No special adapter is normally required to install the SureFlap microchip cat flap (model SUR001BR) in a wooden door. The cat flap can be installed directly into the door as it is supplied with an installation template and installation instructions to facilitate installation into various types of doors, including wooden doors.
Edit:The dimensions of the clear plastic flap of the SureFlap Microchip Cat Door are 14.2 cm (width) by 13.7 cm(height). To calculate the diagonal size, you can use the Pythagorean theorem:
So, the diagonal size of the cat flap is approximately 19.71 cm.
Multiple cats is possible. But locking one direction is mechanical at the door, so it's always the same for everyone. I would take a more expensive one for your requirements, the quality of this one is not exactly outstanding.
No, that is not possible with this model, as it "only" has a manual or physical regulator, but there is a more expensive model that is completely digital and where you can adjust everything individually via an app.
We also have two cats and the flap has been working for over a year without any problems.
The batteries have been changed once. It has a button for programming. Press it and send the cat through 1x. Do the same with the other one. Done.
Fits in doors up to 6 cm thick.
Dimensions:
Outer dimension: 210 mm x 210 mm
Door opening dimension: 142 mm x 120 mm
Outer dimension door, wall: 165 mm x 171 mm
No, a collar with a chip is not included. But we have had the chip implemented under the cat's skin by the vet. This is the same chip that identifies the cat in case it gets lost or something.