Buyer's GuidesBest Microchip Cat Doors in the US (2026): Ranked by a Professional Installer
Quick Answer: The Best Microchip Cat Door in the US
If you want the short version:
• Best overall: SureFlap Microchip Cat Door (~$130–$160) — the most reliable reader we fit, and the widest chip compatibility
• Best for large cats & small dogs: SureFlap Microchip Pet Door (~$200–$250) — bigger opening for Maine Coons and Ragdolls
• Best budget pick: PetSafe Microchip Cat Flap (~$90–$110)
• Best for mixed indoor/outdoor households: SureFlap DualScan (~$180–$220) — reads chips on the way out too
• Best app-controlled: SureFlap Connect (~$220–$260) — curfews and notifications on your phone
• Best collar-tag alternative: Cat Mate Elite 355 (~$80–$100) — if your cat's chip isn't readable
Everything below explains why, including the chip standards that trip people up in the US.
Shop Microchip Cat Flaps on Amazon:
Manual Cat Flaps:
First: Will It Read Your Cat's Chip?
This matters more in the US than almost anywhere else, because three chip standards are in circulation here.
• 15-digit ISO (FDX-B), 134.2 kHz — the international standard, used for most US implants since roughly 2010. Every microchip cat door on this page reads it.
• AVID, 125 kHz (9 or 10 digits) — still very common in older US pets.
• Trovan / Destron 125 kHz — less common, but out there.
SureFlap models read all three. PetSafe reads FDX-B and most AVID chips. That single fact is why SureFlap is our default recommendation in the US — you don't need to know your cat's chip history for it to work.
If you do know the number, run it through our microchip compatibility checker before you buy. If the chip turns out to be unreadable, every one of these doors will also work with a manufacturer RFID collar tag.
1. SureFlap Microchip Cat Door — Best Overall
Price: ~$130–$160 · Batteries: 4× AA · Real-world life: 8–12 months · Flap opening: 5 5/8" W × 4 3/4" H
This is the model we fit most often, and the one that generates the fewest callbacks. It reads any standard chip (ISO, AVID, Trovan), stores up to 32 pets, and has a 4-way manual lock so you can set in-only, out-only, both or neither without touching an app.
What we like: the reader is genuinely reliable, batteries are cheap AAs you already own, and the door mounts into wood, vinyl, composite, screen doors and (with a new pane) glass. Available in white, gray and brown so it can be matched to your door.
What to watch: a cat over about 13 lb will find the opening tight — size up to the Pet Door below. No app; if you want curfews on your phone, see the Connect.
2. SureFlap Microchip Pet Door — Best for Large Cats & Small Dogs
Price: ~$200–$250 · Batteries: 4× C · Real-world life: 10–14 months · Flap opening: 6 11/16" W × 7" H
Same electronics as the #1 pick, larger frame and opening. This is the right choice for Maine Coons, Ragdolls, Norwegian Forest Cats, British Shorthairs over 13 lb, and for small dogs — Chihuahuas, Yorkies, Dachshunds, small terriers.
What we like: the only mainstream microchip door that big cats walk through rather than squeeze through. C cells last noticeably longer than AAs.
What to watch: a bigger cutout means a bigger commitment — measure twice, and in a glass door confirm the frame can take the wider unit before ordering.
3. PetSafe Microchip Cat Flap — Best Budget Pick
Price: ~$90–$110 · Batteries: 4× AA · Real-world life: 6–10 months · Pet opening: ~5.6" × 5.6"
PetSafe is the best-known pet door brand in the US and their microchip model is a solid, cheaper alternative. It reads FDX-B and most AVID chips, stores up to 40 pets, and has a 4-way lock.
What we like: saves you $40–$50, easy US parts and warranty support, widely stocked.
What to watch: shorter battery life in practice, a slightly smaller opening than the SureFlap, and no Trovan support. If you don't know your cat's chip standard, spend the extra on the SureFlap.
4. SureFlap DualScan — Best for Mixed Indoor/Outdoor Households
Price: ~$180–$220 · Batteries: 4× C · Real-world life: 10–12 months
DualScan reads the chip on the way out as well as in, so you can let one cat roam while another stays indoors — the classic problem in a household with one senior or medical cat and one outdoor cat.
What we like: nothing else mainstream solves the indoor/outdoor split. Same reliable SureFlap reader.
What to watch: the outward scan adds a short delay that nervous cats dislike for the first few weeks. Overkill — and double the price — if all your cats go outside.
5. SureFlap Connect — Best App-Controlled Cat Door
Price: ~$220–$260 (hub included) · Batteries: 4× C · Real-world life: 6–9 months
The Connect adds a Wi-Fi hub and the Sure Petcare app: curfews on a schedule, lock and unlock from your phone, and a log of every entry and exit.
What we like: the curfew feature alone is worth it if you want your cat in before dark, and the in/out log tells you fast when something is wrong with your cat's routine.
What to watch: shorter battery life, a hub that needs to sit within decent 2.4 GHz range, and app dependence for the smart features — the microchip access itself keeps working if your internet drops.
6. Cat Mate Elite 355 — Best Collar-Tag Alternative
Price: ~$80–$100 · Batteries: 4× C · Selective entry: RFID collar tag (not microchip)
Worth knowing about for two situations: your cat's chip can't be read by any microchip door, or you want a timer-controlled door on a budget. The Elite 355 uses a small RFID tag on the collar instead of the implanted chip, and includes a built-in timer.
What to watch: a collar tag can be lost, and a cat that slips its collar is locked out. Always our second choice behind a true microchip door.
Which Microchip Cat Door Should You Buy?
How we'd choose, in one line each:
• Average cat, average door → SureFlap Microchip Cat Door
• Cat over 13 lb, or a small dog → SureFlap Microchip Pet Door
• Lowest price that still works properly → PetSafe Microchip Cat Flap
• One cat in, one cat out → SureFlap DualScan
• You want curfews and alerts on your phone → SureFlap Connect
• Chip can't be read → Cat Mate Elite 355 with a collar tag
All of them run on batteries only — none need wiring — and all of them can be installed by a competent DIYer in a wood or vinyl door. Glass is the exception: see below.
Installation: What It Costs and When to Call Someone
Wood or vinyl door: a confident DIY job. Trace the template, cut with a jigsaw, screw the two halves together. Two hours at a relaxed pace.
Steel or metal-clad door: doable, but plan for metal interference — the reader is RFID and metal detunes it. Use a plastic spacer behind the frame and keep the unit away from reinforcement bars.
Glass door or sidelight: do not attempt this yourself. Tempered glass cannot be cut — it shatters. The only correct method is ordering a new tempered pane with the opening pre-cut and swapping the whole unit into the existing frame. A US glazier typically charges $300–$600 for the pane plus fitting, depending on size and whether it's insulated.
Screen doors and walls: both are fine with the manufacturer's mounting adapter or tunnel extension kit.
In the UK we do this work ourselves — get a free quote. In the US, ask a local glazier for the glass work and handle the rest yourself.
More reading: Microchip cat door not working? 7 fixes.