Smart Lock – Mortise Lock with Handle (S851)

Fingerprint • Password • Card • Key — Wi-Fi App Control

The QLEUNG S851 is a rugged aluminum alloy smart lock built for hotels, apartments, and offices, offering four flexible ways to unlock and full remote management through the Tuya Smart or TTLock app.

Overview

Crafted from durable black aluminum alloy, the S851 fits doors 38–55mm thick and installs on a standard 5050×22×160mm mortise (other sizes negotiable). It’s CE and RoHS certified, backed by a 2-year warranty, and designed for reliable, everyday access control in multi-unit or commercial settings.

Key Features

Four-Way Unlocking Open with a fingerprint, PIN password, RFID key card, or traditional mechanical key — switch methods as needed.

Wi-Fi App Control Manage the lock remotely via the Tuya Smart or TTLock app: unlock from anywhere, issue temporary codes, and track access activity.

Keyless Convenience Cuts down on lost keys and duplication costs while keeping a mechanical key as backup.

Built for Commercial Use Sized and priced for hotels, apartment buildings, and offices needing dependable, multi-tenant access control.