DESLOC B200 Fingerprint Smart Door Lock review: A versatile biometric deadbolt with 50-fingerprint and 150-PIN support

DESLOC B200 Fingerprint Smart Door Lock delivers fast and convenient everyday access, with fingerprint recognition designed to unlock door in less than 0.3 seconds

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

The DESLOC B200 Fingerprint Smart Door Lock is a versatile keyless entry solution designed to modernise residential security without requiring complicated hardware overhauls. Tailored for busy homeowners, rental property managers, or anyone looking to ditch traditional metal keys, this electronic deadbolt offers a multi-layered approach to access control. Whether you prefer biometric recognition or smartphone management, it bridges the gap between everyday convenience and robust home protection.

At the core of the experience is an AI-powered fingerprint sensor integrated directly into the exterior unit, capable of recognising stored prints in under 0.3 seconds. Beyond biometrics, the system accommodates multiple entry methods including custom PIN codes, physical backup keys, IC cards, and app management.

Using the TTLock app via Bluetooth, users can generate temporary access codes for guests or service providers, monitor access logs, and configure auto-locking parameters. For remote access capabilities outside of Bluetooth range, an optional G2 WiFi gateway can be integrated into the system.

Specifications

  • ASIN: B0D9JX1Y9Z

  • Lock type: Biometric Deadbolt

  • Material: Aluminum Alloy

  • User capacity: Up to 50 fingerprints and 150 PIN codes

  • Connectivity: Bluetooth (WiFi remote control requires optional G2 Gateway)

  • Weatherproofing: IP54 water-resistant rating

  • Power source: 4 AA batteries

  • Battery life: Up to 12 months

  • Compatibility: Standard US left- and right-hand doors

Performance

The DESLOC B200 Fingerprint Smart Door Lock delivers fast and convenient everyday access, with fingerprint recognition designed to unlock the door in less than 0.3 seconds. It also supports PIN codes, physical keys, eKeys, fobs, and app control, giving users multiple ways to enter without relying on a single unlocking method. The lock uses four AA batteries and is rated for up to 12 months of battery life, depending on usage, while a USB-C emergency power port provides a backup option when the batteries run low.

For durability and everyday security, the B200 features IP54 water resistance, auto-lock, privacy mode, anti-peeping PIN protection, and a robust lock cylinder. DESLOC states that it can operate in temperatures from -30°C to 70°C, making it suitable for a range of environmental conditions. Bluetooth app control works within approximately 2 metres, while remote access requires the optional G2 Gateway. Overall, its combination of quick biometric access, multiple entry methods, battery efficiency, and protective features makes the B200 a practical option for modern home and rental-property security.

Today's best deals 

DESLOC B200 Fingerprint Smart Door Lock — View at Amazon

Reasons to buy

  1. Blazing-fast biometric sensor unlocks the door in less than 0.3 seconds for instant, touch-based entry.
  2. Flexible access methods include fingerprint data, PIN numbers, IC cards, physical keys, and smartphone control.
  3. App-enabled management allows you to generate scheduled temporary codes and review activity logs remotely.
  4. Anti-peep password protection lets you input random digits before or after your actual PIN to secure your code from onlookers.
  5. Simple 15-minute DIY installation requires only a screwdriver without extra drilling or professional assistance.

Reasons to avoid

  1. Full remote control over WiFi requires purchasing the G2 Gateway separately.
  2. IP54 weatherproofing handles standard rain and dust, but severe exposure may benefit from a protected porch overhang.
  3. Initial app syncing and gateway setup can occasionally require troubleshooting depending on home router signal strength.

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.