1. Product Introduction
The Tuya M9 Pro is an intelligent multi-function composite switch designed for modern smart homes. It integrates various control capabilities including lighting, scene management, dimming, and curtain/air conditioning control. This device supports Zigbee 3.0 protocol for stable performance and can be controlled via a mobile application or voice assistants.
Key features include:
- Built-in wall-mounted concealed structure for easy installation.
- Smart home interconnection, scene mode, device automation, and remote APP control.
- Control of smart devices such as lights, curtains, and air conditioners without manual operation.
- Compatibility with Tuya ecosystem devices.
- Offline local use support, ensuring basic functionality even if the gateway is offline.
Video: Tuya M9 Pro Smart Switch Product Overview and Features.
Figure 1: Tuya M9 Pro Multi-function Smart Switch.
Figure 2: Application Scenarios.
2. Specifications
2.1 General Specifications
| Attribute | Value |
|---|---|
| Model Number | M9 Pro |
| Brand Name | Tuya |
| Voltage | 110V-220V (AC 100-240V, 50/60Hz) |
| Origin | Mainland China |
| Wireless Protocol | Zigbee 3.0 (802.15.4 PHY/MAC Zigbee network protocol stack) |
| Screen | 1.9-inch 320*170 resolution LCD display |
| FLASH Memory | 8M |
| Relay Channels | 4 channels; single channel load ≤ 500W |
| Operating Temperature | 0°C ~ 40°C |
| Operating Humidity | 5% ~ 90% RH without condensation |
| Net Weight | 0.3 kg (210g) |
2.2 Dimensions
| Measurement | Value |
|---|---|
| Product Size (excluding base) | 86mm x 86mm x 10.3mm |
| Product Size (including base) | 86mm x 86mm x 37mm |
| Package Length | 12 cm |
| Package Width | 21 cm |
| Package Height | 7 cm |
Figure 3: Product Dimensions.
Figure 4: Zigbee 3.0 Protocol Benefits.
3. Setup and Installation
This product is designed for installation in a plastic junction box conforming to the JB/T 8593 standard, with a minimum depth of 50mm. It requires a Tuya Zigbee gateway or Matter gateway for full functionality.
3.1 Safety Precautions
- Installation and disassembly must be performed by a professional electrician.
- Always cut off the main power switch before installing or disassembling to prevent electric shock.
- Keep the product away from fire and water sources.
- Do not use in damp environments (e.g., bathrooms).
- Ensure the mains power supply is switched off at the circuit breaker or fuse box before any installation or maintenance.
3.2 Installation Steps
- Turn off the main power switch and use an electroprobe to confirm that the live wire in the junction box is not electrified.
- Take down the back seat of the switch and install it in the junction box.
- Check the wiring to ensure that the copper wire is in good contact with the terminal and there is no exposed wire.
- Use the installation screws to fix the base inside the junction box and snap the panel back.
- Important: Do not screw too tightly during installation to avoid deformation or damage to the screen and hardware.
- If problems occur during installation, do not force the installation. Ensure the wall is level and check the bracket.
Figure 5: Installation Diagram (Fixing the back seat).
Figure 6: Installation Diagram (Securing to wall).
3.3 Wiring Diagram
The M9 Pro switch supports AC 110V-220V, 50Hz/60Hz input. It has 4 output channels, each capable of handling up to 500W. Ensure correct connection of Neutral (N) and Live (L) wires, and connect your loads (e.g., lights) to the numbered output terminals (1, 2, 3, 4).
Figure 7: Electrical Wiring Diagram.
For a complete smart home setup, the switch needs to be integrated with a Tuya Zigbee Gateway. This gateway connects to your router via WiFi/RJ45 and allows the switch to communicate with other Zigbee devices like spotlights and electric curtains, as well as with your mobile phone for app control and smart scenes.
Figure 8: Smart Home System Wiring Diagram.
4. Operating Instructions
The M9 Pro Smart Switch features a 1.9-inch LCD display and four function keys for intuitive control. It automatically powers on when connected to the power supply.
4.1 Display and Basic Functions
The display shows time and weather information, which is automatically updated every 2 hours (weather function requires a gateway with version 1.24.1 or above). It also includes a human body motion sensor with an effective detection distance of 1-1.5 meters, causing the screen to light up when someone approaches and turn off when no one is around.
Figure 9: Function Description of the Display.
Figure 10: Multi-language Display and Sensors.
The M9 Pro supports various functions including:
- Switch Function: Control lights (4-way local switch).
- Scene Function: Bind to smart scenes for automated actions.
- Curtain Function: Control curtains (open, close, pause, resume, percentage).
