Amazon.com : SureFlap Dual Scan Microchip Cat Flap, White : Flap Pet Doors : Pet Supplies
User manual Trixie SureFlap (English - 24 pages)
Setting Up Your SureFlap Microchip Cat Flap - YouTube
Amazon.com : SureFlap Microchip Cat Door Connect with Hub Bundle - Door Opening: The Microchip Cat Door Flap Opening is 5 5/8" (w) by 4 3/4" (h : Pet Supplies