If you have a thumb-turn or Euro cylinder key-turn lock, Locksure will fit. The monitor attaches to your existing lock with no drilling required.

No. Locksure is a retrofit sensor that reads your lock position. It doesn't operate or replace your existing lock – it simply monitors it.

No. Unlike smart locks, Locksure cannot remotely lock or unlock your door. It only monitors your lock status. This makes it more secure – there's nothing to hack to gain entry.

Simple stick-on installation. No drilling, no tools, no damage to your door or lock. Setup takes just a few minutes.

Locksure monitors have a battery life of 1 year or more under typical use.

The hub stores your lock status locally. When your connection is restored, the app and cloud updates resume automatically.

Yes! Ask Alexa "Is my front door locked?" and get an instant answer.

Absolutely. Because Locksure doesn't modify your door or lock, it's perfect for renters. Simply remove it when you move out with no damage left behind.

Each Starter Pack includes the hub required for connectivity. The Thumb Turn pack includes one monitor, while the Key Turn pack includes two monitors – one for each side of the door. Additional monitors can be added for other doors.

Smart locks replace your lock and can potentially be hacked to gain entry. Locksure is monitor-only – it tells you if your door is locked but cannot unlock it remotely, making it inherently more secure.