This high-tech cat detection system works well. Both sides recognize the registered access chips and open with 1-2 seconds delay the flap. The entire registration procedure was completed with the detailed instructions in two minutes. With us a stone channel with wood paneling in masonry was present. Taking the own SureFlap channel would (besides 60 more INVESTMENT for a little plastic) tasted especially a lot of work. So the old channel was unceremoniously cut to fit. Flap fits great! Then came the surprise: Unfortunately, the SureFlap no way (just like any other 15 euro no-name flap) from the front by screws or the like to be attached. Only REAR screwing devices for their own SureFlap system are available. Thus, the flap must be secured with double-sided tape, hot glue or superglue (at least from the front). (The manual says you should glue the flap -Of warranty reasons or for a later upgrade NOT.) Glued to the flap but and should therefore be something (defect etc.), one can thus see how she gets abgezerrt again. For the price and the ambitious handyman simply unsatisfactory. Especially here in the neighborhood two kampfkater mischief who wrecked sometimes even a door (where they do not came in). If the only properly lean against, press the door and its frame out simply.
Conclusion: Top System - Installation unfortunately leaves little room except for one's own SureFlap system. Nächtes times I look a little bit about ... Anyone wanting to use it exactly as SureFlap specifications, must be very happy with it.