How to Link Eufy Smart Lock with Doorbell

Linking your Eufy smart lock with your Eufy doorbell creates a powerful, integrated home security system. This guide walks you through the entire process—from setup to troubleshooting—so you can see who’s at the door and unlock it remotely with ease.

Key Takeaways

Compatibility matters: Ensure both your Eufy smart lock and doorbell are part of the same ecosystem (e.g., Eufy Security app) and support HomeBase or direct Wi-Fi connectivity.
Use the Eufy Security app: This is the central hub for linking devices, managing settings, and viewing live feeds or access logs.
Enable two-way audio and auto-unlock features: These enhance convenience and security by letting you communicate with visitors and grant access remotely.
Keep firmware updated: Regular updates improve performance, fix bugs, and ensure smooth integration between devices.
Test the connection after setup: Always verify that the doorbell triggers notifications and that the lock responds to commands via the app.
Troubleshoot common issues: Problems like delayed responses or failed links are often resolved by restarting devices or re-adding them to the app.
Consider HomeBase for reliability: Using a HomeBase hub can strengthen the connection and enable local storage for video footage.

How to Link Eufy Smart Lock with Doorbell: A Complete Guide

Imagine this: You’re at work, and your phone buzzes—someone’s at your front door. With a quick tap, you see a live video feed from your Eufy doorbell. It’s a delivery person holding a package. Without leaving your desk, you unlock your front door using your Eufy smart lock so they can safely drop it inside. Sounds like magic? It’s not—it’s smart home integration done right.

In this guide, we’ll show you exactly how to link your Eufy smart lock with your Eufy doorbell to create a seamless, secure, and convenient home entry system. Whether you’re a tech newbie or a seasoned smart home enthusiast, we’ll walk you through every step—from checking compatibility to troubleshooting common issues. By the end, you’ll have a fully integrated setup that lets you see, speak to, and grant access to visitors from anywhere.

Why Link Your Eufy Smart Lock and Doorbell?

Before diving into the setup, let’s talk about why this integration is worth your time. Combining your Eufy smart lock and doorbell isn’t just about convenience—it’s about creating a smarter, safer home.

Visual guide about How to Link Eufy Smart Lock with Doorbell

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Remote access control: See who’s at the door and unlock it from your phone, even when you’re miles away.
Enhanced security: Deter package thieves and unwanted visitors by monitoring your doorstep in real time.
Peace of mind: Check on deliveries, guests, or family members without being physically present.
Automated routines: Set up custom actions, like unlocking the door when a trusted face is detected.
Two-way communication: Speak directly to visitors through the doorbell’s built-in speaker and microphone.

Whether you’re managing a busy household, running a home business, or just want to upgrade your security, linking these two devices transforms your front door into a smart gateway.

What You’ll Need Before You Start

To successfully link your Eufy smart lock with your doorbell, make sure you have the following:

Compatible Eufy smart lock: Models like the Eufy Smart Lock Touch, Smart Lock C21, or Smart Lock C22 work best.
Compatible Eufy doorbell: Choose from wired (e.g., Eufy Video Doorbell 2K) or wireless (e.g., Eufy Video Doorbell Solo) models.
Eufy Security app: Download the latest version from the App Store (iOS) or Google Play (Android).
Stable Wi-Fi connection: Both devices need a strong 2.4GHz Wi-Fi signal (5GHz is not supported by most Eufy locks).
HomeBase (optional but recommended): A HomeBase hub improves reliability and enables local video storage.
Smartphone or tablet: Used to configure and manage your devices.
Basic tools: Screwdriver, drill (if installing hardware), and a ladder for doorbell placement.

Pro tip: Check the product packaging or Eufy’s official website to confirm compatibility. Most Eufy devices released after 2020 are designed to work together seamlessly.

Step 1: Install and Set Up Your Eufy Doorbell

Before linking devices, both your doorbell and smart lock must be properly installed and connected to the Eufy Security app.

Choose the Right Location

Mount your doorbell at a height of 48–60 inches from the ground—this ensures clear facial recognition. Avoid placing it in direct sunlight or near heat sources, as this can affect video quality and battery life (for wireless models).

Install the Doorbell

For wired doorbells:

Turn off power at the breaker box.
Remove your old doorbell and connect the Eufy wires to the existing terminals.
Secure the mounting plate and attach the doorbell.
Restore power and test the chime.

For wireless doorbells:

Use the included mounting bracket and screws.
Ensure the doorbell is within range of your Wi-Fi router (ideally within 30 feet).
Charge the battery fully before installation.

Connect the Doorbell to the Eufy App

Open the Eufy Security app and tap the “+” icon.
Select “Add Device” and choose “Doorbell.”
Follow the on-screen instructions to scan the QR code on your doorbell.
Connect to your Wi-Fi network (2.4GHz only).
Wait for the app to confirm successful pairing.
Test the live view and two-way audio.

Once your doorbell is online, you’re ready to move to the next step.

Step 2: Install and Set Up Your Eufy Smart Lock

Your smart lock must also be installed and connected before linking.

Prepare Your Door

Measure your door’s backset (distance from edge to center of lock) and thickness. Most Eufy locks fit standard doors (1.375” to 2.125” thick). Remove your existing deadbolt if necessary.

