1. Introduction
The IMILAB C21 is a versatile 2.5K WiFi indoor surveillance camera designed to provide comprehensive home monitoring. It features super clear images, a 360° panoramic view, sound and human detection, alarm functions, color night vision, two-way audio, and real-time video streaming. All these functions are accessible through the IMILAB Home application.
This manual provides detailed instructions for setting up, operating, maintaining, and troubleshooting your IMILAB C21 camera. Please read it carefully before use.
2. What's in the Box
Upon opening the package, please verify that all the following components are included:
- IMILAB C21 Camera
- Power Cable
- Power Adapter
- Installation Parts (for wall mounting)
- User Manual

Image: The IMILAB C21 camera and its included accessories, such as the power cable, adapter, and mounting kit, neatly arranged in the product packaging.
3. Setup
3.1 Physical Installation
The IMILAB C21 camera is designed for indoor use and can be placed on a flat surface or mounted on a wall. Ensure the camera is placed within range of your Wi-Fi network and near a power outlet.
- Placement: Position the camera in a central location to maximize its 360° viewing capability.
- Power Connection: Connect the provided power cable to the camera's micro USB port (located at the back) and plug the adapter into a power outlet. The camera will power on automatically.
- Wall Mounting (Optional): Use the included installation parts to securely mount the camera on a wall. Ensure the mounting surface is stable and can support the camera's weight.

Image: Rear view of the IMILAB C21 camera, highlighting the speaker and the micro USB power input port for connection.
3.2 App Installation and Pairing
The IMILAB C21 camera operates via the IMILAB Home App. Follow these steps to install the app and pair your camera:
- Download the App: Scan the QR codes below or search for "IMILAB Home" on Google Play Store (for Android) or Apple App Store (for iOS).

Image: Screenshot showing the IMILAB Home App download options with QR codes for Google Play and Apple App Store, along with a hand interacting with a smartphone displaying the app interface.
Google Play Store: Download IMILAB Home App (Android)
Apple App Store: Download IMILAB Home App (iOS)
- Create Account: Open the IMILAB Home App and register for a new account or log in if you already have one.
- Add Device: Tap the "+" icon in the app to add a new device. Select the IMILAB C21 camera from the list.
- Follow On-Screen Prompts: The app will guide you through the pairing process, which typically involves scanning a QR code displayed on your phone with the camera lens and connecting to your Wi-Fi network.
Note: This camera is designed to work with the IMILAB Home App. It is not compatible with the Xiaomi Mi Home app.
4. Operating Instructions
4.1 Live View and 360° Pan/Tilt Coverage
Once connected, you can access the live video feed from your camera through the IMILAB Home App. The camera offers a 2.5K resolution (2560x1440p) for clear images.
- Pan/Tilt Control: Use the controls within the app to remotely rotate the camera horizontally up to 360° and vertically up to 110°, providing a complete view of your room.

Image: A visual representation of the IMILAB C21 camera's 360° panoramic view, showing how the camera can cover an entire room, with a smartphone displaying the live feed.
4.2 Starlight Night Vision
The C21 camera is equipped with an F2.0 large aperture lens, enabling it to produce clear and sharp color images even in low-light environments. It can see up to 40 feet in night vision mode.
4.3 Motion Detection and Alarms
The camera features advanced AI human detection. It automatically identifies human movements within its detection range and can send real-time alerts to your smartphone for suspicious activity or incidents.
- Customization: You can adjust detection sensitivity and set specific detection zones within the app.
- Notifications: Configure push notifications to receive instant alerts on your mobile device.
4.4 Two-Way Audio
The built-in microphone and speaker allow for two-way communication. You can listen to what's happening around the camera and speak through the camera using the IMILAB Home App.
- Real-time Conversation: Engage in real-time conversations with family members or pets from anywhere.
4.5 Secure and Flexible Storage
The IMILAB C21 offers flexible storage options for your recordings:
- Micro-SD Card Storage: Insert a Micro-SD card (up to 256GB, not included) into the camera's slot for local storage of video recordings. The slot is located on the front, just below the lens.
- Cloud Storage: Optional cloud storage services may be available through the IMILAB Home App for secure, off-site backup of your footage.
The camera utilizes H.265 video compression, which reduces network bandwidth and storage requirements by 50% while maintaining video quality.

