1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your KERUI K259 5MP Tuya Smart Mini WiFi IP Camera. This indoor security camera features 5MP Ultra HD resolution, AI human detection, automatic tracking, color night vision, two-way audio, and can be controlled via the Tuya Smart or Smart Life app. Please read this manual thoroughly before use and retain it for future reference.
2. Safety Information
- Ensure the camera is connected to a stable 5V power supply.
- Do not expose the camera to water, moisture, or extreme temperatures.
- Avoid placing the camera in direct sunlight or near heat sources.
- Do not attempt to disassemble or repair the camera yourself. Contact customer support for assistance.
- Keep the camera and its accessories out of reach of children.
3. Package Contents
- 1 x KERUI 5MP Tuya Smart Mini WiFi IP Camera
- 1 x Power Supply Adapter (Please select the correct plug type for your region: EU, UK, AU, US)
- 1 x User Manual (PDF version available online)
- 1 x Reset Pin (for camera reset)

4. Product Overview
Familiarize yourself with the main components of your camera:

- MIC: Built-in microphone for audio input.
- Lens: 5MP Ultra HD camera lens.
- Infrared Lens: For enhanced night vision capabilities.
- Photoresistance: Detects ambient light for automatic day/night mode switching.

- Speaker: For two-way audio communication.
- USB Interface: Power input (5V).

- Reset: Hidden button for factory reset.
- TF Card Slot: For local storage using a microSD card.
5. Setup Guide
5.1. Download and Install the App
- Scan the QR code provided in the quick start guide (or search for "TuyaSmart" or "SmartLife" in your mobile device's App Store or Google Play).
- Download and install the app.
- Open the app and register a new account using your email address.
- Enter the verification code sent to your email (check junk/spam folder if not found) and set your password.

5.2. Prepare for Connection
- Ensure your phone is connected to a 2.4GHz Wi-Fi network. The camera does not support 5GHz Wi-Fi.
- Enable Bluetooth and location permissions on your phone.
5.3. Power On and Reset the Camera
- Connect the camera to the power supply using the provided adapter.
- Wait for the camera to boot up and complete its initial rotation.
- Locate the reset hole (refer to Figure 4.3). Insert the provided reset pin (or a similar thin tool) and long-press the reset button inside for approximately 6 seconds until you hear a reset tone. This indicates the camera is ready for pairing.
5.4. Add Device to App (Bluetooth Search)
- In the Tuya Smart/Smart Life app, click "Add Device".
- The app will automatically search for nearby Bluetooth devices. Select the detected camera device and click "Next".
- The app will automatically obtain your connected Wi-Fi SSID. Enter your 2.4GHz Wi-Fi password and click "Next".
5.5. Add Device to App (QR Code Scan)
- In the Tuya Smart/Smart Life app, click "Add Device" then navigate to "Camera & Lock" and select "Smart Camera (Wi-Fi)".
- Switch to the QR code pairing method in the upper right corner of the page, then click "Next".
- Confirm that the app displays the correct 2.4GHz Wi-Fi name and enter your Wi-Fi password. Click "Next".
- Remove any plastic sticker from the camera lens.
- Aim the camera lens at the QR code displayed on your phone screen. Keep a distance of 15-20cm (approximately 6-8 inches) between the phone and the camera. Slowly adjust the phone's position until the camera successfully reads the QR code and you hear a successful scan prompt tone.
- Click "Next" in the app to complete the pairing process.
5.6. Memory Card Installation
- Gently push the camera's pan (top part) upwards to reveal the TF card slot.
- Insert a Class 10 or U1 standard microSD card (up to 128GB capacity) into the slot with the contacts facing upwards. A U3 standard SD card is recommended for better performance.
- Once inserted, you may need to format the memory card within the app's settings. If the card is not recognized, format it to FAT32 on a computer first, then try formatting it again in the camera app.
6. Operating Instructions
6.1. App Interface and Controls
After successfully adding your camera, you can access its features through the Tuya Smart/Smart Life app:
- Live View: Watch real-time video feed from your camera.
- PTZ Control: Use the directional controls in the app to rotate the camera 355° horizontally and 80° vertically, providing a full 360° coverage.
- Two-way Audio: Communicate with people near the camera using the built-in microphone and speaker.
- Snapshot: Capture still images from the live feed.
- Video Record: Manually record video clips.
- Playback: Review recorded footage stored on the microSD card or cloud.
- Cloud Storage: Access cloud-stored recordings (subscription may be required).
6.2. Motion Detection and Tracking
The camera features advanced motion detection and AI human tracking:
- Sensitive Motion Detection: The camera accurately picks up and alerts you to any slightest movements.
- AI Humanoid Detection: Configure detection zones and lines to specifically identify human movement, reducing false alarms.
- Automatic Tracking: When a moving object (especially a human) is detected, the camera will automatically pan and tilt to follow its movement.
- Alarm Sensitivity: Adjust the motion detection sensitivity (Low, Medium, High) in the app settings to suit your environment.