Install the Smart Lock

Follow the installation guide included with your lock.
Insert the lock body into the door and secure it with screws.
Attach the interior and exterior plates.
Connect the wire harness between the two sides.
Install batteries (usually 4 AA) in the interior unit.

Pair the Lock with the Eufy App

Open the Eufy Security app.
Tap “+” and select “Smart Lock.”
Scan the QR code on the lock’s interior unit.
Follow prompts to connect to Wi-Fi (2.4GHz).
Set up access codes, fingerprints, or app-based unlocking.
Test the lock by opening and closing it via the app.

Once both devices are online and functioning, you’re ready to link them.

Step 3: Link Eufy Smart Lock with Doorbell in the App

Now comes the exciting part—connecting your doorbell and smart lock so they work together.

Open the Eufy Security App

Launch the app on your smartphone or tablet. Make sure you’re logged into the same account used to set up both devices.

Navigate to Device Settings

Tap on your doorbell from the home screen.
Go to “Device Settings” (usually a gear icon).
Look for “Smart Lock Integration” or “Linked Devices.”

Enable Smart Lock Linking

Toggle on “Enable Smart Lock Integration.”
The app will search for nearby compatible locks.
Select your Eufy smart lock from the list.
Confirm the pairing request.

Set Up Automation Rules (Optional)

You can customize how the devices interact. For example:

“When doorbell detects motion, show live feed.”
“When someone rings the doorbell, send a notification and allow unlock.”
“Unlock the door when a recognized face is detected.”

These rules enhance convenience and security. You can adjust them anytime in the app.

Test the Integration

Ring the doorbell (or simulate a motion event). Check if:

You receive a push notification.
The live video feed opens in the app.
An “Unlock” button appears on the screen.
Tapping “Unlock” successfully opens the door.

If everything works, congratulations—you’ve successfully linked your Eufy smart lock with your doorbell!

Step 4: Optimize Your Setup for Best Performance

Now that your devices are linked, let’s fine-tune the experience.

Update Firmware Regularly

Outdated firmware can cause glitches or security vulnerabilities. To update:

Open the Eufy app.
Go to “Device Settings” for each device.
Tap “Firmware Update” if available.
Follow prompts to install updates (ensure devices are charged or powered).

Adjust Motion and Notification Settings

Prevent false alerts by customizing sensitivity:

Set motion zones to ignore trees or passing cars.
Adjust detection sensitivity to “Medium” or “Low” if needed.
Enable “Smart Alerts” to filter out non-human motion.

Use HomeBase for Better Performance

If you have a HomeBase hub:

Connect both devices to HomeBase instead of Wi-Fi.
This reduces lag and enables local video storage (no cloud fees).
Improves reliability, especially in areas with weak Wi-Fi.

Create User Profiles

Share access with family members or trusted friends:

Go to “Family & Guests” in the app.
Add users and assign permissions (e.g., view only, unlock access).
Set temporary codes for housekeepers or Airbnb guests.

Troubleshooting Common Issues

Even with careful setup, you might run into problems. Here’s how to fix the most common ones.

Doorbell Doesn’t Trigger Unlock Option

Check app permissions: Ensure notifications are enabled for the Eufy app.
Verify device linking: Re-link the lock and doorbell in the app.
Update the app: Outdated versions may lack integration features.

Smart Lock Doesn’t Respond to App Commands

Check battery level: Low batteries can cause delays or failures.
Restart the lock: Remove batteries for 10 seconds, then reinsert.
Reconnect to Wi-Fi: Forget the network in the app and reconnect.

Delayed Notifications or Video Feed

Improve Wi-Fi signal: Use a Wi-Fi extender near the door.
Reduce interference: Keep devices away from microwaves or cordless phones.
Use HomeBase: Local processing reduces cloud dependency.

Two-Way Audio Not Working

Check microphone/speaker: Ensure nothing is blocking the doorbell.
Test in quiet environment: Background noise can interfere.
Update firmware: Audio bugs are often fixed in updates.

Devices Keep Disconnecting

Reset network settings: Re-add both devices to the app.
Check router settings: Disable “AP isolation” or “client isolation.”
Contact Eufy support: If issues persist, reach out for help.

Safety and Privacy Tips

While smart locks and doorbells offer convenience, they also raise privacy concerns. Follow these best practices:

Use strong passwords: Avoid default or easy-to-guess codes.
Enable two-factor authentication: Add an extra layer of security to your Eufy account.
Limit guest access: Only share unlock permissions with trusted individuals.
Review access logs: Regularly check who unlocked the door and when.
Disable features when away: Turn off remote unlock if you’re on vacation.
Keep software updated: Security patches protect against vulnerabilities.

Conclusion

Linking your Eufy smart lock with your Eufy doorbell is a game-changer for home security and convenience. With just a few steps in the Eufy Security app, you can see who’s at your door, speak to them, and unlock the door—all from your phone. Whether you’re accepting a delivery, letting in a friend, or monitoring your home while away, this integration puts control at your fingertips.

Remember to keep your devices updated, test the connection regularly, and use features like HomeBase and automation rules to get the most out of your setup. And if you run into issues, the troubleshooting tips above will help you get back on track quickly.

By following this guide, you’ve not only enhanced your home’s security—you’ve taken a big step toward a smarter, more connected lifestyle. Welcome to the future of front-door management.