The SureFlap Sure Petcare Microchip Cat Flap is the best microchip cat door for most buyers because it uses your cat’s existing microchip to control entry. Its main strength is simple selective access, so registered pets can come inside while unfamiliar cats stay out.
This guide is for owners comparing electronic cat flaps for indoor-outdoor pets. Focus on the flap’s opening size, microchip compatibility, battery life, and weather sealing, since those details affect fit, reliability, and installation. Check your cat’s chip type before buying. The five picks below are ranked with clear reasons and honest drawbacks for each, so you can choose a model that suits your cat, door, home layout, and daily routine.
Quick Comparison
| # | Product | Best For | Price | |
|---|---|---|---|---|
| 1 | SureFlap Sure Petcare Microchip Cat Flap | Single-cat households | ~$128 | View → |
| 2 | SureFlap DualScan Microchip Cat Door | Multi-cat selective access | ~$201 | View → |
| 3 | PetSafe Microchip Cat Door | Budget-conscious cat owners | ~$108 | View → |
| 4 | Cat Mate Microchip Cat Flap | Larger cats needing room | ~$80 | View → |
| 5 | ALUMANI Smart Cat Door | App-connected smart-home users | ~$55 | View → |
5 Top Microchip Cat Door Picks
These ranked cat doors count down to the top pick, with chip compatibility, entry controls, and installation needs compared for each home.
5. ALUMANI Smart Cat Door
Best for: Indoor-outdoor cats needing controlled access
The ALUMANI Smart Cat Door is a four-way pet flap for interior or exterior doors. Its settings allow entry only, exit only, free movement, or locked access. The frame measures 9 1/4 by 11 1/2 inches, while the flap opening measures 6 7/8 by 7 1/8 inches. The recommended limit is 22 pounds, with pets at least 4 months old. At around $55, it costs more than a basic manual flap.
The collar sensor is the main reason to consider this model. The package includes two collars, and a cat can touch one to the lower outside frame to release the flap when access is restricted. That setup can help keep unfamiliar animals out while allowing your cat inside. The door uses ABS plastic, which resists claws and bites and provides some insulation and weather protection. Installation works with wood, metal, glass, and other door materials, but the cutout must measure 6 7/8 by 7 5/8 inches. Glass doors may need specialized cutting tools or professional installation.
Pros
- Four access modes provide more control than a standard swinging flap.
- Two sensor collars support multiple cats without buying extras.
- ABS construction offers resistance to claws, bites, and outdoor exposure.
Cons
- The 6 7/8-inch-wide opening may not fit larger cats or bulky breeds.
- Cats must wear and use the supplied collar for restricted entry, which can be lost or removed.
4. Cat Mate Microchip Cat Flap
Best for: Multi-cat homes that need controlled access
The Cat Mate Microchip Activated Cat Flap reads each cat’s implanted microchip before unlocking. It can store up to 30 cats, making it useful for busy households with several pets. A button programs each animal, while the LED confirms successful registration. Cats without a compatible microchip can use a Cat Mate ID Disc, but that accessory costs extra.
A four-way locking system lets you choose how the flap works, including controlling entry and exit. The flap uses tough polymer and a magnetic closure to reduce drafts and help block rain. It fits doors up to 35mm thick, including metal doors. Wall, glass, and thicker metal installations need separate adapter kits. At around $80, it costs more than a basic manual flap, but the selective entry can help keep neighborhood cats and strays outside.
Pros
- Stores access settings for up to 30 cats.
- Reads a pet’s microchip automatically, without a collar.
- Four-way locking gives you control over entry and exit.
Cons
- Cat Mate ID Discs and adapter kits cost extra.
- Installation options beyond standard doors may require additional parts.
3. PetSafe Microchip Cat Door
Best for: Multi-cat homes needing selective access
The PetSafe Microchip Cat Door gives cats controlled access through an interior or exterior door. It reads each pet’s unique 15-digit microchip ID, then unlocks only for programmed animals. You can register one cat or up to 39 additional pets. Cats without microchips can use separate programmable collar keys. At around $108, it costs more than basic flap doors, but it adds useful household control.
The four-way manual lock offers Locked, Unlocked, Enter Only, and Exit Only settings. That makes it easier to keep a cat indoors during storms, nighttime, or vet visits. Two magnetic latches help block stray animals and curious paws, while built-in weather stripping limits drafts. Installation works with wood, PVC, and uPVC doors. Metal, glass, brick, and wall installations need separate accessories, which can raise the total cost. PetSafe also provides phone, email, and chat support in the U.S.
Pros
- Uses each cat’s 15-digit microchip ID for selective entry.
- Supports up to 40 programmed pets in one household.
- Four locking modes provide flexible indoor and outdoor control.
Cons
- Separate collar keys are required for cats without microchips.
- Nonstandard installations, including glass, brick, metal, and walls, need extra accessories.