Image: Front view of the IMILAB C21 camera, highlighting the discreetly placed microSD card slot and reset button below the main lens.
4.6 Smart Assistant Integration
The C21 camera is designed to work seamlessly with popular smart home assistants, including Amazon Alexa and Google Assistant.
- Voice Control: Use voice commands to view your camera feed on compatible smart displays (e.g., "Alexa, show me the living room").
- Integration Steps: Refer to the IMILAB Home App settings for instructions on linking your camera with Amazon Alexa or Google Assistant accounts.

Image: The IMILAB C21 camera positioned next to an Amazon Echo Show, demonstrating its compatibility with smart assistants by displaying the camera's live feed on the smart display.
5. Maintenance
- Cleaning: Use a soft, dry cloth to clean the camera lens and body. Do not use liquid cleaners or aerosols.
- Software Updates: Regularly check the IMILAB Home App for firmware updates. Keeping your camera's software up-to-date ensures optimal performance and security.
- Power Cycle: If the camera becomes unresponsive, unplug it from the power source, wait 10 seconds, and then plug it back in.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Camera offline/Cannot connect to Wi-Fi | Weak Wi-Fi signal; Incorrect Wi-Fi password; Router issues; Camera too far from router. | Ensure camera is within Wi-Fi range. Check Wi-Fi password. Restart your router. Re-pair the camera through the app. |
| No video recording to Micro-SD card | SD card not inserted correctly; SD card full; SD card corrupted; Recording settings not enabled. | Reinsert SD card. Format SD card via app. Check recording settings in the app. Replace SD card if corrupted. |
| No motion detection alerts | Motion detection disabled; Sensitivity too low; App notifications blocked. | Enable motion detection in app. Adjust sensitivity. Check phone notification settings for IMILAB Home App. |
| Two-way audio not working | Microphone/speaker disabled in app; Network latency. | Ensure audio functions are enabled in the app. Check network connection stability. |
| Camera not compatible with Xiaomi Mi Home app | This camera model is specifically designed for the IMILAB Home App. | Use only the official IMILAB Home App for this device. |
7. Specifications
| Feature | Specification |
|---|---|
| Model Name | Imilab C21 |
| Model Number | CMSXJ38A |
| Color | White |
| Dimensions (L x W x H) | 7.6 x 7.6 x 10.8 cm |
| Weight | 249 g |
| Power Source | Wired (5 Volt, 10 Watt) |
| Connectivity Technology | Wireless (Wi-Fi) |
| Video Recording Resolution | 1440p (2.5K) |
| Effective Video Resolution | 1440 |
| Frame Rate | 20 frames per second |
| Viewing Angle | 360 Degrees (Pan/Tilt) |
| Night Vision Range | 40 feet |
| Storage | Micro-SD card (up to 256GB), Cloud Storage (optional) |
| Special Features | 2-Way Audio, Motion Sensor, Cry Detection, HD Resolution, Night Vision |
| Recommended Applications | Baby Monitoring, Pet Monitoring, Indoor Security |
| Water Resistance Rating | Not waterproof |
| Material | Plastic |
| Compatible Devices | Smartphone (Android, iOS) |
| Mounting Type | Wall Mount |
8. Warranty and Support
For warranty information, please refer to the terms and conditions provided at the time of purchase or contact IMILAB customer support directly. Keep your proof of purchase for warranty claims.
For further assistance, technical support, or to explore other IMILAB products, please visit the official IMILAB store or support channels:
- IMILAB Brand Store: https://www.amazon.de/stores/IMILab/page/79969AAF-3D90-4471-9058-8CB9313A6F70
9. Safety Information
- This device is for indoor use only. Do not expose it to water or moisture.
- Operate the device within the specified temperature and humidity ranges.
- Use only the provided power adapter and cable to prevent damage.
- Do not attempt to disassemble or repair the camera yourself. Contact qualified personnel for service.
- Keep the camera out of reach of children and pets.
- Avoid placing the camera near heat sources or in direct sunlight.





