Jibin Lukose It can be done but accelerometers can sense tilt and shocks. We dont know for sure if there will be significant shock generated on the handle lock being broken. I have seen accelerometer sense nothing when moved very slowly. As you said, the tilt values in all axis can be measured for any changes. But it will give false alert when someone moves the vehicle for taking out his bike, so someone is asking me to implement some technique to find out if handle lock opened, with brute force or with duplicate key (No shock will be detected here).