TidyTech Motion Sensor Smart Pet Door Size M - Medium
Please note these items are ordered from the manufacturer for delivery to you and may take up to 28 days for delivery.
A £25 restock fee is applied upon return of these items
Door mount only: for doors 30–56mm thick. Not suitable for walls or glass.
1. Product Overview
The TidyTech Motion Sensor Smart Pet Door opens automatically as your pet approaches. There's no collar, tag or microchip to fit, and no doorbell to learn. A PIR motion sensor detects movement, the door lifts, your pet walks through, and the door closes again behind them.
It is ideal for pets that are hard to train, older pets, and pets with poor sight or hearing. Size M suits small to medium dogs and larger cats (see the size guide below).
The detection distance can be adjusted from roughly 2 to 7 metres, and the sensor rotates 360° so you can aim it. Please note the sensor reacts to any movement in range, so people or other animals passing by can also open the door. Use the four smart modes (In Only, Out Only, In & Out and Locked) to control access, for example by locking the door at night.
The Smart Anti-Pinch Safety System stops the door and lifts it again if your pet is underneath as it closes. The rust-resistant aluminium frame and reinforced PVC flap withstand up to 50kg, and the windproof, insulating seal keeps out draughts. A rechargeable lithium battery in the control box gives up to 4,000 open/close cycles per charge via USB.
2. Technical Specification
| Product name and model | TidyTech Motion Sensor Smart Pet Door Size M - Medium (TTMSM) |
| Activation | PIR motion sensor. No collar, microchip or doorbell needed |
| Detection distance | Adjustable, approx. 2–7m (varies with temperature, mounting height and surroundings). Sensor rotates 360° |
| Colour | White (aluminium frame with PVC door) |
| Flap opening size | 203mm wide by 305mm high |
| Overall frame size | 264mm wide by 419mm high |
| Door cut-out size | 222mm wide by 368mm high |
| Maximum pet size | Up to 152mm wide and 254mm from top of back to bottom of chest |
| Door thickness | 30mm to 56mm |
| Compatible door types | Wood, metal (steel/aluminium), PVC/uPVC and composite doors; interior or exterior |
| Not suitable for | Walls or glass |
| Control box clearance | 214mm wide by 25mm high above the frame |
| Power | Rechargeable lithium battery in the control box, USB charging cable included. Up to 4,000 open/close cycles per charge |
| Entry/exit control | 4 modes: In Only, Out Only, In & Out, Locked |
| Safety features | Smart Anti-Pinch Safety System: the door stops and reverses if an obstruction is detected while closing |
| Frame and flap | Rust-resistant aluminium frame with reinforced PVC flap (withstands up to 50kg) |
| Weatherproofing | Windproof, thermally insulating seal |
| Installation | Approx. 30–60 minutes DIY (cutting template and fixings included), or professional fitting by Pet Flaps UK |
| Warranty | Refer to manufacturer for further information |
3. Size Guide

Want it fitted? Our sister company Pet Flaps UK installs TidyTech doors nationwide.
Pet -Tek Pet Doors Superior designs are just what you have been searching for. Our Cat Doors and Dog Doors are extremely simple to install, look attractive and once fitted into the door or wall of your home you will be happy with the look. With a Pet -Tek pet door, you can look forward to years of trouble free use. Your cat or dog will love them and you will love them also, because they have been designed to be pet friendly and keep your pet secure.
From our extensive range there is a door style and size to suit everyone whether it is to be installed into a door, a wall or glass. All pet sizes are catered for, from large to small. If you are concerned about “unwanted pets” intruding into your home then our multi-magnetic doors which require no batteries could be the solution. Click on catdoors and select G-MCD or W-MCDW and W-MCDB for more information.
Our superior range of cat doors and dog doors help eliminate problems commonly associated with pet doors, such as broken flaps and locking dials, rusting screws, too small a flap for the average cat, whilst maintaining focus of product appeal and reliability.
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