We just bought the Ador 1, my husband installed it on our new coop this past weekend but he ran out of time and didn't get the sensor part installed yet. Although I can't comment yet on its functionality, it is a really nice door. My husband said he didn't have any problems with the installation. I like it so far because it looks nice in my coop ! I will come back and repost this weekend and let you know how it works for us.