Introduction:
Introducing the Aqara Smart Lock U400 Kit (Black), a next-generation smart lock designed to provide secure, convenient, and seamless keyless access for modern homes. Featuring Matter over Thread connectivity, Ultra-Wideband (UWB) hands-free unlocking, Apple Home Key support, and multiple access methods, the U400 delivers a premium smart entry experience with enhanced security and automation capabilities. With fingerprint recognition, PIN codes, NFC access, mobile control, and automatic locking, the Smart Lock U400 Kit combines advanced technology with reliable everyday convenience.
Key Features:
Matter over Thread Connectivity
The Aqara Smart Lock U400 supports Matter over Thread, providing fast, reliable, and low-power communication with modern smart home ecosystems. It works with platforms including Apple Home, Google Home, Amazon Alexa, Samsung SmartThings, and other Matter-compatible systems when paired with a compatible Matter Controller.
Ultra-Wideband (UWB) Hands-Free Unlocking
Experience next-generation access with UWB proximity unlocking, allowing compatible iPhone and Apple Watch devices to unlock the door automatically as you approach. The technology uses precise location detection to unlock only when authorized, providing a secure and effortless entry experience.
Apple Home Key Support
Add the lock to Apple Wallet and unlock your door using an iPhone or Apple Watch. Home Key allows convenient digital key sharing with family members while maintaining secure access control.
Multiple Unlock Methods
Choose the most convenient access method for every situation:
- UWB hands-free unlocking
- Fingerprint recognition
- PIN code
- NFC card
- Aqara Home app
- Voice assistants through compatible platforms
-
Mechanical key backup
Fast Fingerprint Recognition
The built-in fingerprint sensor provides quick and accurate biometric access, supporting up to 50 stored fingerprints with recognition in approximately 0.3 seconds.
Temporary & Scheduled Access Codes
Create customized access credentials for:
- Family members
- Guests
- Cleaning services
- Maintenance personnel
- Rental properties
Allowing secure access without sharing permanent keys.
Remote Lock & Unlock Control
Monitor and control your door remotely through compatible Aqara hubs or Matter ecosystems. Receive notifications, check lock status, and manage access from anywhere.
Automatic Locking with Built-In Gyroscope
The integrated gyroscope detects when the door closes and automatically locks it, eliminating the need for additional door sensors in many installations.
Advanced Security Protection
Designed for reliable home protection with:
- Anti-peep password technology
- Tamper alerts
- Encrypted communication
- Unauthorized access notifications
- Secure authentication methods
Outdoor Weather-Resistant Design
The exterior panel features an IP65 weather-resistant rating, helping protect the lock from dust and water exposure while maintaining reliable outdoor performance.
Long Battery Life with Emergency Access
Powered by a rechargeable lithium battery, the U400 provides extended operation and includes emergency charging support to maintain access even when battery power is low.
Smart Home Automation Examples:
Welcome Home Scene
Smart Lock unlocked → Disable security mode → Turn on entrance lights → Open curtains automatically.
Night Security Mode
Lock activated at night → Turn off outdoor lights → Enable security sensors → Activate alarm monitoring.
Guest Access Scene
Create temporary PIN → Guest enters → Receive notification → Disable access automatically after schedule ends.
Smart Entry Automation
Door unlocked → Activate hallway lighting → Adjust AC temperature → Start personalized home scene.
Specifications:
Model:
-
DL-D06E / DL-D16E / DL-D06D / DL-D16D / DL-D17D / DL-D15D
Connectivity:
- Matter over Thread
- Bluetooth
- NFC
-
UWB
Unlock Methods:
- UWB hands-free unlocking
- Apple Home Key
- Fingerprint recognition
- PIN code
- NFC card
- Aqara Home app
- Mechanical key
-
Voice control via compatible platforms
Smart Home Compatibility:
- Aqara Home
- Apple Home
- Google Home
- Amazon Alexa
- Samsung SmartThings
-
Matter-compatible ecosystems
Functions:
- Remote lock/unlock
- Auto lock
- Temporary passwords
- Scheduled access
- Fingerprint management
- Activity logs
- Smart automation triggers
Security Features:
- Anti-peep keypad protection
- Tamper alerts
- Encrypted communication
- Unauthorized access detection
Fingerprint Capacity:
-
Up to 50 fingerprints
Power Source:
-
Rechargeable Li-ion battery
Battery Life:
-
Up to approximately 6 months depending on usage conditions
Operating Temperature:
-
-18°C to 55°C
Operating Humidity:
-
0–95% RH (Non-condensing)
Dimensions:
- Inner Panel: 178 × 76 × 46.9 mm
-
Outer Panel: 167 × 76 × 25.5 mm
Color:
- Black