eufy Security S330
eufy Security Video Smart Lock S330 User Manual
3-in-1 Camera + Doorbell + Fingerprint Keyless Entry Smart Wi-Fi Deadbolt
Product Overview
The eufy Security Video Smart Lock S330 offers advanced 3-in-1 triple security, integrating rapid fingerprint recognition, a 2K HD camera, and a sophisticated video doorbell into one device. It provides five convenient unlocking methods and remote management capabilities via the eufy Security app. Designed for durability and user-friendly installation, it features a high-capacity rechargeable battery and local storage options.

Figure 1: Overview of the eufy Security Video Smart Lock S330 components, including the exterior keypad/camera unit, the interior lock unit, and the included chime.
What's Included
Your eufy Security Video Smart Lock S330 package includes the following components:
- 1 x Exterior assembly (keypad, camera, doorbell)
- 1 x Interior assembly (thumbturn, battery compartment)
- 1 x Mounting plate
- 1 x Deadbolt
- 1 x Strike plate
- 1 x Strike reinforce
- 1 x 10,000 mAh rechargeable battery
- Screws for installation
- 2 x Physical keys
- 1 x User manual (this document)
- 1 x Chime
*Note: Charging cable and SD card are not included.

Figure 2: The integrated design of the S330, highlighting the fingerprint sensor, 2K camera, and doorbell button.
Setup and Installation
The eufy Security Video Smart Lock S330 is designed for user-friendly installation, typically taking about 15 minutes without the need for drilling. Ensure your door is compatible before beginning the installation process.
Compatibility Check
The S330 is compatible with most standard US and Canadian deadbolt spacings. It requires a minimum distance of 2 3/8" / 60 mm from the door edge to the center of the deadbolt hole. The door thickness should be between 1 3/8" – 2 1/8" (35 mm - 55 mm). Storm doors are generally not compatible. It is compatible with single cylinder deadbolts.

Figure 3: Key dimensions for door compatibility, including minimum distance from door edge and acceptable door thickness.
Pre-Installation Steps
- Charge the Battery: Fully charge the 10,000 mAh rechargeable battery before first use. This can take up to 6 hours. Use a 5V/2A power adapter for charging.
- Download the eufy Security App: The app will guide you through the step-by-step installation process.

Figure 4: The high-capacity 10,000 mAh rechargeable battery for the S330, emphasizing its eco-friendly design.
App-Guided Installation
The eufy Security app provides detailed instructions and visual aids for physical installation and setup. Follow the prompts within the app for a smooth process.
- Open the eufy Security app and select "Add Device".
- Choose "Video Smart Lock" and follow the on-screen instructions to scan the QR code on the lock.
- The app will guide you through installing the deadbolt, exterior keypad, and interior assembly.
- Ensure all cables are properly connected and tucked away to avoid pinching.
Video 1: A detailed review of the eufy Security Video Smart Lock E330, including unboxing and installation steps. This video provides a comprehensive look at the product's features and setup process.
Operating Instructions
Unlocking Methods
The S330 offers five convenient ways to unlock your door:
- Fingerprint Recognition: Rapid and secure unlocking. The lock uses self-learning AI for improved accuracy over time.
- eufy Security App: Remote unlocking and management from your smartphone.
- Keypad: Enter your personalized passcode on the illuminated keypad.
- Physical Keys: Traditional key access for backup.
- Voice Assistants: Control via Amazon Alexa or Google Voice Assistants.

Figure 5: Visual representation of the multiple unlocking options available for the S330 Smart Lock.
Video 2: This video demonstrates the various unlocking methods of the eufy Smart Lock E330, including fingerprint, keypad, and app control, showcasing its versatility.
Remote Management and Notifications
Stay connected to your front door from anywhere with the eufy Security app. Monitor activity, receive push notifications, and manage access for visitors or service providers.

Figure 6: The 2-way audio feature allows real-time communication with visitors through the app.
Motion Detection and AI Accuracy
The S330 features dual motion sensors to reduce false alarms and accurately detect human, pet, and vehicle movement. AI algorithms ensure 99% accuracy, alerting you only to genuinely suspicious activity.

Figure 7: The smart lock's AI accurately identifies human presence, reducing unnecessary alerts.
Local Storage
The S330 includes Chime, which offers expandable video storage of up to 128 GB with a microSD card (not included). This provides local security with no monthly fees for video storage.

Figure 8: The Chime unit provides local storage for video recordings, eliminating monthly subscription fees.
Night Vision Optimization
The smart lock minimizes doorframe reflections to ensure clear visuals and optimal protection in low-light conditions. This feature enhances visibility and peace of mind regardless of the time of day.
Auto Lock and One-Touch Locking
For added convenience and security, enable the Auto Lock feature to automatically lock the door after a set period (5 seconds to 30 minutes). One-Touch Locking allows you to lock the door by simply long-pressing the check button on the keypad.
Maintenance
- Battery Charging: Monitor battery levels via the eufy Security app. Recharge the 10,000 mAh battery as needed.
- Cleaning: Regularly wipe the exterior keypad and camera lens with a soft, damp cloth to ensure optimal performance and clear video quality. Avoid abrasive cleaners.
- Firmware Updates: Keep the device firmware updated through the eufy Security app to ensure the latest features and security enhancements.
Troubleshooting
- Fingerprint Recognition Issues: Ensure your finger is clean and dry. Try re-registering your fingerprint if issues persist.
- Lock Not Responding: Check the battery level. If the battery is low, charge it immediately.
- Connectivity Problems: Ensure your Wi-Fi network is stable. The Chime helps maintain stable Wi-Fi connectivity.
- Installation Errors: Refer to the detailed installation guide within the eufy Security app. For specific issues, contact customer support.
Video 3: This video highlights a common issue where the lock stopped working after a few months, emphasizing the importance of proper troubleshooting and potential support contact.
Specifications
| Feature | Detail |
|---|---|
| Brand | eufy Security |
| Model Name | Video Smart Lock S330 |
| Lock Type | Biometric |
| Special Features | 2K HD camera, advanced video doorbell, WiFi Deadbolt, Rechargeable battery (10,000 mAh) |
| Material | Zinc |
| Color | Black |
| Item Weight | 5.51 pounds |
| Control Method | App, Touch, Voice |
| Connectivity Protocol | Wi-Fi |
| Batteries | 1 Lithium Ion batteries required (included) |
| Included Components | Exterior assembly, Interior assembly, mounting plate, Deadbolt, strike plate, strike reinforce, 10000 mah rechargeable battery, screws, 2 keys, use manual, Chime |
Warranty and Support
The eufy Security Video Smart Lock S330 comes with a 12-month protection plan. For any inquiries or assistance, 24/7 customer support is available.
You can also refer to the official User Manual (PDF) for more detailed information: Download User Manual
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