Aqara Smart Lock U300 specifications:
| Product Name | Aqara Smart Lock U300 Kit |
| Model | DL-D02D |
| Wireless Protocols | Thread, Bluetooth, NFC |
| Power Input | 4 * AA Batteries |
| Dimensions | Outer Panel: 140 x 76 x 73.5 mm (5.5 x 2.99 x 2.89 in.) |
| Inner Panel: 159 x 74.5 x 76 mm (6.25 x 2.93 x 2.99 in.) | |
| Operating Temperature | Outer Panel: -30°C ~ 55°C (-22°F ~ +131°F) |
| Inner Panel: -10°C ~ 55°C (-14°F ~ +131°F) | |
| Operating Humidity | 0 ~ 93% RH, no condensation |
| What is in the Box | – Smart Lock U300 × 1 |
| – User Manual × 1 | |
| – Installation Diagram × 1 | |
| – Mechanical Key × 2 | |
| – Accessories Kit × 1 |
A Smarter Way to Secure Your Home
The Aqara Smart Lock U300 is a user-friendly digital lock designed for simplicity and convenience. It offers multiple ways to unlock, including fingerprint, NFC, passcode, and Apple Home Keys*. This single-latch lever lock is easy to install—if your current lock is a similar one-hole design with just a latch, installation could be as simple as swapping out a few screws.
With Matter-over-Thread compatibility, the Aqara U300 works seamlessly with popular platforms that support the Matter standard**, like Apple HomeKit, Google Home, and Amazon Alexa. You can also manage it directly through the Aqara Home app***.
Built for durability, the U300 runs on 4 AA batteries and offers a battery life of up to 10 months. Its IPX4 waterproof rating makes it suitable for both indoor and outdoor use.
*Apple Home Key setup requires a 2-in-1 Apple Home Hub that acts as a Matter Controller and Thread Border Router, like the HomePod Mini.
**Additional hardware may be needed, such as the platform’s Matter Controller.
***For full remote access, an Aqara Hub M3 may be required, though basic features do not need a hub.
Apple Home Keys & Various Unlocking Methods
The U300 provides multiple convenient unlocking options, including Apple Home Keys (requires an Apple 2-in-1 Matter controller & Border Router), fingerprint, passcode, NFC, and more. You can control the lock through the app using Bluetooth or Matter for remote access. It also supports temporary passwords, such as one-time and periodic passwords, making it easy to share access. For emergencies, the lock comes with two mechanical keys.
Advanced Software Control
The U300 improves home access with Quiet Unlock Mode, automatic alerts, and hands-free unlocking, offering enhanced security and peace of mind. Features like the Activity Log, automatic locking, and Anti-Peep Pin Code Protection further ensure safety. It provides flexibility with Passage Mode, temporary passwords (including offline One-Time Passwords), and periodic passwords through the Aqara Home App, plus a Do Not Disturb Mode for added convenience.
Native Matter Support over Thread
The U300’s Matter-over-Thread support allows for seamless integration with leading smart home systems like Apple Home and Google Home, offering greater user convenience with longer battery life and efficient remote control. The recommended hub for this smart lock is the M3 Hub, which also supports Matter-over-Thread.
Battery Life and Suitability
The U300 features advanced engineering with IPX4 waterproofing and operates in temperatures as low as -30°C. Powered by 4 AA batteries, it offers an estimated 10-month battery life, ensuring long-lasting, reliable performance in various environmental conditions.
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