Your doggie door didn't come with the aluminum slide that you use to close it when not in use? That's what I usually contact...not the moving flapper door.
| > Personally, I would secure your pet door for the evening (and contact it so | > that when you arm your system, you're arming the door). IMO that would be | > better than using a motion detector which will pick up all sorts of | > extraneous movement (like bushes and trees blowing in the wind, other | > animals, or even people). Keep the protection *on the door* and you'll have | > far less headaches (and probably sleep better too). | >
| > The alternative is to simply contact the pet door using your 5816 and have | > it beep, chime, or turn on the lights (instead of the motion detector). I | > guarantee that you'll opt to secure the door after a few "incidents" and you | > won't be out the price of the Optex unit if you decide to "scrap" that idea. | | I just realized that contacting the door is out anyhow because during | the winter months the wind can really pick up and blow the door flap | open and shut. | | I just read the description of the Optex outdoor motion sensor. It | seems like it might have reasonable immunity to trees in the wind. It | emits one beam horizontally and another down toward the ground... A | person of normal height who passes by will break both beams and set it | off, however a dog will only break the lower beam and not set it off. | It seems unlikely that my trees and bushes are going to be breaking | both beams. However I guess if plants low to the ground are swaying | and trees higher up are also swaying, that could do it. | | Hmm. |