Is it ok to mount the transmitter on the door and then just chisel out enough of the casing for the magnet or should the transmitter be mounted on the casing. If the transmitter is mounted on the casing, this would mean notching out 1.5" x 3" because the casings are all fancy trim with no flat spots. It won't be pretty. How rugged are these transmitters. If mounted on the door, will they stand up to constant vibration of opening and closing the door?
Bob