LEONDARX / Narrow Frame Smart Lock
LJ02-B Semi-Automatic Narrow Frame Smart Lock
The LJ02-B is a semi-automatic narrow-profile smart lock built for practicality.
Access control. For the door profile.
Explore the application, daily use and installation requirements for this model.

A slim profile, properly installed.
Plan the lock on the door’s aluminium stile, with the handle and strike positioned for the opening direction.
- Core Design: Semi-automatic narrow-frame operation, optimized for standard door profiles.
- Unlock System: Supports fingerprint, IC card, password and mechanical key access through a unified control logic.

Define everyday access.
Select from this model’s documented access functions, then confirm credential management and the required version.
- Battery Powered: 4 AA batteries deliver consistent runtime, with clear power status indicators.

Match the lock to the door.
Check profile width, door thickness, lock body, strike and handle clearance. Confirm the exterior and interior assemblies together.
0Review model documents ↗The details behind the selection.
Specifications apply to this model. Confirm the hardware revision, optional functions and installation requirements before ordering.
The original manufacturer provides this model’s specifications as illustrated detail sheets. Open the original material below or request a matching technical sheet.
Open model material ↗COMPLIANCE DOCUMENTATION
Check the evidence for your market.
Request documents that identify the exact model and test scope. Published manufacturer material is a reference; confirm applicability to your destination market and ordered configuration.
Request compliance documents ↗LJ02-B Semi-Automatic Narrow Frame Smart Lock
Confirm applicable reports and declaration documents with the project team.Before you specify.
Installation and ordering questions for this model.
What should I confirm before ordering this model?+
Confirm the hardware revision and installation configuration for LJ02-B Semi-Automatic Narrow Frame Smart Lock. Use the original model material below and request the matching technical sheet.
Will this lock fit my existing door?+
Check the door construction, thickness, opening direction, lock body and fixing pattern against the selected model. A site assessment and the matching drawing are needed before reusing existing door preparation.
Which documents are available for project review?+
Original manufacturer images and model detail sheets are retained below. Request current installation instructions, version-specific specifications and any applicable compliance documents for your market and ordered configuration.
Original model material.
Manufacturer views, drawings and original detail sheets remain available for a technical review.
View manufacturer images & drawings+
Original manufacturer description+
Original source material for reference. General service terms and version-dependent claims require confirmation for your order.
- Core Design: Semi-automatic narrow-frame operation, optimized for standard door profiles.
- Waterproof Performance: IP66 rating ensures stable performance across varying weather conditions.
- Unlock System: Supports fingerprint, IC card, password and mechanical key access through a unified control logic.
- Battery Powered: 4 AA batteries deliver consistent runtime, with clear power status indicators.
The LJ02-B is engineered as a hassle-free semi-automatic smart lock for narrow profile doors. It adopts a robust aluminum alloy frame and stainless steel lock body to ensure long-term durability in both indoor and outdoor setups. Focusing on straightforward usability, it supports mainstream unlocking methods through a simplified control logic, reducing installation complexity and daily maintenance needs.
Equipped with essential security protections and optional remote features, it delivers reliable, consistent access for modern homes and commercial spaces.
Start with the installation.
Share the door or room layout, target market, quantities and integration requirements. We can help define the model configuration.



