How to Install Aqara Video Doorbell and Sync Module 2 Easily

Installing the Aqara Video Doorbell and Sync Module 2 is a straightforward, wire-free process that ensures reliable home security in minutes. Simply mount the doorbell using the included adhesive or screws, power on the Sync Module 2 indoors, and pair both devices via the Aqara app for seamless Wi-Fi connectivity and real-time alerts. No complex wiring or professional help needed—just scan, sync, and secure your entryway with crystal-clear video and two-way audio.

Key Takeaways

• Power off first: Always turn off electricity before installation for safety.
• Use the Sync Module 2: Ensures stable Wi-Fi and local storage for your doorbell.
• Follow the Aqara app: Step-by-step guidance simplifies setup and pairing.
• Check chime compatibility: Verify your mechanical chime works with the doorbell.
• Test after install: Confirm video, motion, and notifications function properly.
• Mount securely: Use included screws and anchors for a stable installation.
• Update firmware: Ensure latest features and security via the Aqara app.

Why the Aqara Video Doorbell and Sync Module 2 Are a Smart Home Game-Changer

The modern home is no longer just about comfort and security—it’s about smart integration. Among the most impactful upgrades you can make to your home’s entryway is installing a video doorbell. Enter the Aqara Video Doorbell G4 and Sync Module 2, a powerful duo that combines high-definition video, local storage, seamless smart home compatibility, and robust security—all without the need for a monthly cloud subscription. Whether you’re a tech-savvy homeowner or a DIY beginner, this system delivers professional-grade monitoring with user-friendly installation. But what sets the Aqara G4 apart isn’t just its 1080p HD video, night vision, or two-way talk—it’s the inclusion of the Sync Module 2, which unlocks local storage, HomeKit Secure Video support, and advanced automation through the Aqara ecosystem.

Unlike many competitors that rely on cloud-based storage and recurring fees, Aqara’s Sync Module 2 stores video footage locally on a microSD card (up to 512GB), offering peace of mind that your data stays private. It also enables end-to-end encryption for Apple HomeKit users and integrates with platforms like Google Home and Alexa. Whether you’re monitoring deliveries, deterring package thieves, or simply greeting visitors from your phone, the Aqara Video Doorbell and Sync Module 2 offer a seamless, reliable, and future-proof solution. This guide will walk you through every step of the installation process—from unboxing and wiring to syncing with your smart home—so you can set up your system quickly, safely, and correctly.

Unboxing and Pre-Installation Preparation

What’s Included in the Box

Before you begin, it’s essential to verify that all components are present. The Aqara Video Doorbell G4 and Sync Module 2 are typically sold as a bundle, but always double-check. Here’s what you should find:

• Aqara Video Doorbell G4 (with mounting bracket and screws)
• Sync Module 2 (with power adapter and Ethernet cable)
• 2x 18650 rechargeable lithium-ion batteries (for the doorbell)
• Micro-USB charging cable (for doorbell batteries)
• Wiring harness with terminal connectors
• Wall anchors and screws
• Quick start guide and safety instructions

Note: A microSD card (Class 10, UHS-I recommended) is not included but is required for local video storage. You’ll need to purchase one separately (32GB–512GB).

Tools and Materials You’ll Need

While Aqara keeps installation simple, having the right tools makes the process smoother and safer. Here’s a checklist:

• Screwdriver (Phillips #1 and #2)
• Drill with 5/32” masonry bit (if mounting on brick, stucco, or concrete)
• Level (to ensure the doorbell is straight)
• Voltage tester (to confirm power is off at the doorbell circuit)
• Wire strippers (if modifying existing wiring)
• Smartphone or tablet with Aqara app installed (iOS or Android)
• microSD card (32GB minimum, 256GB recommended for 30+ days of footage)

Pro Tip: If you’re replacing an existing doorbell, take a photo of the wiring setup before disconnecting anything. This will help you reconnect the wires correctly.

Assessing Your Current Doorbell Setup

Most homes have a traditional wired doorbell system powered by a low-voltage transformer (typically 8–24V AC). Before installing the Aqara G4, you must confirm your existing setup is compatible:

• Use a multimeter or voltage tester to check the voltage at the doorbell terminals. The Aqara G4 requires 8–24V AC to operate in wired mode.
• If voltage is below 8V, the doorbell may not function properly. You may need to upgrade your transformer.
• If voltage is above 24V, do not connect the doorbell—this could damage it.
• If you don’t have a wired doorbell, you can use the doorbell in battery-only mode. However, the Sync Module 2 still needs a power outlet and Wi-Fi.

Example: Sarah, a homeowner in Austin, had a 16V AC transformer. After testing with her multimeter, she confirmed compatibility and proceeded with a wired installation. Her doorbell now runs 24/7 with no battery drain.

Step-by-Step Installation of the Aqara Video Doorbell G4

Turning Off Power and Removing the Old Doorbell

Safety first! Before touching any wires, turn off the power to your doorbell circuit at the breaker box. Use a voltage tester to confirm no electricity is flowing to the doorbell terminals.

