1. Product Overview
The Alarm.com Slim Line II Wi-Fi Doorbell Camera (Model ADC-VDB106X) is designed to provide enhanced front door awareness and security. This device integrates a camera, PIR motion sensor, and digital microphone and speaker, enabling two-way audio communication, live and recorded video, and real-time notifications directly to your connected application.
It is a direct replacement for the ADC-VDB106 model and is specifically designed to work with Alarm.com security systems, requiring an active Alarm.com subscription for full functionality.

Figure 1: Front view of the Alarm.com Slim Line II Video Doorbell Camera in Bronze.
2. Package Contents
Before beginning installation, please verify that all components are present in your package:
- Alarm.com Slim Line II Video Doorbell Camera (ADC-VDB106X)
- Quick Connect Fixtures
- Mounting Hardware (screws, anchors)
- Installation Guide
3. Installation Guide
This doorbell camera is designed for outdoor use and typically replaces an existing wired doorbell. Professional installation is recommended, but experienced users may perform self-installation.
3.1. Pre-Installation Checklist
- Ensure power to your existing doorbell chime is turned off at the circuit breaker.
- Confirm you have a compatible Alarm.com security system and an active subscription.
- Verify Wi-Fi signal strength at the installation location.
3.2. Replacing an Existing Doorbell
- Turn off Power: Locate your doorbell's circuit breaker and turn off the power to prevent electrical shock.
- Remove Old Doorbell: Carefully remove your existing doorbell unit. Disconnect the wires, noting their connections if necessary.
- Mount New Doorbell: Use the provided mounting hardware to secure the Slim Line II doorbell camera to the wall. Ensure the existing doorbell wires can be connected to the quick connect fixtures on the new unit.
- Connect Wires: Connect the doorbell wires to the appropriate terminals on the back of the Slim Line II. This model is designed for straightforward replacement, often requiring no electrical rewiring.
- Secure Doorbell: Once wires are connected, carefully push the doorbell into place and secure it using the set screw, typically located at the bottom of the unit.
- Restore Power: Turn the power back on at the circuit breaker.

Figure 2: Detailed front view of the doorbell camera, showing the camera lens and doorbell button.
4. Operating Instructions
The Alarm.com Slim Line II Doorbell Camera operates primarily through the Alarm.com mobile application.
4.1. Initial Setup and Pairing
- Download App: Download the Alarm.com mobile application from your device's app store.
- Log In: Log in with your Alarm.com account credentials.
- Add Device: Follow the in-app instructions to add a new video device. This typically involves scanning a QR code on the device or entering a serial number.
- Connect to Wi-Fi: The app will guide you through connecting the doorbell camera to your home Wi-Fi network.
- System Integration: Your Alarm.com security system provider may need to assist with the final integration of the doorbell into your system for full functionality and automation rules.
4.2. Key Features and Usage
- Two-Way Audio: Speak to visitors at your door directly through the Alarm.com app.
- Live Video: Access a live feed from your doorbell camera at any time via the app.
- Recorded Video: The camera records clips triggered by doorbell presses or motion detection. These clips are stored in your Alarm.com account.
- Notifications: Receive real-time alerts on your mobile device when motion is detected or the doorbell is pressed.
- Motion-Triggered Automation: Set up custom rules within the Alarm.com app to trigger actions (e.g., turn on lights) when motion is detected by the doorbell camera.
5. Maintenance
Regular maintenance ensures optimal performance and longevity of your doorbell camera.
- Cleaning: Periodically wipe the camera lens and the surrounding area with a soft, damp cloth to remove dust, dirt, or smudges. Avoid abrasive cleaners.
- Connection Check: Ensure the doorbell is securely mounted and all electrical connections remain firm.
- Software Updates: Keep your Alarm.com app updated to the latest version to ensure compatibility and access to new features. Firmware updates for the doorbell camera are typically managed automatically through the Alarm.com system.
6. Troubleshooting
If you encounter issues with your Alarm.com Slim Line II Video Doorbell Camera, refer to the following common solutions:
| Problem | Possible Cause / Solution |
|---|---|
| Doorbell not powering on. | Check the circuit breaker for your doorbell. Ensure wires are correctly connected and secure. Verify adequate power supply from your existing doorbell wiring. |
| Camera frequently disconnects or requires reboots. | Weak Wi-Fi signal at the installation location. Consider moving your Wi-Fi router closer or using a Wi-Fi extender. Ensure your router firmware is up to date. Check for network interference. |
| Cannot integrate with Alarm.com system. | Ensure you have an active Alarm.com subscription. Contact your Alarm.com service provider; they often need to provision the device on their end for proper integration. |
| No video or poor video quality. | Check Wi-Fi connection strength. Clean the camera lens. Ensure there are no obstructions in front of the camera. |
| Two-way audio not working. | Check microphone and speaker settings in the Alarm.com app. Ensure your phone's volume is up. Verify network connectivity. |
If issues persist, contact your Alarm.com service provider or the manufacturer's support.

Figure 3: Important notice regarding the required monthly Alarm.com subscription for full functionality.
7. Specifications
| Feature | Detail |
|---|---|
| Model Name | Slim Line II Doorbell Camera |
| Model Number | ADC-VDB106X |
| Brand | Generic (Skybell Manufacturer) |
| Color | Bronze |
| Indoor/Outdoor Usage | Outdoor |
| Connectivity Protocol | Wi-Fi |
| Mounting Type | Door Mount |
| Included Components | Quick Connect Fixtures |
| Wireless Communication Technology | Wi-Fi |
| Installation Type | Self Adhesive (Note: Wired connection required for power) |
| Item Dimensions (L x W x H) | 1.4 x 1.1 x 4.8 inches |
| Alert Type | Motion Only (and doorbell press) |
| Video Capture Format | MPEG-4 |
| Control Method | App |
| UPC | 856478006231 |
| Manufacturer | Skybell |
| Item Weight | 7.6 ounces |
| Special Features | Outdoor Security |
| Batteries Included? | No |
8. Warranty and Support
For warranty information, please refer to the documentation provided by your Alarm.com service provider or contact Skybell, the manufacturer, directly. Support for the Alarm.com Slim Line II Video Doorbell Camera is primarily provided through your Alarm.com service provider, as the device requires integration with their system.
For technical assistance, troubleshooting beyond this manual, or service inquiries, please contact your authorized Alarm.com dealer or installer.