Good Day ! My concern was a completely different: The days are getting shorter, it is cool. So it turned out that I need the evening otherwise open patio door (entrance to the kitchen) carry on sometimes. Now sitting in front, stupid faces and grimaces making, 3 chicks and want in the warm room. But neither door nor opener in sight, cat flap nil. Now I had an idea. I also can see from the living room onto the terrace, I wanted to install some kind motion, which then signaled to me: That's jemand..öffne the door ... let me in. I chose this product and: it works, quite outstanding.
I can not make data (is only a few days in operation), but as soon as Kitty about the durability. and Co (hedgehog) storm the terrace, Zack light on, jump up from the sofa, rushing to the kitchen door, cat in, door, ready :-)
However, it should be mentioned in the text that a power cable is required. I have the same one taken with plug because an external socket at the house is available.