LEONDARX / Narrow Frame Smart Lock
LJ15 Automatic Narrow Frame Smart Lock
The LJ15 is a fully automatic narrow frame smart lock crafted for modern access control needs.
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 Compatibility: Precision-engineered for 40mm+ profiles, fits 38mm-120mm door thickness
- IP66 Waterproof Rating: Superior dust and water resistance for all-weather outdoor use
Define everyday access.
Select from this model’s documented access functions, then confirm credential management and the required version.
- Multi-Biometric Access: Face, palm vein and semiconductor fingerprint recognition
- Premium Build: Aluminum alloy body with spraying process, stainless steel lock body
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 ↗LJ15 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 LJ15 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 Compatibility: Precision-engineered for 40mm+ profiles, fits 38mm-120mm door thickness
- IP66 Waterproof Rating: Superior dust and water resistance for all-weather outdoor use
- Multi-Biometric Access: Face, palm vein and semiconductor fingerprint recognition
- Premium Build: Aluminum alloy body with spraying process, stainless steel lock body
- Reliable Power System: 4 AA batteries with 5V power bank emergency charging
- Wide Temperature Range: Stable operation from -25°C to +70°C
- Comprehensive Security: C-grade cylinder, anti-prying, wrong attempt and low voltage alarms
- Global Language Support: 13 languages for worldwide deployment
- Dummy Password Function: Enhanced privacy and security for daily use
The LJ15 is a cutting-edge fully automatic narrow frame smart lock designed to elevate modern access control. It combines a durable aluminum alloy construction with an IP66 waterproof rating, ensuring long-term reliability in both indoor and outdoor environments. Equipped with advanced biometric technologies including face recognition, palm vein scanning and semiconductor fingerprint sensor, it delivers fast, secure and convenient access.
The lock supports multiple traditional unlocking methods, optional smart connectivity features and 13 global languages, making it an ideal solution for modern households and commercial spaces seeking high-performance security and smart convenience.
Start with the installation.
Share the door or room layout, target market, quantities and integration requirements. We can help define the model configuration.