If you want to stop carrying a front-door key everywhere you go, the DESLOC K120 Wi-Fi Smart Deadbolt delivers keyless convenience, remote management, and biometric security without the steep price tag of premium smart hardware. During DESLOC’s Halloween Sale, the K120 is US$101.99 at DESLOC (down from its regular $119.99 promotional tier and $159.99 MSRP), saving you an extra $18 with an automatic 15% discount. The offer runs from October 21 through November 1, 2026.
What you get for the sale price
The K120 is a smart deadbolt with a curved fingerprint reader and DESLOC’s patented fingerprint algorithm. It supports up to 50 fingerprints, so different household members can enroll their own. Fingerprint data is stored locally on the lock, and the adaptive recognition system is designed to accommodate variations in the prints it reads.
There are four ways to unlock: fingerprint, passcode, app, and mechanical key. With capacity for up to 100 passcodes and two mechanical keys supplied, you have options for guests and a physical backup. You can choose the method that suits the person using the door without making everyone download an app.
Built-in Wi-Fi makes remote control possible without buying a separate hub. The DESLOC App lets you manage access and check activity while away, while Alexa and Google Assistant compatibility supports voice control. Door-status sensing and automatic locking add help with the daily routine of leaving home.
Access sharing and temporary scheduling are useful when someone needs entry for a specific visit. A dog walker or visiting relative can be given access without taking the household’s spare key. For rental use, Landlord Mode adds group management tools. That gives the connected features a practical role even when you prefer to use the fingerprint reader for your own daily arrivals.
Biometric Precision With AI-Powered Curved Fingerprint Sensor
At the core of the K120 is an ergonomically curved scanner driven by DESLOC’s proprietary GPT Fingerprint Smart Algorithm. Unlike standard flat optical readers that struggle with imperfect angles, the curved sensor provides 3D precision biometric recognition with a false acceptance rate of less than 1 in 1,000,000 (<0.0001%).
Adaptive Learning: The onboard machine-learning algorithm continuously refines print recognition over time, ensuring accurate reads for dry skin, damp fingers, worn or shallow ridges, and elderly household members.
Storage & Privacy: The lock stores up to 50 unique fingerprints directly on the local hardware (never on cloud servers), ensuring your biometric data remains private and tamper-proof.
A battery designed for longer intervals
Most smart deadbolts frequently suffer from rapid battery drain, but the K120 solves this with a heavy-duty 15,000mAh rechargeable lithium-ion battery pack:
Extended Endurance: Delivers 13 to 16 months of typical daily operation on a single charge (rechargeable via any standard 5V/2A adapter). DESLOC also backs the battery with a 24-month dedicated support policy and offers replacement packs.
Low-Battery Ultra Save Mode: When power falls below 5%, the lock automatically shifts into an ultra-low standby state that preserves emergency unlocking capability for up to 12 additional months.
Emergency Power Port: An integrated USB Type-C emergency power port on the exterior unit lets you jump-start the deadbolt using a power bank if the battery ever depletes completely.
Versatile Access: 5 Convenient Ways to Unlock
The DESLOC K120 provides five independent access methods to suit every household member and guest:
Biometric Fingerprint: Quick one-touch entry in under a second.
Backlit Touch Keypad: Supports up to 100 custom PIN passcodes, complete with anti-peep decoy digits to prevent onlookers from guessing your combination.
DESLOC Mobile App: Lock, unlock, and manage permissions from your smartphone (iOS or Android).
Smart Voice Control: This modern Wi-Fi smart lock supports Hands-free operation using Amazon Alexa or Google Assistant.
Physical Backup Keys: Two traditional mechanical keys are supplied. The cylinder uses a standard SC1 keyway, meaning extra duplicates can be cut easily at any local hardware store.
These five options ensure you’re exploring convenient methods to securely protect your doors and entire household without fear of theft. You don’t have to bear the inconvenience of carrying multiple keys to access your private spaces.
Direct Wi-Fi Connectivity and Host-Ready Landlord Mode
While many competing smart deadbolts require an external bridge or gateway plugged into a hallway socket, the K120 features integrated 2.4GHz Wi-Fi. It connects straight to your home router right out of the box, unlocking real-time remote capabilities:
Remote Management: Lock or unlock your door from anywhere, receive instant entry push notifications, and monitor real-time door activity logs.
Scheduled & Temporary Access: Issue one-time, recurring, or time-sensitive PIN codes for cleaners, dog walkers, delivery personnel, or visiting family members.
Landlord Mode: Designed specifically for rental properties, Airbnb hosts, and multi-unit managers, this feature provides unified group management tools to set check-in/check-out access windows without physical key handoffs.
Door-Status Sensing & Induction Auto-Lock: The package includes a dedicated Door Contact Sensor (mountable via adhesive backing or screws). Once paired, the lock detects when the door physically swings shut and triggers auto-locking automatically, eliminating the worry of leaving home unlocked.
Rugged Build Quality and 10-Minute Installation
Engineered to endure severe weather and heavy daily use, the DESLOC K120 meets rigid residential hardware benchmarks:
BHMA Grade 3 Certified: Tested to withstand 3,000 N of deadbolt end-pressure and over 100,000 continuous lock/unlock mechanical cycles.
IP65 Weather Resistance: Features heavy-duty dust seals and rain protection, backed by 240 hours of salt spray corrosion testing to perform reliably in humid, coastal, or freezing climates.
Effortless DIY Setup: Installs in roughly 10 minutes using only a standard screwdriver. The unit features automatic door-handing detection, instantly calibrating whether your door swings left or right without manual dip-switch toggling.
Door Compatibility: Fits standard interior and exterior doors with a thickness between 1-3/8″ and 2″ (35mm – 50mm), a 2-1/8″ (54mm) bore hole, and an adjustable backset of 2-3/8″ or 2-3/4″ (60mm / 70mm).
Availability and Warranty
The DESLOC K120 is available in Matte Black and Satin Silver finishes, either as a standalone deadbolt or bundled with matching passage handles and lever sets. It can be ordered through DESLOC’s official web store, Amazon U.S., and Amazon Canada.
Purchases are backed by a 30-day money-back guarantee and a comprehensive 24-month manufacturer warranty. Select the offer for your market and preferred package. All promotional prices are time-limited and subject to availability.