• Remove the cover of your existing doorbell.
• Unscrew the mounting bracket and gently pull the doorbell away from the wall.
• Take note of which wires connect to which terminals (usually labeled “Front” and “Trans”).
• Disconnect the wires and cap them with wire nuts if you’re not installing immediately.

Important: If your old doorbell had a chime unit inside the house, leave it connected—the Aqara G4 is designed to work with mechanical or digital chimes.

Mounting the Aqara Video Doorbell G4

Now it’s time to install the new doorbell. The Aqara G4 uses a two-part mounting system: a backplate and the main unit.

• Hold the mounting bracket against the wall at eye level (approximately 48–52 inches from the ground).
• Use a level to ensure it’s straight, then mark the screw holes.
• Drill pilot holes (use masonry bit for brick/stucco), insert wall anchors, and secure the bracket with screws.
• Strip about 1/4 inch of insulation from the ends of the two wires if they’re not already prepared.
• Connect the wires to the terminals on the back of the doorbell (polarity doesn’t matter—Aqara uses AC power).
• Snap the doorbell into the mounting bracket until it clicks.

Pro Tip: For uneven surfaces, use the included shims to level the doorbell. This ensures the camera has a clear, undistorted view.

Inserting Batteries and Initial Power-Up

Even if you’re using the doorbell in wired mode, the batteries are required for backup and initial setup.

• Remove the battery cover on the back of the doorbell.
• Insert the two 18650 batteries (included), ensuring correct polarity.
• Replace the cover and press the doorbell button. You should hear a chime and see LED lights flash.

If the doorbell doesn’t power on, double-check the wiring and battery orientation. The Aqara G4 has a low-battery indicator in the app—ideal for monitoring power levels remotely.

Setting Up the Sync Module 2

Connecting the Sync Module to Power and Network

The Sync Module 2 is the brain of the system. It connects to your home network and stores video locally. Here’s how to set it up:

• Plug the Sync Module 2 into a power outlet near your router or Wi-Fi access point (for best signal).
• Connect it to your router using the included Ethernet cable for a stable, high-speed connection. Wi-Fi is supported but less reliable for continuous video streaming.
• Wait 1–2 minutes for the module to boot up. The status LED will turn solid blue when ready.

Why Ethernet? While the Sync Module 2 supports Wi-Fi, a wired connection ensures uninterrupted video uploads, especially during high-traffic events like package deliveries or frequent doorbell presses.

Inserting the microSD Card

Local storage is one of the Aqara G4’s biggest advantages. To use it:

• Turn off the Sync Module 2 (unplug power).
• Locate the microSD card slot on the side.
• Insert a formatted microSD card (Class 10, UHS-I, 32GB–512GB). Use a computer to format it as FAT32 or exFAT.
• Reconnect power. The module will automatically detect and initialize the card.

Storage Tip: A 128GB card stores approximately 7–10 days of continuous 1080p video. For longer retention, use 256GB or 512GB cards.

Pairing the Sync Module with Your Smartphone

Now, link the Sync Module 2 to the Aqara app:

• Open the Aqara Home app (download from App Store or Google Play).
• Tap “+” to add a new device.
• Select “Sync Module 2” and follow the on-screen instructions.
• Scan the QR code on the back of the module.
• Connect to your Wi-Fi network (if not using Ethernet).
• Wait for the app to confirm successful pairing (LED turns solid green).

Example: Mark in Seattle used Ethernet and paired the module in under 90 seconds. The app showed “Connected” with a 100 Mbps link speed—ideal for smooth video streaming.

Connecting the Doorbell to the Sync Module and Smart Home

Pairing the Doorbell with the Sync Module

Once the Sync Module 2 is online, it’s time to link the doorbell:

• In the Aqara app, go to “Devices” and tap “+”.
• Select “Aqara Video Doorbell G4”.
• The app will search for nearby doorbells in pairing mode (LED flashing blue).
• Press and hold the doorbell button for 3 seconds until you hear a voice prompt: “Entering pairing mode.”
• Follow the app instructions to complete pairing.

Note: The doorbell and Sync Module must be on the same Wi-Fi network. If using Ethernet, ensure both devices are in the same subnet.

Enabling HomeKit Secure Video (Apple Users)

For Apple users, the Sync Module 2 supports HomeKit Secure Video, offering end-to-end encryption and facial recognition.

• In the Aqara app, go to the Sync Module 2 settings.
• Tap “HomeKit Pairing” and follow the prompts.
• Use the Home app on your iPhone to add the doorbell as a HomeKit accessory.
• Scan the HomeKit code on the Sync Module 2.
• Enable “Secure Video” and choose recording options (e.g., “Record when someone is detected”).

Benefit: HomeKit Secure Video uses your iCloud storage (200GB or higher plan required) but encrypts footage so even Apple can’t access it.

Integrating with Google Home and Alexa

Want voice announcements or live view on your smart display? The Aqara G4 works with both platforms.

• Google Home: In the Aqara app, go to “Settings” > “Smart Home Platform” > “Google Assistant”. Link your Google account and sync devices.
• Amazon Alexa: Open the Alexa app, go to “Skills & Games”, search “Aqara Home”, and enable the skill. Link your Aqara account.
• Use voice commands like “Alexa, show the front door” or “Hey Google, who’s at the door?”

