You have invested in a microchip for your cat, but the old flap door still lets in neighborhood strays and wildlife. Or maybe your indoor cat keeps slipping out, and you need a way to control exit permissions. This is where SureFlap microchip pet doors come in. They read your pet’s implanted ID microchip and grant access only to authorized animals. In this guide, we compare three popular SureFlap models: the standard Microchip Cat Flap, the DualScan version, and the larger Pet Door for small dogs. We help you decide which one fits your home and your pet’s habits. For more side-by-side product comparisons, visit our Comparisons page.

Buying Guide

Microchip Compatibility and Programming

All three SureFlap models work with common microchips using 9, 10, or 15 digit numbers (Avid Secure, FDXA, FDXB). If you are unsure of your cat’s chip type, check with your veterinarian or shelter. Each door can store up to 32 identities, so multi-pet households are covered. Programming is a one-button process, but note that the standard Cat Flap and the Pet Door only screen on entry. The DualScan adds exit control, letting you set which pets can leave the house. This is a key difference if you need to keep a specific cat indoors.

Door Size and Pet Type

The standard Microchip Cat Flap and the DualScan have a flap opening of 4 3/4 inches high by 5 5/8 inches wide. That size works well for most cats. The SureFlap Microchip Pet Door (brown) offers a larger opening of 6 11/16 inches by 7 inches, making it suitable for small dog breeds or larger cats. Measure your pet before purchasing. All models can be installed in doors, windows, or walls with optional accessories. For installation tips and other pet tech advice, explore our Pet Tech Guides.

DualScan vs Standard Entry

The standard SureFlap Microchip Cat Flap and the Pet Door use selective entry only: the flap unlocks when a recognized microchip approaches from outside. They do not control exits. The DualScan model scans both entry and exit, meaning you can set permissions for each direction. This is ideal if you want to keep a cat indoors for medical reasons or to prevent them from bringing prey inside. The DualScan costs more, but the added control can be worth it for owners who need to manage their pet’s comings and goings precisely.

Battery Life and Installation

All three doors are battery powered. The Microchip Cat Flap and the DualScan use four AA batteries, while the larger Pet Door requires four C batteries. SureFlap estimates up to 12 months of battery life depending on usage. A low battery indicator flashes red when replacement is needed. Installation is straightforward with the included template and instructions. For more detailed setup guidance, refer to our Pet Tech Guides.

Final Thoughts

Choosing between these SureFlap models comes down to your pet’s size and your need for exit control. For most cat owners, the SureFlap – Sure Petcare Microchip Cat Flap, White offers reliable selective entry at a lower cost. If you need to manage which pets can leave the house, the SureFlap DualScan Microchip Cat Door provides that extra layer of control. Both options keep strays out and give you peace of mind. Whichever you choose, your cat will enjoy a safe, personalized doorway that only opens for them.

Frequently Asked Questions

Can I use a SureFlap door without a microchip?

Yes. SureFlap sells programmable collar tags that work with the same RFID system. This allows pets without an implanted microchip to still use the door. The tags are sold separately and can be programmed easily with the one-button setup.

How do I program multiple cats into the door?

Programming is simple. Hold the button until the light flashes, then present your cat’s microchip or collar tag to the reader. The door learns up to 32 identities. Repeat the process for each pet. The DualScan model lets you set separate permissions for entry and exit per animal.

What if my cat has a non-standard microchip?

SureFlap doors are compatible with the most common microchip formats (9, 10, and 15 digit). If your pet uses a less common chip, check with the manufacturer or your veterinarian. In most cases, the programmable collar tag is a reliable alternative.

Is the DualScan worth the extra cost in 2026?

If you need to restrict your cat from going outside, the DualScan is the only model that controls exits. For basic selective entry only, the standard Microchip Cat Flap works perfectly. Consider your pet’s lifestyle and your home’s security needs before deciding. For more advice, browse our Pet Tech Guides.