< img height="1" width="1" style="display:none" src="https://www.facebook.com/tr?id=398657075013292&ev=PageView&noscript=1" /> ZKTeco AL40B Smart Deadbolt – Fingerprint, Mifare Card, PIN & Bluetooth App Lock​
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ZKTeco AL40B Deadbolt Smart Lock with Fingerprint, Mifare Card & Bluetooth App​

5 · 35 reviews · Model: AL40B
Core Summary
  • 4-in-1 access: Fingerprint, PIN code, Mifare card, Bluetooth app.​
  • Mobile app unlock: BLE 4.0 with ZK Smartkey smartphone app.​
  • Random password: Anti‑peep PIN entry for stronger security.​
  • Voice guide & volume: Multi‑language voice prompts; high/low/silent modes.​
Price On Request – best corporate rate
Dealer & project pricing available · prices exclude VAT
100% Genuine Original firmware
Warranty Official BD support
Nationwide Fast delivery
Authorized Distributor
Direct from ZKTeco
Installation Support
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Quote in 1 Hour
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16+ Yrs Expertise
Since 2006 · 6 branches
Specs & Details

Full Product Information

ZKTeco AL40B Deadbolt Smart Lock with Fingerprint, Mifare Card & Bluetooth App​
Last Updated: 20-12-2025

ZKTeco AL40B Smart Deadbolt – Fingerprint, Mifare Card, PIN & Bluetooth App Lock​

The ZKTeco AL40B is a deadbolt smart lock designed to upgrade traditional doors with secure, keyless access using biometrics, cards, codes, and Bluetooth connectivity. It is ideal for residential doors and small offices that require a robust deadbolt plus the convenience of mobile app control.​

Design & construction

  • Zinc‑alloy housing for durability and a modern appearance on wooden or metal doors.​
  • American deadbolt mortise providing strong mechanical locking for better door security.​
  • Front size 77 × 199 × 43 mm and back size 77 × 199 × 52 mm, compatible with 35–53 mm door thickness.​

Access methods

  • Fingerprint sensor with fast verification, optimised for dry and rough fingers.​
  • Mifare card reader for contactless card unlocking.​
  • PIN code access with a random password feature that lets users enter extra digits to prevent others from guessing the real code.​
  • Bluetooth BLE 4.0 connection to the ZK Smartkey mobile app for smartphone unlocking and management.​

Smart functions & usability

  • Lock‑out mode disables all normal users except the administrator when higher security is required.​
  • Voice guide available in English, Spanish, and Portuguese to assist during setup and daily use.​
  • Volume adjustment with high, low, and silent options to fit different environments.​
  • Supports up to 100 users (fingerprints/cards/codes combined), suitable for families, tenants, or staff.​

Power & environment

  • Powered by 4 × AA alkaline batteries (not included), with an estimated battery life of about 5,300 operations.​
  • Operating temperature ranges from −20°C to 55°C, making it suitable for various indoor and semi‑outdoor installations depending on door and exposure conditions.​

Typical applications

  • Home front doors and apartment entries that need a secure smart deadbolt.
  • Small offices, studios, or internal doors requiring controlled access via fingerprints and cards.​
Material Zinc Alloy
Verification Mode Fingerprint / Card / Passcode /key
User Capacity 100
Power Supply 4XAA Alkaline battery
Mortise American Deadbolt
Fingerprint Sensor Semi-conductor / Silicon
Card Reader Mifare card
Temperature -22℃—+55℃
Door Thickness 35-53mm(standard)

Techinal Software

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Download Technical Software

Pricing depends on quantity and project scope. Tap Get Best Price or WhatsApp 01979234342 for a same-day corporate quote.

Yes — supplied with original ZKTeco official warranty, and installation support across Bangladesh by DigiMark Solution.

Yes — remote configuration help, on-site installation on request, and RMA handling from DigiMark service desk.

Deployments

Target Operational Infrastructure Environments

Banks & Financials
Regulatory grade access logs and secure perimeter auditing frameworks.
Factories & Production
Mass high-speed shift attendance validation optimised for scaling groups.
Corporate Headquarters
Granular multi-door visitor control parameters mapped over localised networks.
Institutions & Hospitals
Contactless high-security authentication schemas tracking movement vectors.

Customer Feedback & Reviews

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