Fits Your Existing Lock - Locked Doors Keep Insurers Happy

Nothing Drilled • Free returns • 1-Year warranty

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Works with Matter

Thumb Turn Starter Pack

£79.99

Multi-door offer: Additional Monitor Packs are 10% off at the basket when added with this starter pack.

The complete starter pack to monitor your Thumb Turn door lock. Know if your door is locked from anywhere using the Locksure app.

What’s In The Box

  • ✓ Thumb Turn Monitor
  • ✓ Display Hub
  • ✓ USB Cable & Mounting Brackets
  • ✓ Free Mobile App Access
Easy Install
1.5 Year Battery
App Control
Alexa Ready
Monitor only, not a smart lock.
Locksure cannot unlock your door remotely — making it more secure than smart locks.

Technical Specifications


  • Fits over the profile of exposed barrel (must be at least 1mm exposed)

  • Single device monitors locking and unlocking from both sides of the door

  • Display Hub shows status of up to 4 doors + connects to Mobile App

  • Visual LED alerts to indicate lock/unlock actions

  • Bluetooth Low Energy Radio

  • 1.5 year battery life (CR2032 coin cell)

  • Ready for open/close detection (magnet accessory required)
Locksure Thumb Turn Monitor Installation

Customer Reviews

“The visual flash of the LEDs alone when I lock the door really stick in my memory. Locksure has been on my door for over six months now and I want to keep it!”

— Jason, Stevenage

“We have a three story house and, just before bed, I get paranoid if I remembered to lock the door. No more with Locksure, I just check the app and have peace of mind.”

— Belinda, Slough

“The history feature really helps me get to the truth of when the kids came in and out of the house, even when I am in the office!”

— Angela, Hartford

Weight 0.12 kg
Dimensions 18 × 13 × 2 cm

Not Sure? Email a picture of your lock to - [email protected]