2. SureFlap DualScan Microchip Cat Door
Best for: Multi-cat homes with outdoor access
This electronic cat door reads a pet’s existing microchip, so you do not need collars or separate tags. It is designed to block unrecognized cats and some wildlife from entering. The opening measures 4 3/4 inches high by 5 5/8 inches wide, so check your cat’s size before buying. At around $201, it costs more than basic flap doors, but the identification system adds useful control.
DualScan technology lets you set exit permissions for individual pets. That matters in homes where one cat needs to stay inside while another can roam. The unit can store up to 32 pets, giving it room for a large multi-cat household. Installation works in doors, windows, or walls, although window and wall setups may need separate accessories. Four AA batteries power the reader for up to a year under normal use. Batteries are not included.
Pros
- Uses existing common microchips, avoiding collar tags for identification.
- Individual exit settings can keep selected cats indoors.
- Stores up to 32 pets and supports door, window, or wall installation.
Cons
- The 4 3/4-by-5 5/8-inch opening may not suit larger cats.
- Four AA batteries are required, and compatible installation accessories may cost extra.
1. SureFlap Sure Petcare Microchip Cat Flap
Best for: Indoor cats needing selective outdoor access
The SureFlap Microchip Cat Flap lets approved cats enter without opening the door for stray animals. It reads compatible implanted microchips, including 9-digit Avid Secure, 10-digit FDXA, and 15-digit FDXB numbers. One button handles programming, and the unit can store up to 32 pet identities. Cats without a microchip can use separate programmable collar tags. At around $128, it costs more than a basic flap but adds identity-based entry control.
The opening measures 4 3/4 inches high by 5 5/8 inches wide, so measure your cat before buying. This white flap fits doors, windows, or walls, though some installations require separate SureFlap accessories. It uses four AA alkaline batteries, which are not included, with estimated life up to 12 months depending on traffic. A flashing red light signals low power. The system screens entry only, so an approved cat can still leave freely. A three-year warranty adds useful coverage.
Pros
- Allows approved microchipped cats inside while blocking unrecognized animals.
- Stores up to 32 identities for multi-cat households.
- Fits doors, windows, and walls, with a low-battery warning.
Cons
- The 4 3/4-by-5 5/8-inch opening may not fit larger cats.
- Four non-rechargeable AA batteries are required, and collar tags cost extra for pets without microchips.
Buying Guide
The most important factor is chip compatibility. A reliable microchip-controlled cat flap should read your cat’s existing 15-digit ISO microchip, so you do not need a separate collar tag.
- Microchip recognition: Choose a model that supports ISO 11784/11785 chips and stores at least 10 to 40 approved cats. Confirm your pet’s chip number before buying.
- Opening size: Measure your cat’s chest width and shoulder height. The flap should be at least 1.5 inches wider and 1 inch taller than those measurements.
- Access controls: Look for four-way locking, selective entry, and a curfew timer. A schedule such as 10 p.m. to 6 a.m. can keep a cat indoors overnight.
- Power supply: Battery models should run for roughly 6 to 12 months and provide a low-battery warning. A backup lock helps during power loss.
- Installation and weather protection: Check the supported door or wall thickness, often 0.5 to 2.5 inches. A tunnel extension may be required for walls. Choose sealed edges and a rain-resistant flap for outdoor exposure.
If you cannot have every feature, prioritize verified microchip compatibility and reliable selective entry.
Frequently Asked Questions
How does a microchip cat flap work?
A microchip cat flap reads your cat’s implanted ID and opens only for pets registered in its memory. Look for models that support at least 30 to 40 IDs, four-way locking, and an adjustable entry delay. Your cat usually needs a compatible ISO microchip, though some doors also accept a supplied collar tag.
What should I look for in a microchip pet door?
Choose a microchip pet door by checking your cat’s size, wall or door thickness, weather sealing, and battery access. Measure the flap opening, not the outside frame, because a 7-inch opening may suit a small cat but restrict a larger breed. Also check replacement battery costs and whether the unit records entry history.
Can a programmed cat door keep stray cats out?
Yes, a programmed electronic cat door can keep unregistered cats from opening the flap. Choose a model with selective entry, then register your pets’ microchip numbers during setup. It cannot prevent a permitted cat from holding the flap open, so a short tunnel, sheltered placement, or camera may help. Many models let you register 20 to 40 pets.
Are microchip cat doors safe for everyday use?
Microchip cat doors are generally safe when installed securely and matched to your cat’s size. Pick a rounded flap with no sharp edges, keep the opening clear, and replace batteries before the low-power warning becomes urgent. Most battery-powered models use two to four AA batteries, but schedules vary by brand and traffic.
Conclusion
SureFlap Sure Petcare Microchip Cat Flap is the top recommendation for households that want chip-based entry control without adding a collar tag. If remote monitoring matters more than simple access, pick an app-connected microchip flap instead, since it can send entry alerts and manage permissions from your phone. Before buying, double-check the opening size against your cat, confirm compatibility with the implanted chip and door or wall setup, verify how many pets the memory supports, and compare the current price with models. Also check the installation kit you need, especially for glass, metal, thick doors, or walls. A fit check helps prevent returns and keeps the flap practical for use.