DESLOC smart door lock K120

If you want entry without reaching for a key, the DESLOC K120 combines fingerprint access, a keypad and app control in one front-door lock. Its built-in Wi-Fi means there’s no hub to add, while the mechanical key backup gives you another way in. The listing promotes a 16-month battery, but the detailed description says up to 13 months of use per charge, so treat battery life as an estimate rather than a fixed interval.

Highlights

You can unlock with a fingerprint, use the keypad, manage the lock through the app or fall back on the mechanical key. The app supports remote locking and unlocking, notifications and access history. Landlord Mode adds group management, shared access and temporary scheduling, which could be useful for a rental or a household where access needs change. Fingerprint data is stored on the device, according to the product details.

The rechargeable battery is listed as 15,000mAh. Battery monitoring and low-battery alerts are included, and a low-battery mode is said to extend standby time. There’s also a built-in Type-C emergency charging cable. The lock is rated IP65 for protection against rain and dust, and the description states BHMA Grade 3, testing for 100,000 open/close cycles and a 24-month warranty for the lock and battery. Those figures provide useful buying context, but they don’t tell you whether the K120 will fit your existing door hardware.

Best use cases

This makes most sense if you want several ways to manage entry without handing out permanent keys. For example, you could share temporary access with a visitor, then use the app’s access history to check activity later. It may suit you if fingerprint entry and remote access are more useful than a basic keypad deadbolt alone.

Given how it is designed, there’s a bit more to manage than with a conventional lock: you’ll need to keep the battery charged and use the app for its connected features. Keep in mind that the product information doesn’t give door-preparation dimensions or confirm compatibility with a specific handleset, so check those details before choosing it. May not be right for you if you want a simple, non-connected lock or need confirmed fit information that isn’t provided here.

Tips for day-to-day use

Set up more than one access method before relying on fingerprint entry as your only routine. Keep the mechanical key somewhere accessible outside the locked area, and pay attention to app battery alerts rather than waiting for the lock to run low. If emergency charging is needed, the listing specifies a 5V/2A charger and advises against laptops, low-power adapters and worn cables. For a rental, temporary access scheduling may be more practical than repeatedly sharing a permanent code.

Before you decide

Does it need a separate Wi-Fi hub? No. The product description says Wi-Fi is built in.

Is there a backup if the battery runs low? It includes a mechanical key backup and a built-in Type-C emergency charging cable.

Does fingerprint information leave the lock? The listing says fingerprint data is stored locally on the device, it doesn’t provide further details about app data handling.

Is it worth it?

The K120 is worth considering when fingerprint access, app-based control and flexible access sharing all solve a real need at your door. It offers more ways to manage entry than a basic keypad-only approach, and its mechanical key backup is a useful alternative when electronics aren’t convenient. The trade-off is that fit details aren’t included, and the battery-life claims differ between the product name and the detailed description. Choose it once you’ve confirmed it suits your door and you’re comfortable maintaining a rechargeable, connected lock, otherwise, a simpler lock with clearly specified fit information may be the more straightforward buy.