Microchip cat flap · SureFlap

SureFlap Microchip Cat Flap

The best-selling microchip cat flap

Updated October 2026

Quick verdict

The microchip flap most homes need.

Strength
Reads common chips, simple.
Trade-off
Scans on entry only.
Right buyer
Homes with intruder cats.
Dimensions (seller)
8.94 x 8.74 x 4.92 inches; 1 pounds
Product weight
16 ounces
Prices change often; the button shows today's price.

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Why it matters

SureFlap's Microchip Cat Flap reads your cat's implanted chip and lets only registered cats in, keeping out neighbors' cats and wildlife. It works with 9-digit AVID Secure, 10-digit FDX-A and 15-digit FDX-B chips.

It scans on entry only, so any cat can leave. The opening is 4 3/4 in high by 5 5/8 in wide, and four AA batteries last up to 12 months.

Who it's for, and who should skip it

Good fit if

  • Homes with intruder cats
  • Most cats
  • Doors, windows or walls

Look elsewhere if

  • Large cats
  • Keeping a cat indoors (no exit control)
  • Owners wanting app control

Pros and cons

Pros

  • Reads common chips
  • Year-long batteries
  • Proven design

Cons

  • Entry-only scanning
  • Small opening
  • Batteries extra

Limitations to weigh

  • Measure your cat's widest point and the door or wall thickness before cutting; check the cut-out size on the maker's template.
  • Confirm your cat's microchip number and standard before buying; a vet or a scanner can read it.
  • Prop the flap open for the first days and reward your cat for using it; most cats learn within a week.

Specifications

Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.

MaterialPlasticRetailer
Frame materialPlasticRetailer
Breed sizeMediumRetailer
ClosureFlap,ButtonRetailer
In the pack1 SetRetailer
Pieces1Retailer
In the box..Retailer
Product weight16 ouncesRetailer
Model numberSUR001Retailer
Dimensions (seller)8.94 x 8.74 x 4.92 inches; 1 poundsRetailer

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Final verdict

The safe default microchip flap.

Where to buy

Our links open this exact model's product page. Prices and stock change; check what's included before you order.

Prices change often; the button shows today's price.

Each button opens this exact model. We may earn a commission on tracked links; it never changes what we publish. Disclosure

Questions buyers ask

Which chips does it read?
9, 10 and 15-digit microchips.
Can I keep one cat in?
No, it scans on entry only; DualScan adds exit control.