LEONDARX / Narrow Frame Smart Lock
LJ02-D Automatic Narrow Frame Smart Lock
The LJ02-D is a specialized automatic smart lock engineered for narrow frame door systems.
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.
- Frame Adaptability: Designed for 40mm plus profile doors and 38mm to 120mm door thickness
- Weather Protection: IP66 waterproof certification for stable outdoor operation

Define everyday access.
Select from this model’s documented access functions, then confirm credential management and the required version.
- Premium Construction: Aluminum alloy frame with stainless steel lock body for durability
- Advanced Security: C grade cylinder core with anti prying and wrong attempt protection

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-D 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-D 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.
- Frame Adaptability: Designed for 40mm plus profile doors and 38mm to 120mm door thickness
- Weather Protection: IP66 waterproof certification for stable outdoor operation
- Premium Construction: Aluminum alloy frame with stainless steel lock body for durability
- Advanced Security: C grade cylinder core with anti prying and wrong attempt protection
- Multi Mode Access: Fingerprint, IC card, password, mechanical key and WeChat Mini Program
- Smart Expansion: Optional remote unlock, mobile APP, WiFi and Bluetooth connectivity
- Emergency Power: 5V power bank support to prevent lock out situations
- Long Term Reliability: Operating range of -25°C to 70°C for extreme conditions
The LJ02-D is a purpose built automatic narrow frame smart lock focusing on reliability and user convenience. It is constructed with high grade aluminum alloy and stainless steel to ensure structural integrity and resistance to the elements. Equipped with a conductor fingerprint sensor, it offers fast and secure biometric access alongside multiple traditional unlocking options. The system includes essential security features such as low voltage alerts and anti tampering alarms.
With optional smart connectivity features, providing a versatile access solution for modern homes and commercial premises.
Start with the installation.
Share the door or room layout, target market, quantities and integration requirements. We can help define the model configuration.