6.3. Night Vision
The camera provides clear surveillance even in low-light conditions:
- Enhanced Infrared Night Vision: Non-invasive infrared sensors ensure clear, high-definition video day and night.
- Color Night Vision: Provides full-color images in low-light environments, offering more detail than traditional black and white night vision.

6.4. Storage Options
- Local Storage (TF Card): Supports up to 128GB microSD cards. Utilizes H.264 compression for efficient storage.
- Cloud Storage: An optional cloud storage service is available for secure backup of your recordings. Check the app for subscription details.
Recording Modes:
- Event Recording: Records video only when specific events (e.g., motion detection) are triggered.
- Non-Stop (24/7) Recording: Continuously records video.
6.5. Private Mode
Activate Private Mode in the app to put the camera into sleep mode. This cuts off audio and video connections, protecting your privacy when needed.
7. Specifications
| Feature | Specification |
|---|---|
| Model Number | K259 |
| Brand Name | KERUI |
| Megapixels | 5 MP (5.0 Megapixels) |
| Lens (mm) | 3.7mm |
| Viewing Angle | 135° (Diagonal) / 85° (Horizontal) |
| Connectivity | WIFI (2.4GHz only) |
| AI Functions | Smart Tracking, Human Detection |
| Color Night Vision | Yes |
| App Name | Tuya Smart, Smart Life |
| Power Mode | Mains Electricity |
| Power Supply (V) | 5V |
| Internal Storage | Supports TF Card up to 128GB |
| Installation | Normal, Wall Mounted, Pendant Mount |
| Shell Material | Plastic |
| PTZ Control | 355° Horizontal, 80° Vertical Rotation |
| Video Compression | H.264 |
| Scene | Indoor |
| Supported Mobile Systems | Android, iOS |
| Smart Home Platform | Tuya |
8. Troubleshooting
- Camera doesn't start after connecting to power: Try using a different power supply adapter.
- Camera can't enter Wi-Fi connection mode: Replace the power supply and ensure you reset the camera *after* it completes its initial rotation. Use a pin to press the reset button for 6 seconds.
- Camera can't connect to Wi-Fi:
- Confirm your Wi-Fi network is 2.4GHz, as the camera does not support 5GHz Wi-Fi.
- Ensure your Wi-Fi account (SSID) and password are simple and do not contain special characters.
- Try using another phone's hotspot to check if the camera can connect, which helps rule out router restrictions or encryption issues.
- If using QR code scan, adjust the phone's angle and distance (15-20cm) and try multiple times until a successful scan tone is heard.
- Camera is offline: Change the power source, remove the SD card, then reset the camera.
- Camera only filming in black and white: Check the night vision settings in the app. Ensure color night vision is enabled if desired.
- No audio or low audio: Verify the volume settings in the app and ensure two-way audio is enabled.
- Does it work without connecting to a router? No, the camera requires a 2.4GHz Wi-Fi connection for full functionality and remote access via the app.
- Does it need to be connected to power constantly? Yes, the camera is powered by mains electricity (5V adapter) and is not battery-operated.
- QR code not recognized: Ensure the camera lens is clean and free of any plastic stickers. Adjust the distance (15-20cm) and angle of the phone screen relative to the camera lens.
9. User Tips
- When adding the device, ensure you point the camera lens directly at the QR code on your phone screen for successful pairing.
- For memory card installation, gently push the camera's top section upwards to easily access the TF card slot.
- If your microSD card isn't recognized, format it to FAT32 on a computer before attempting to format it again within the camera app.
- To optimize Wi-Fi connectivity, ensure your network is 2.4GHz and avoid complex special characters in your Wi-Fi password.
- The camera is compatible with the Tuya Smart and Smart Life apps, which generally support integration with smart home platforms like Alexa. Refer to the app for specific integration instructions.
10. Warranty and Support
For further assistance or if you encounter any issues with your KERUI K259 camera, please refer to the official user manual PDF available online at https://manuals.plus/m/917881b84ea7e686183531de53a3fbf1d8ec92521d765ac6572959bf0b17890d or contact customer support.
If the item is found to be defective, a replacement or refund may be arranged according to the seller's policy. Please allow up to 24 hours for a response from support.