DESLOC K120 Smart Door Lock with Fingerprint Access, Built-In Wi-Fi and Two Levers

Fingerprint access lets you unlock the door without reaching for a key, while built-in Wi-Fi adds remote control through the app. The DESLOC K120 combines a deadbolt with a two-lever handle set, plus a mechanical key for another way to enter.

Its rechargeable battery is advertised for up to 16 months under a stated daily-use pattern. The product details also cite up to 13 months, so treat runtime as an estimate rather than a fixed interval.

Size & fit

The K120 is listed at 15.2 x 22.9 x 20.3 centimetres and uses an aluminium body with a matte black finish. The set includes a deadbolt and two-lever handle, so it is intended as a combined lock and handle arrangement rather than a deadbolt-only replacement. Since the product details do not specify door thickness or installation dimensions, compare the measurements and included parts with your door before choosing it.

What you’ll notice day to day

Fingerprint unlocking is the main convenience feature. DESLOC says its recognition system adapts over time and supports fingerprints that are dry, wet, shallow or worn, the fingerprint data is stored on the lock. You can also use app-based remote locking and unlocking, receive notifications and check access history. Built-in Wi-Fi means no separate hub is required for those features.

For a rental property or a household with several users, Landlord Mode is described as supporting shared access and temporary schedules. That is a different approach from a basic key-only deadbolt: it adds app management and fingerprint entry, but also makes battery status and app access part of everyday ownership. A mechanical key is included as an alternative entry method. The lock also has low-battery alerts and a Type-C emergency charging cable.

The stated battery duration varies across the product information: one section says up to 13 months, while another gives up to 16 months under a specific daily-use pattern. Actual runtime will depend on use, so the longer figure should not be treated as guaranteed. Buyers have described installation as easy and spoken positively about construction, those reports are individual impressions, not a substitute for checking the fit and setup requirements for your door.

Product specs

• Name: DESLOC K120
• Type: Deadbolt with small handle set
• Material: Aluminium
• Colour: Black
• Dimensions: 15.2 x 22.9 x 20.3 centimetres
• Connectivity: Built-in Wi-Fi
• Battery: Rechargeable 15,000mAh battery, advertised for up to 16 months under stated use
• What’s included: Deadbolt, latch, two-lever handle, mechanical key, door sensor, mounting screws and user manual

The manufacturer states IP65 protection and BHMA Grade 3, and reports testing for 100,000 open/close cycles, 3000N deadbolt strength and 240-hour salt spray resistance. These stated ratings and test claims may help when comparing it with simpler residential locks, but they do not establish suitability for every door or installation.

Practical questions

Does it need a separate Wi-Fi hub? No. The product has built-in Wi-Fi for app functions, including remote access, notifications and access history.

Can you still use a key? Yes. A mechanical key is included alongside fingerprint and app-based access options.

What happens when the battery runs low? The lock provides low-battery alerts, and the product details describe a Type-C emergency charging cable. The advertised runtime differs between sections, so plan around battery alerts rather than relying on a precise month count.

Buying verdict

You’ll like it if you want fingerprint entry, app controls and a handle set in one residential deadbolt package, especially where access needs to be shared or managed remotely. Not the best choice if you want a straightforward key-only replacement or cannot confirm that the included handle and lock dimensions suit your door. If you prioritize a higher security grade, compare the stated BHMA Grade 3 rating with the requirements for your installation before deciding.