Locksure Door Lock Sensor, Lock Status Monitor for UK Euro Cylinder Locks, Matter Over Thread, Requires Matter Hub, Works with Apple Home and Google Home (Key Turn)

• REQUIRES A MATTER HUB YOU ALREADY OWN: works through Apple Home (needs a HomePod or Apple TV 4K) or Google Home (needs a Nest Hub 2nd gen or Nest Hub Max). No hub, no notifications - if you do not own one, choose the Locksure Starter Pack instead.
• KEYS BOTH SIDES? THIS IS THE ONE THAT FITS: retrofit smart locks need a thumb turn to grip, so a key-both-sides euro cylinder means a locksmith and new keys. This twin pack fits your door as it is, one sensor each side, and your keys stay.
• KNOW YOUR DOOR IS LOCKED: ends the doubt at the end of the road - did I lock it? Two sensors monitor one door and report every lock and unlock straight into the Apple Home or Google Home app. Not a smart lock - no motor, no remote way in.
• CHECK IT FITS BEFORE YOU BUY: three checks at your own door. Flat, not curved, lock plate. Over 35 mm from the bottom of the barrel to the edge of the plate. Barrel slightly proud of the plate, not flush. See image 2 for all three with pictures.
• FIT AND FORGET, TWIN PACK: two sensors with replaceable CR2032 batteries included, around 18 months of typical use each, battery levels shown in your smart home app. UK designed and made, patent pending, 1 year warranty and UK support.

Locksure answers one question: is the door locked? Two small sensors, one for each side of the door, fit onto the euro cylinder you already have, detect the key being turned, and report it straight into the Apple Home or Google Home app via Matter over Thread. No extra app and no extra hub to buy. A door with a key on both sides is the door no retrofit smart lock can fit: they need a thumb turn to grip, so fitting one means a locksmith, a new cylinder and new keys. This twin pack fits that door exactly as it is - no motor, no remote way in, nothing drilled, nothing replaced, and your keys work exactly as before. It does need a Matter hub with Thread that you already own: a HomePod, HomePod mini or Apple TV 4K for Apple Home, or a Nest Hub (2nd gen) or Nest Hub Max for Google Home. Without one of these the sensors cannot reach your phone. If you do not own one, choose the Locksure Key Turn Starter Pack instead - it includes its own hub and works on its own. Before you buy, run the three fit checks in image 2 at your own door: a flat lock plate, more than 35 mm from the bottom of the barrel to the edge of the plate, and the barrel protruding slightly rather than sitting flush. If your door has a thumb turn inside instead of a key, choose the Locksure Thumb Turn Monitor. Replaceable CR2032 batteries included, around 18 months of typical use each, with battery levels shown in your smart home app. Want open and closed alerts on the same door? Add the optional Locksure Open/Close Magnet (sold separately) - it is an add-on for a Locksure monitor, one magnet per door, and does nothing on its own. Designed and manufactured in the UK by Lockstate Limited. Patent pending, UK and EU registered designs. 1 year warranty and UK support.