When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

The DESLOC B200 Fingerprint Smart Lock offers a feature-packed entry solution tailored specifically for busy households, parents, and rental property managers. Combining an electronic deadbolt mechanism with an internal child-safe knob design, this lock prevents young children or pets from accidentally wandering outside while maintaining quick, effortless access for adults. Its sleek matte black finish fits seamlessly alongside modern architectural accents, replacing standard deadbolts without requiring complex structural modifications.
Unlocking options are comprehensive, providing up to 8 entry modes including an ultra-fast biometric fingerprint reader that unlocks in under 0.3 seconds using self-learning AI technology.
Users can also gain access via anti-peep PIN codes, contactless RFID key fobs, traditional physical backup keys, or the TTLock mobile app over Bluetooth. For remote access management and voice controls via Amazon Alexa or Google Assistant, the system can pair with an optional Wi-Fi gateway.
Specifications
-
ASIN: B0G8HXSM85
-
Unlock methods: Fingerprint, PIN Code, TTLock App, Key Fob, Physical Key, Voice Control
-
Response time: Under 0.3 seconds (Fingerprint Reader)
-
User capacity: 50 Fingerprints, 150 PIN Codes
-
Connectivity: Bluetooth (Wi-Fi requires optional G2 Gateway)
-
Material: Aluminium and Zinc Alloy
-
Waterproof rating: IP54
-
Operating temperature: -30°C to 70°C (-22°F to 158°F)
-
Power source: 4 x AA Batteries
-
Emergency power port: USB Type-C
-
Warranty: 12 Months
Performance
The DESLOC B200 Fingerprint Smart Lock delivers convenient everyday performance, with multiple unlocking options including fingerprint, PIN code, key fob, physical key, and app access. Users particularly appreciate the fingerprint entry when their hands are full, while the auto-lock feature adds an extra layer of convenience and security by locking the door automatically after a set period.
Installation and setup are generally considered easy, with several users reporting that the lock can be installed and configured quickly. The lock also offers solid value for its price, with useful features that make it a practical upgrade for everyday home access.
However, fingerprint recognition and code entry may not be equally reliable for every user, with one review reporting issues with both methods. The soft finish on the door knob can also be prone to scratching with use, while installation may require some patience depending on the door.
Despite these minor drawbacks, the B200 is praised for its straightforward operation, flexible access methods, convenient battery replacement, and dependable overall functionality. Its combination of fingerprint access, keypad entry, auto-locking, and affordable pricing makes it a strong option for users looking for a versatile keyless entry solution.
Today's best deals
DESLOC B200 Fingerprint Smart Lock — View at Amazon
Reasons to buy
-
Fast self-learning AI fingerprint scanner registers scans in under 0.3 seconds for instant keyless entry.
-
Integrated child and pet-safe interior knob design prevents accidental outdoor wandering.
-
Flexible 8-in-1 unlocking mechanisms ensure reliable access for family members, guests, and tradespeople.
-
Emergency USB-C port provides instant backup power in the event of total battery depletion.
Reasons to avoid
-
Remote Wi-Fi management and smart home voice integrations require purchasing a separate gateway.
-
Four AA batteries needed for standard power are not included in the main packaging.
-
IP54 rating is sufficient for light rainfall but less rugged than IP65-rated alternatives.
Rehan Shahid is a technology and business journalist specialising in automobiles, emerging technologies, industry trends, and global markets. His reporting explores how innovation is changing businesses and influencing the way consumers interact with technology.
His automotive coverage includes new vehicle launches, electric and connected mobility, emerging technologies, and the strategies shaping the global automobile industry. He also covers consumer technology, artificial intelligence, cybersecurity, smart home devices, and connected ecosystems.
A key area of his expertise is smart security technology, including deadbolts, smart locks, access control systems, surveillance devices, and home automation. Through this coverage, he examines the evolution of modern security solutions and their practical relevance for consumers.
Rehan also reports on startups, acquisitions, financial performance, corporate strategies, and policy developments. His approach combines technology reporting with business context, helping readers understand not only what is changing, but why it matters.
Committed to factual and accessible journalism, Rehan focuses on delivering clear insights into the technologies, businesses, and trends shaping the future.