2. Sensing the turn on/turn off of an old-time stand-alone outdoor motion detector floodlight. Doing this brings nighttime motion detection at the garage into the M1. I don't know the make of this motion detector unit (came with the house) but it is great, very sensitive, long-distance, and in an important location at the garage. It works so well I am disinclined to replace it.
Have any extras, by any chance?
Dave