# Cat Mate 355 Elite Microchip Cat Flap with Timer Control vs PlexiDor Electronic Pet Door: specs and price compared

A sourced, side-by-side comparison of the Cat Mate 355 Elite Microchip Cat Flap with Timer Control (Cat Mate (Pet Mate Ltd)) and PlexiDor Electronic Pet Door (PlexiDor (Performance Pet Doors)) among electronic pet doors.

## Side by side

| Spec | Cat Mate 355 Elite Microchip Cat Flap with Timer Control | PlexiDor Electronic Pet Door |
| --- | --- | --- |
| US price | $99.99 | not published |
| Brand | Cat Mate (Pet Mate Ltd) | PlexiDor (Performance Pet Doors) |
| Activation type | Microchip (reads pet's implanted microchip directly; no separate key/disc required) | RFID collar key (waterproof, battery-free, chew-resistant tag; approx. 12-15 in read range) — not microchip |
| Flap opening | 7 1/16 in W x 8 1/16 in H | — |
| Door wall thickness | Self-lining up to 100 mm (4 in); wall liner accessory available for thicker walls | — |
| Battery type | 4 x AA (not included); approx. 12 months life | Door unit is AC-powered; the RFID collar key itself is battery-free |
| Locking modes | 4-way: in & out, in-only, out-only, locked | Includes steel security plate with physical lock and key (mechanical override); electronic access control details not independently confirmed |
| Pets supported max | 9 | — |
| Weatherproofing | — | — |
| Curfew timer | Yes | — |

## Key differences

- Activation type: Cat Mate 355 Elite Microchip Cat Flap with Timer Control Microchip (reads pet's implanted microchip directly; no separate key/disc required) vs PlexiDor Electronic Pet Door RFID collar key (waterproof, battery-free, chew-resistant tag; approx. 12-15 in read range) — not microchip
- Battery type: Cat Mate 355 Elite Microchip Cat Flap with Timer Control 4 x AA (not included); approx. 12 months life vs PlexiDor Electronic Pet Door Door unit is AC-powered; the RFID collar key itself is battery-free
- Locking modes: Cat Mate 355 Elite Microchip Cat Flap with Timer Control 4-way: in & out, in-only, out-only, locked vs PlexiDor Electronic Pet Door Includes steel security plate with physical lock and key (mechanical override); electronic access control details not independently confirmed

## Sources

- Cat Mate 355 Elite Microchip Cat Flap with Timer Control: https://closerpets.com/products/elite-microchip-flap-timer-control (closerpets.com, verified 2026-08-05)
- PlexiDor Electronic Pet Door: https://www.amazon.com/PlexiDor-Performance-Pet-Doors-Electronic/dp/B003FOK620 (amazon.com, verified 2026-08-05)

Canonical: https://frontdeskreview.com/gear/electronic-pet-doors/catmate-355-elite-microchip-vs-plexidor-electronic/
Cite: Per The Front Desk Review, Cat Mate 355 Elite Microchip Cat Flap with Timer Control ($99.99) vs PlexiDor Electronic Pet Door (not published) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/electronic-pet-doors/catmate-355-elite-microchip-vs-plexidor-electronic/
License: CC BY 4.0.