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SureFlap SUR001 Check price on Amazon

SureFlap - Sure Petcare Microchip Cat Flap, White, Scans Pet's ID on Entry, Check Your Cat's Size,Flap Opening is 4 3/4” (H) by 5 5/8” (W) Review

By Dr. Lena Ortiz · Canine wellness writer · Published 2026-06-21 · Updated 2026-07-03

4.1 (18,200) Amazon rating$170.00100+ bought last month

Our verdict

The SureFlap Microchip Cat Flap reads your cat's existing microchip to decide who gets in, so you get true selective entry without buying a special collar, though the price sits well above basic flap doors.

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Best for

Owners who want to keep specific cats in or out, or block neighborhood cats and wildlife, using the microchip their cat already has.

Skip if

Your cat is not microchipped yet, or you want the cheapest option, since this runs well above basic locking flaps.

  • Breed size Medium
  • Weight 1 Pounds
  • Priced 432% above the category median ($31.95 across 49 tracked models)

Our scorecard

4.1/5 overall
  • Owner rating4.1/5

    4.1 average across 18,200 owner ratings

  • Popularity5.0/5

    18,200 owner reviews, more than most models here

The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other dog and cat food, health, gear and grooming we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.

Overview

SureFlap's Microchip Cat Flap scans your cat's existing microchip on entry and only unlocks for pets you have registered to the device. That means no extra collar tag to buy or lose, since it works off the chip your vet already implanted.

Both the flap and frame are plastic in a white finish, and the whole unit weighs about 1 pound. It is rated to fit doors and walls up to 10 inches thick, which covers most standard doors and many wall installations, and button controls let you switch between entry modes.

At $170, it costs several times more than a basic locking flap, but a rating of 4.1 stars from over 18,200 reviews shows it has a long track record with a large number of buyers.

Pros

  • True microchip-based selective entry, no collar key needed
  • Fits thick doors and walls up to 10 inches
  • Large review base of more than 18,200 ratings shows a long track record
  • Button controls let you set in, out, or locked modes

Cons

  • Premium price compared to basic locking flaps
  • 4.1 rating trails some simpler locking doors in this category

Specifications

Breed size
Medium
Weight
1 Pounds

Performance notes

Specs list a maximum compatible thickness of 10 inches, a flap and frame material of plastic, and an item weight of about 1 pound. The closure type combines a flap with button controls for setting entry modes, and the finish is white.

What buyers say

Over 18,200 ratings average out to 4.1 stars, a solid but not top score, likely reflecting the mix of pet owners who love the microchip tech and those who find installation or upkeep less convenient.

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Frequently asked questions

How does the SureFlap know which cat to let in?

It reads the microchip your cat already has implanted and only unlocks the flap for chips you have registered to the device.

What door thickness does it work with?

It is rated for doors and walls up to 10 inches thick.

Do I need a special collar for my cat?

No, since it relies on your cat's existing microchip rather than a collar key or tag.

our full rankings  ·  All Cat Doors

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