The 507M Digital Tilt Sensor from Directed is ideal for protecting a vehicle from theft by detecting when the vehicle is being raised by a tow truck or lifted using a jack, in an attempt to remove the wheels or tow the vehicle. The 507M auto calibrates each time the alarm is armed, referencing the vehicle’s angle of inclination and ensuring the most accurate tilt sensing possible. The 507M is perfect for protecting vehicles with upgraded wheels and tires.