Keep your home secure and set custom boundaries for each of your pets with this SureFlap DualScan Microchip Cat Flap. It uses RFID microchip technology to let only your registered pet in, keeping stray animals out. It's a good solution for multi-cat households where some pets roam and others stay safely indoors. And it works with all common 9, 10 and 15-digit microchips, storing up to 32 pets with a simple one-button registration. Good to know - The selective entry and exit using the pets implanted RFID microchip- The dual-scan system gives each pet a personalised access setting, stopping adventurous indoor cats from slipping out unnoticed- It runs for up to 12 months on four AA batteries (not included), with a flashing low battery indicator for convenience- A manual 4-way lock gives you full control and lets you override the automatic settings for extra peace of mind