LEONDARX / Narrow Frame Smart Lock
LJ02-A Semi-Automatic Narrow Frame Smart Lock
The LJ02-A is a semi-automatic narrow frame smart lock designed for narrow profile doors.
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.
- Narrow Frame Design: Fits 40mm+ profile doors, 38mm-120mm door thickness
- Durable Build: Aluminum alloy body, stainless steel lock body

Define everyday access.
Select from this model’s documented access functions, then confirm credential management and the required version.
- Power Supply: 4 AA batteries, 5V power bank emergency power
- Operating Temperature: -25°C~+70°C wide temperature range

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
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Request compliance documents ↗LJ02-A 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-A 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.
- Narrow Frame Design: Fits 40mm+ profile doors, 38mm-120mm door thickness
- Waterproof Rating: IP66 for all-weather use
- Durable Build: Aluminum alloy body, stainless steel lock body
- Power Supply: 4 AA batteries, 5V power bank emergency power
- Operating Temperature: -25°C~+70°C wide temperature range
- Security Features: Anti-prying, wrong attempt, low voltage alarm, dummy password
- Optional Functions: Remote unlock, mobile APP, WiFi, Bluetooth
The LJ02-A is a purpose-built semi-automatic smart lock for narrow frame doors. Engineered with a durable aluminum alloy body and stainless steel lock body, it delivers IP66 waterproof performance and reliable operation in extreme temperatures from -25°C to 70°C. It supports multiple convenient unlocking methods including fingerprint, IC card, password, mechanical key and WeChat Mini Program, with optional remote access via APP, WiFi or Bluetooth.
With large user capacity, comprehensive security alarms and emergency power support, it is an ideal access solution 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.



