to connect the unit to the vehicle battery.