BTW for those of you who care, more adults are killed by doors than children. installing the sensors anywhere other than thier intended location is just plain foolish. While you're at it, go ahead and remove the smoke detectors in your house, after all, it's not on fire right now. You could try door alarms
or running a short piece of wire connecting the terminals. I have my sensors on top of the opener taped together facing each other. I live alone so no worries about anyone or anything getting crushed.