DDA3 One-Grip Smart Lock
CaremLock DDA3 is a semi-automatic one-grip smart lock with 4×AA battery, 7 access methods and Tongxin solution. Aluminum alloy body in Matte Black with optional remote control and Tuya modules.
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Product Overview
The DDA3 one-grip smart lock combines the Tongxin solution with a durable aluminum alloy body, 4×AA battery and 7 access methods for residential, hospitality and project deployments. Optional modules add wireless remote control and Tuya smart home integration.
Advanced Smart Access Technology
Fingerprint Recognition
Semiconductor fingerprint sensor for fast and reliable daily access.
Password & Virtual Password
Numeric keypad with anti-peep virtual password to prevent shoulder surfing.
IC Card & Mechanical Key
Contactless IC card and mechanical key for family, staff and emergency access.
Wristband & Mini-Program
Wristband access plus WeChat mini-program temporary password for visitors and short-term guests.
Premium Hardware Design
Aluminum alloy construction with semi-automatic one-grip lever handle, indoor anti-lock knob, Type-C emergency power port and 4×AA battery compartment for straightforward installation and maintenance.
Intelligent Security Configuration
Tongxin solution, 9-language voice prompts, 3 admin / 297 regular user capacity, 7 unlocking methods and optional remote control and Tuya modules for flexible project deployment.
Product Parameters
Parameter
Model
Product Type
System
Material
Color
Battery
Emergency Power
Languages
Administrators
Regular Users
Quiescent Current
Dynamic Current
Working Temperature
Unlocking Methods
Optional Modules
Specification
DDA3
One-Grip Smart Lock
Tongxin solution
Aluminum alloy
Matte Black
4 × AA dry batteries
Type-C interface
9 languages standard
3
297
≤45μA
≤150mA
-25°C to 70°C
Fingerprint / Password / IC Card / Wristband / Mechanical Key / Mini-Program Password / Virtual Password
Remote Control Module / Tuya Module (optional)
Multiple Unlocking Methods
Fingerprint
Fast semiconductor fingerprint recognition for daily access.
Password
Secure numeric password access for residents and staff.
Virtual Password
Disguise passwords with extra digits before and after the real code to prevent observation.
IC Card
Convenient contactless IC card access for family, staff and project users.
Wristband
Wearable wristband option for active residents and access control projects.
Mechanical Key
Mechanical key for emergency backup and override.
Smart Access & Optional Modules
Mini-Program Temporary Password
Generate time-limited temporary passwords remotely through the WeChat mini-program for visitors, service staff and short-term guests.
Virtual Password
Anti-peep virtual password allows extra digits before and after the real code, preventing observation-based theft.
Optional Remote Control Module
Add a wireless remote control module to enable remote door opening from a short distance for commercial and access-controlled applications.
Optional Tuya Module
Add the Tuya module for mobile remote unlocking and time-limited temporary passwords through the Tuya smart home ecosystem.
Applications
Residential Apartments
Reliable one-grip smart lock for residential apartments and multi-family buildings.
Serviced Apartments & Rentals
Mini-program temporary password and remote management support serviced apartments and short-term rentals.
Hotels & Hospitality
Multi-user capacity and 7 access methods suitable for hotel guest rooms and hospitality projects.
Light Commercial Spaces
Reliable access control for offices, studios and other light commercial spaces.
OEM & ODM Smart Lock Solutions
CaremLock provides customized DDA3 smart lock solutions for global distributors, integrators and project partners. We support product design, logo customization and flexible configuration to meet your market requirements.
✅ 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.
Application Scenarios
Request DDA3 pricing or samples
Share your project requirements and our team will reply with configuration options.
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Contact CaremLock for DDA3 one-grip smart lock samples, OEM and ODM inquiries. Our team will provide a suitable configuration based on your project requirements.
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