- Dimming Function: Adjust brightness and color temperature of lights.
- Thermostat Function: Control air conditioning via a wired gateway (requires Demuri wired control gateway).
Figure 11: Product Configuration Overview.
4.2 App Control and Networking
The M9 Pro switch can be controlled and configured using the Tuya Smart APP. It is compatible with popular smart home platforms like Apple Home, Google Home, and Amazon Alexa.
Figure 12: Smart Home Platform Compatibility.
Networking Settings:
- Press and hold any power key for more than 10 seconds to access the settings menu.
- Select "Rejoin the Network" and confirm with Function Key 3. The switch will return to the home page, and key indicator lights will flash alternately, indicating it's in networking state.
- Open the Tuya Smart APP, select your gateway, add a sub-device, and follow the prompts to discover and complete the new device setup.
- After connecting to the network, the switch will automatically obtain weather and time zone information within 1-3 minutes (requires wired gateway version 1.24.1 or above for weather).
Figure 13: Tuya Smart App Interface for Configuration.
4.3 Function Key Operations
The M9 Pro has four physical function keys. Long-pressing any key for 10 seconds brings up the settings menu. Function Key 1 and 2 are for page up/down, Function Key 3 confirms, and Function Key 4 returns to the main page.
- Ordinary Switch: One-key control, multiple control associations. Indicator light is white when ON, yellow when OFF.
- Scene Switch: Bind to a scene mode. Supports offline use.
- Dimming Switch: Short-press to switch state. Long-press (2+ seconds) to enter dimming settings. Function Keys 1-2 adjust brightness, 3-4 adjust color temperature. Supports offline use.
- Curtain Switch: Control curtain open, close, pause, resume, and percentage.
- Thermostat Switch: Only Function Key 4 can be set as a thermostat switch. It requires binding to a Demuri wired control gateway and cannot be used independently. Displays indoor temperature and humidity.
4.4 Other Settings
- Power-on State: Configure the switch's state after a power outage (power off, power on, or remember last state). Can be set individually or for all channels.
- Radar Settings: When enabled, the human motion sensor detects movement within 80-120 cm, lighting up the screen. The screen turns off automatically after a delay when no movement is detected.
- Radar Off: Disables motion detection; screen will not light up automatically. Useful for sleep mode.
- Constantly On Screen: The LCD screen remains on continuously.
- Backlight Switch: Turn the key indicator lights on or off.
5. Maintenance
To ensure the longevity and proper functioning of your Tuya M9 Pro Smart Switch, follow these maintenance guidelines:
- Regularly clean the screen and exterior with a soft, dry cloth. Avoid abrasive cleaners or solvents.
- Ensure the product is not exposed to excessive moisture or direct sunlight.
- Periodically check for any loose connections or signs of wear. If any issues are found, consult a professional electrician.
- Keep the firmware updated through the Tuya Smart APP to ensure optimal performance and access to new features.
6. Troubleshooting
- Switch not responding:
- Check if the main power switch is on.
- Verify the wiring connections are secure.
- Ensure the device is powered on.
- Device offline in APP:
- Check your Zigbee gateway's status and network connection.
- Ensure the switch is within range of the gateway.
- Try rejoining the network via the switch's settings menu (long-press any key for 10 seconds, select "Rejoin the Network").
- If the gateway fails or is offline, the M9 Pro supports offline local use for basic switch functions.
- Weather information not displaying:
- Ensure your gateway's firmware version is 1.24.1 or above.
- Verify the gateway has a stable internet connection.
- Screen not lighting up with motion:
- Check if "Radar Settings" is enabled in the switch's settings.
- Ensure there are no obstructions blocking the human motion sensor.
7. User Tips
- Offline Functionality: The M9 Pro supports offline local use, meaning that even if your Zigbee gateway loses its internet connection, you can still operate the basic switch functions directly from the panel. This is a great feature for reliability.
- Mounting: For wall mounting, a standard electrical box is required. Ensure the box has a depth of at least 50mm to accommodate the switch's base.
- SmartLife Integration: This device is designed to work with Tuya SmartLife components. Ensure your SmartLife app and gateway are up-to-date for seamless integration.
8. Warranty and Support
For detailed warranty information, please refer to the Product Warranty Card included with your purchase. It contains sections for User Information, Product Information, Dealer Information, and Maintenance Details.
Important Safety Information: Installation must be carried out by a qualified electrician in accordance with local wiring regulations. Before installation or maintenance, ensure the mains power supply is switched off at the circuit breaker or fuse box.
A comprehensive user manual in PDF format is available for download. You can access it here.
