Door Lock Monitor
Smart Reminder
Smart Door Lock Monitor: Instantly Know If Your Door Is Locked
Via colour LED, Digital Display Hub and Mobile Phone Alerts.
Does not control your lock - maximum privacy.




Door Lock Monitor
Door Lock / Unlock Monitoring - Our retrofit smart door lock sensor monitors thumb turn or key turn movements, providing real-time door lock status updates. This keyless entry door lock status monitor ensures you never forget to secure your home. It works seamlessly with your existing door knob lock and can detect movements in the door lock actuator for accurate monitoring.
Coloured Light - A coloured light is triggered for each action, creating a visual memory aid to help you remember the sequence.
Bluetooth - send the lock sensor info to the Hub and App.
Launch Offer
20% OFF Starter Packs
Early Customers — Limited Time Only!
USE CODE:
EARLY20
Launch Offer
20% OFF Starter Packs
Early Customers — Limited Time Only!
Launch Offer
20% OFFStarter Packs Early Customers
– Limited Time Only!
USE CODE:
EARLY20
– Limited Time Only!

Stick the Door Lock Monitor to the Handle

Stick the Magnet to the Thumb Turn

Ready to Go!
Look Across The Room For Peace Of Mind
Stay Instantly updated on the Display Hub with no need to switch to the Door Lock Monitoring app.
Connect the Hub to WiFi for mobile app functionality, or keep it air-gapped for a privacy focused approach.


Know They Are All Safe At Home
Instantly confirm your family's doors are locked from anywhere in the world.
Instantly know how long doors have been left unlocked.
Know when your home is entered or exited.
Share Doors with your parents to remind them if they have locked their doors too!
Instant Alerts
Even forgot to check the App?
No problem. Switch on Alerts and you will be notified on your smartwatch when the Door Lock Monitor is operated.

Monitor Options
Locksure Monitors are available in two configurations.
Thumb Turn Single Door Lock Monitor - Lock sensor required only on the inside of the door to monitor locking from both sides of the door and send lock status.
Key Turn Double Door Lock Monitor - If you don't have a thumb turn on the inside, then lock sensors are installed on both sides of the door to monitor key turns.
All Door Lock monitors come with a Display Hub, free access to the App and a 1 year warranty.

Home Grown
Locksure is proudly designed and manufactured in the UK, specifically for British families and homes!

Maximum Privacy
Locksure is built with privacy-first principles — no remote unlocking, no listening device – aligning with customers who value simplicity and trust.

Buy With Confidence
Locksure is built to last, with customer support available to assist you whenever you need peace of mind.
Testimonials




Why People Forget to Lock Their Doors
Our brains often run on autopilot, causing us to forget routine actions like locking the door. Stress and distractions make these memory lapses more likely.
OCD, Lock-Checking and Elderly Vulnerability
For some, anxiety or memory issues drive repeated door checking. With support and simple tools, we can improve both security and peace of mind.
Unlocked Doors & UK Burglary Statistics
25% of the time burglars enter through unlocked doors while residents are still at home. Simple habits like locking up every time can prevent easy break-ins.
What's in the pipeline?
We are working away in making locksure better for you. Here are features being developed this year:
- Amazon Alexa
- Google Home
- Apple HomeKit
- IFTTT

Why We Made Locksure
Born out of a real-life necessity, our journey began when we recognised the vulnerability of homes, particularly those of elderly residents, to opportunistic thieves. Our founder's own father-in-law faced the same peril, often forgetting to lock his front door in a neighbourhood targeted by such criminals.
Initially, the idea of investing in a smart lock seemed plausible, but the cost, including installation and an additional hub, made it an impractical choice. Moreover, remote control over the door's locking mechanism seemed less secure. Determined to find a more effective and affordable solution, we crafted a prototype that not only addresses the issue but also prioritises user independence.
Our Locksure Door Lock Monitoring prototype is a game-changer. Instead of relying on an expensive and less secure smart lock, our door lock sensor system sends instant notifications to a user-friendly app whenever the door is left unlocked. This not only serves as a reminder but also allows for quick and simple intervention through a phone call. Our founder's father-in-law greatly appreciates the independence this solution provides, giving him control without sacrificing security.
After successfully implementing Locksure Door Lock Monitor in our own home, the positive response from neighbours was overwhelming. Many expressed interest in how our prototype could help them remember to lock their doors as well. After getting enough made to startup Locksure, we tested the device with our Beta Testers and are now ready to offer Locksure to the UK and soon the rest of Europe.
Join the movement towards enhanced home security with Locksure – the intelligent, affordable, and user-friendly solution that puts you in control. Don't compromise on safety; invest in peace of mind today.
