Smart Lock ZKTeco AL20B Smart Door Lock with Fingerprint, Keypad, RFID & Bluetooth App

ZKTeco AL20B Smart Door Lock with Fingerprint, Keypad, RFID & Bluetooth App

Price: 00 ৳

Status: Stock Out

Product Code: PR00423

Brand: ZKTeco

Model:AL20B

Core Summary

4-in-1 access: Fingerprint, PIN, RFID card, Bluetooth app.
Slim modern design: Thin zinc‑alloy lever for most doors.
High capacity: Up to 100 fingerprints, PINs, and cards.
Emergency ready: 9V backup power port.

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Description

Last Modified On: 22-12-2025

ZKTeco AL20B Smart Lock – Fingerprint, Keypad, RFID & Bluetooth Mobile App Control

The ZKTeco AL20B smart door lock is a multi‑function lever lock that upgrades traditional doors with secure, keyless access. It combines biometric fingerprint recognition, PIN code entry, RFID card access, and Bluetooth app unlocking in one compact device, making it suitable for residential and light commercial use.

Design & build

Slim 30 mm (approx.) thin body for a clean, modern look on most doors.
Zinc‑alloy construction for durability and a premium finish.
Reversible handle that can be installed on both left‑hand and right‑hand opening doors.

Access methods

Fingerprint sensor for quick and secure biometric unlocking.
Touchscreen keypad for numeric PIN codes, with random “virtual digits” to prevent people from guessing your real code by fingerprint smudges.
RFID card reader allowing registered proximity cards or tags to open the door.
Bluetooth connection to a mobile app so you can control access directly from your smartphone.

Smart functions & security

Lock‑out mode that blocks general users and only allows admin access when enhanced security is needed.
Anti‑peep password entry where you can add random digits before or after the real PIN to stop shoulder‑surfing.
Low‑battery warning to remind you to replace the batteries in time.
Illegal‑operation alarm that triggers when repeated wrong attempts are detected.

Power & backup

Powered by standard AA batteries (user‑replaceable), providing months of normal operation.
The external 9V emergency power interface lets you temporarily power the lock from outside if the internal batteries are drained, so you can still unlock and replace them safely.

Application scenarios

Apartments and private homes wanting convenient, keyless entry with multiple users.
Small offices and studios where staff need fingerprint or card access.
Airbnb and rental properties where codes and users change frequently and need easy management

General Informations

Material	Zinc Alloy
Mortise Type	American mortise (AL20B), German mortise (AL20DB)
Door Thickness	30-54mm (standard)
User Capacity	100
Password Capacity	100
Fingerprint Capacity	100
Wireless Module	BLE4.0
Power Supply	4×AA Alkaline battery (NOT supplied)
Dimensions	Back: 7317927mm (wld), Front: 7317937mm (wld)