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Request a QuoteDDL4 3D Face & Palm Vein Smart Lock with Video Intercom
Premium fully automatic smart lock with 3D facial recognition, palm vein authentication, a 4.5-inch IPS display, active monitoring, video intercom, and Tuya smart access. 3D Face Recognition · Palm Vein · 4.5" IPS Display · Video Intercom · Tuya Remote Access
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Product Overview
The CaremLock DDL4 is a premium fully automatic smart lock designed for modern residential and project applications. It combines 3D facial recognition and palm vein authentication with fingerprint, password, IC card and smart remote access in one integrated access-control solution. A 2MP imaging system and 4.5-inch IPS display support active monitoring and video intercom, while the aluminum-alloy body and tempered-glass panel provide a premium, durable exterior. A 4200mAh rechargeable lithium battery with Type-C fast charging supports convenient everyday operation. Tuya connectivity enables mobile remote access, while temporary and virtual password options provide additional flexibility for visitors and managed access.
Advanced Smart Access Technology
Premium Construction & Long-Life Battery
Aluminum-alloy construction combined with a tempered-glass front panel and matte/obsidian-black finish. Built-in 4200mAh rechargeable lithium battery with Type-C fast charging and 5V Type-C emergency power support.
Advanced Security & Loitering Alert
Equipped with a 2MP ultra-HD camera and Fushi face recognition. Supports loitering-alert functionality and Tuya mobile remote access for additional entrance monitoring and management.
Product Parameters
Parameter
Model
System
Camera
Display
Material
Color
Battery
Charging
Emergency Power
User Capacity
Administrators
Regular Users
Palm Vein Capacity
Face Capacity
Fingerprint Recognition Time
Static Current
Dynamic Current
Working Temperature
App / Networking
Languages
Specification
DDL4
Tongxin top-configuration solution + Fushi facial recognition
2MP
4.5-inch IPS
Aluminum alloy + tempered glass panel
Matte / Obsidian Black
4200mAh rechargeable lithium battery
Type-C fast charging
5V Type-C
300 total
3
297
50
50
≤0.5 sec
≤120μA
≤4A
-25°C to 70°C
Tuya
Chinese / English; Tuya version supports nine languages
Multiple Unlocking Methods
Palm Vein Recognition
Contactless palm vein recognition supports up to 50 users for secure hands-free unlocking.
3D Face Recognition
Fushi face recognition with a 2MP ultra-HD camera enables fast and accurate face unlock.
Fingerprint Access
High-speed fingerprint recognition with recognition time ≤0.5 sec for convenient daily access.
Password & Virtual Password
Supports password entry and virtual password protection for flexible access management.
IC Card & Wristband
Supports IC cards and compatible wristbands for family, staff and project-managed access.
Mobile Remote & Temporary Password
Remote unlocking, mini-program temporary password and virtual password support through the Tuya smart application.
Smart Features & Remote Management
3D Face & Palm Vein Authentication
Dual contactless biometric options support flexible and convenient access for daily use.
Active Monitoring & Video Intercom
Integrated 2MP imaging and 4.5-inch IPS display support visual entrance interaction.
Tuya Remote Access
Tuya connectivity supports mobile remote door-opening functionality and smart access management.
Temporary & Virtual Passwords
Supports mini-program temporary passwords and virtual passwords for flexible visitor and managed access.
Applications
Apartments & Residences
Premium keyless access for modern residential entrances and apartment buildings.
Villas & Luxury Homes
Multi-biometric access and visual entrance interaction for high-end villas and luxury residences.
Property Developments
Suitable for developers requiring a modern fully automatic smart-lock solution for residential projects.
Smart Buildings
Suitable for distributors, integrators and smart-lock brands requiring customized project solutions.
OEM & ODM Smart Lock Solutions
CaremLock provides customized DDL4 smart lock solutions for global distributors and project clients.
✅ Custom Design
Customized appearance, functions and product solutions to meet your brand requirements.
✅ Flexible Configuration
Multiple modules, materials and finishes available for different project needs.
✅ Reliable Manufacturing
Advanced production lines and strict quality control ensure stable supply.
✅ Global Support
Professional pre-sales and after-sales support for distributors and project clients.
Ready to Start Your Smart Lock Project?
Contact CaremLock for OEM, ODM and customized smart lock solutions. Our team is ready to support your smart lock project from design to delivery.
Request a Quote3D Facial Recognition
Contactless biometric access using the integrated facial-recognition module for convenient daily unlocking.
Palm Vein Recognition
Additional contactless biometric authentication with capacity for up to 50 palm-vein users.
Active Monitoring & Video Intercom
Integrated 2MP imaging and 4.5-inch IPS display support visual monitoring and video-intercom functionality.
Multiple Access Methods
Supports palm vein, face, fingerprint, password, IC card, wristband, mechanical key, temporary password, virtual password and mobile remote unlocking.