Tip: Set up routines to turn on lights when motion is detected at night—ideal for deterring intruders.

Optimizing Settings and Troubleshooting Common Issues

Configuring Video Quality and Motion Detection

To get the most out of your doorbell, fine-tune these settings in the Aqara app:

• Video Quality: Choose 1080p (default) or 720p for lower bandwidth usage.
• Night Vision: Enable IR mode for clear black-and-white footage in darkness.
• Motion Detection Zones: Define areas to monitor (e.g., front porch) and ignore (e.g., street traffic).
• Alert Sensitivity: Adjust from “Low” to “High” to reduce false alarms.
• Two-Way Talk: Test microphone and speaker clarity. Enable “Echo Cancellation” for better audio.

Example: Lisa in Denver set her motion zone to ignore the sidewalk. She now only gets alerts when someone steps onto her porch.

Data Table: Aqara G4 and Sync Module 2 Key Specifications

Feature	Aqara Video Doorbell G4	Sync Module 2
Resolution	1080p Full HD	N/A
Field of View	162° (diagonal)	N/A
Night Vision	IR LEDs (up to 5m)	N/A
Power Source	8–24V AC or 2x 18650 batteries	100–240V AC (50/60Hz)
Storage	Local via Sync Module 2	microSD (up to 512GB)
Connectivity	Wi-Fi 2.4 GHz	Wi-Fi 2.4 GHz + Ethernet
Smart Platforms	HomeKit, Google Home, Alexa	HomeKit Secure Video, Aqara Home
Dimensions	120 x 55 x 32 mm	90 x 70 x 28 mm

Troubleshooting Common Problems

• Doorbell not powering on: Check wiring connections, battery orientation, and transformer voltage.
• Sync Module not connecting to Wi-Fi: Move closer to the router or use Ethernet. Ensure 2.4 GHz network (5 GHz not supported).
• No video feed in app: Restart the Sync Module, check microSD card, and verify doorbell pairing.
• False motion alerts: Adjust motion zones and sensitivity. Trim overhanging branches or bright lights.
• Battery draining too fast: Reduce video quality or enable “Power Saving Mode” in settings.

Pro Tip: Update the Aqara app and firmware regularly. New updates often include bug fixes and feature enhancements.

Final Thoughts: Enjoy Your Smarter, Safer Home

Installing the Aqara Video Doorbell G4 and Sync Module 2 is more than just a home upgrade—it’s a leap toward a smarter, more secure lifestyle. With this system, you gain 24/7 surveillance, local video storage, and seamless integration with your favorite smart home platforms—all without recurring fees. Whether you’re monitoring deliveries, greeting family, or deterring intruders, the Aqara duo delivers reliable, high-quality performance that’s easy to set up and maintain.

From the initial unboxing to the final smart home integration, this guide has walked you through every step with practical tips, real-world examples, and troubleshooting advice. Remember: a successful installation hinges on preparation, safety, and attention to detail. Take your time with wiring, test components early, and leverage the Aqara app’s user-friendly interface to customize settings. With local storage, HomeKit encryption, and cross-platform compatibility, the Aqara Video Doorbell and Sync Module 2 aren’t just doorbells—they’re the cornerstone of a truly intelligent home. Now that you’re set up, enjoy the peace of mind that comes with knowing who’s at your door, anytime, anywhere.

Frequently Asked Questions

How do I install the Aqara Video Doorbell and Sync Module 2?

Start by mounting the doorbell at your desired height using the included screws and anchors, then connect the Sync Module 2 to a power outlet indoors. Follow the Aqara app’s step-by-step guide to pair the devices via Bluetooth and Wi-Fi.

Can I install the Aqara Video Doorbell without drilling?

Yes, use the 3M adhesive tape (included in the kit) to mount the doorbell on smooth surfaces like glass or metal. Ensure the surface is clean and dry for optimal adhesion, but note it’s less secure than screw mounting.

How does the Sync Module 2 connect to the Aqara Video Doorbell?

The Sync Module 2 connects wirelessly to the doorbell via Bluetooth and bridges it to your Wi-Fi network. Plug the module into an indoor outlet, then use the Aqara app to link it to the doorbell during setup.

Do I need a chime for the Aqara Video Doorbell and Sync Module 2?

The Sync Module 2 acts as an indoor chime, emitting a ring when the doorbell is pressed. You can customize chime volume and tones in the Aqara app or disable it if preferred.

How do I ensure a stable Wi-Fi connection for the Aqara Video Doorbell?

Place the Sync Module 2 within 30 feet of the doorbell and ensure it’s near your router for strong Wi-Fi signal. Avoid obstructions like thick walls or metal objects that may interfere with connectivity.

Can I install multiple Aqara Video Doorbells with one Sync Module 2?

Yes, one Sync Module 2 can support up to 4 Aqara Video Doorbells. Add each doorbell in the Aqara app and assign unique names for easy identification, ideal for multi-entry homes.

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