Finding a reliable microchip cat flap helps keep unwanted visitors out while giving your cat convenient access. This guide reviews five top options, highlighting how each uses microchips or RFID to grant entry, plus installation flexibility for doors, windows, or walls. Whether you need multi-pet support, a system with app connectivity, or extra security features, these picks cover a range of homes and cats. Below is a quick product snapshot to help you compare at a glance.
| Product | Brand | Key Benefit | Opening Size |
|---|---|---|---|
| SureFlap Microchip Cat Flap | SureFlap | RFID microchip access; learns up to 32 identities | 4 3/4″ x 5 5/8″ |
| Closer Pets Microchip Activated Cat Flap (360) | Closer Pets | Microchip or ID disc welcome; 4-way lock | Not stated |
| SureFlap Sure Petcare Microchip Pet Door | SureFlap | Curfew lock; 32 identities; collar tags supported | 6 11/16″ x 7″ |
| Smart Cat Door (Yussimi) White | Yussimi | Remote control and 3 collar keys; 4 modes | 7.7″ x 8.3″ |
| Custom Cat & Small Dog Window Insert | Cat Flap Fever | Insulated, weather-sealed; multiple lock options | Not stated |
SureFlap Microchip Cat Flap (White)

This selective entry door reads your cat’s implanted microchip via RFID, allowing access while blocking intruders. It learns up to 32 identities and supports programmable collar tags for non-microchip cats. The simple one-button programming makes setup straightforward. The door opening measures 4 3/4 inches by 5 5/8 inches, suitable for installation in doors, windows, or walls. Compatible with common 9, 10, and 15 digit microchips. Accessories are available to tailor installation to your home.
Closer Pets Microchip Activated Cat Flap (360)

This microchip-activated entry uses your cat’s microchip or ID disc to allow access, helping keep wildlife out. It supports versatile installation on single or multi-glazing doors, UPVC or metal doors, walls, or wooden doors. A self-lining feature accommodates up to 3 3/8 inches thick installations. It includes a 4-way rotary lock for in/out, in only, out only, or locked modes, with the option to lock at night for added security.
SureFlap Sure Petcare Microchip Pet Door

Designed for selective entry, this door scans on entry only and supports up to 32 identities. It offers a simple one-button setup, and you can program a curfew to lock and unlock at specified times. It also supports restricted entry only for exiting. Microchip compatibility covers 9, 10, and 15 digit chips. The opening measures 6 11/16 by 7 inches, suitable for doors, windows, or walls with available accessories.
Smart Cat Door for Interior & Exterior (White) – Yussimi

This smart door includes built-in RFID sensor keys and a remote control for entry and exit. It features four operation modes (Locked, In only, Out only, Fully Open), adjustable via an on-front “M” button or paired remote. The sensor keys must be paired to activate the collar, preventing accidental openings. The lock design minimizes cold air intrusion and provides a 7.7 by 8.3-inch inner opening to accommodate most cats up to about 20 pounds.
Smart Cat Door for Interior & Exterior (Black) – Yussimi

Another color option with the same features: three collar sensor keys, one remote, and four intelligent modes. It uses the same activation method, together with silent unlocking to maintain a calm home environment. The entry measures roughly 7.7 by 8.3 inches, offering a comfortable passage for most house cats and small dogs while deterring wildlife.
SureFlap Sure Petcare Connected Cat Door

Connected via the Sure Petcare hub (not included), this door uses DualScan technology to control entry and exit for each cat and supports notifications through the app. It enables a customizable curfew and on-demand control from the app. The door opening is 5 5/8″ x 4 3/4″, suitable for standard interior doors. This option emphasizes smart home integration alongside microchip identity recognition.
Buying Guide
Key considerations when choosing a microchip cat flap door:
- Security level: Look for doors with selective entry, multi-way locks, and night locking options to prevent intruders.
- Chip compatibility: Ensure the door supports the microchips used by your cat (9, 10, or 15 digits) and consider collars as a backup for non-chip pets.
- Installation flexibility: Check opening dimensions and whether the unit installs in doors, windows, or walls, plus thickness compatibility for frames.
- Pet management features: Curfews, notifications, and per-cat access control are valuable for multi-pet households or when you’re away.
- Smart integration: If you use a home assistant or the brand’s app, ensure the hub or app compatibility and required accessories are clear.
- Durability and weather sealing: For exterior installations, prioritize insulation, weather seals, and robust construction to reduce drafts.
- Size considerations: Inner opening dimensions should accommodate your cat’s size; if you have a larger cat, verify clearance before purchase.
Overall, the best option depends on your priorities: simple microchip entry with reliable security, advanced smart features, or robust weather resistance for harsh climates. For households with multiple cats, models offering per-cat access and curfews provide enhanced control. If you value smart notifications and remote control, consider a connected door that integrates with a hub ecosystem. Review installation requirements to ensure a seamless fit in your home’s doors, walls, or windows.