The alarm helps guard your Volvo when parked and deter uninvited visits. It also reacts to movement inside the car, the breaking of a window and if someone tries to steal your wheels or tow your car away. It is automatically activated when you lock the car and is connected to the doors, bonnet and tailgate. A level sensor deters thieves from jacking up the car to steal your wheels or tow it away while the deadlock function makes it impossible for a thief to open the doors from the inside once the car is locked from the outside. The movement sensor, level sensor and deadlock function can be switched off so people or pets can be left inside the parked and locked car.