1. Overview
The SONOFF TX Gen2 Smart Wall Touch Switch (Model T6-3C-120M) is a 3-channel smart wall switch designed for modern smart homes. It offers touch control, remote control via the eWeLink app, and voice control through Matter-enabled platforms like Apple Home, Google Home, and Amazon Alexa. This device supports a 120-type panel design, fitting most North American junction boxes, and features an independent relay mode to prevent smart lights from going offline due to physical button presses.
Key Features:
- Matter Compatibility: Seamless integration with various smart home ecosystems.
- Independent Relay Mode: Ensures smart lights remain controllable via app/voice even if physical buttons are pressed.
- Nighttime LED Button Indicator: Dimmable LED backlight for easy location in the dark.
- Remote Control & Smart Scenes: Manage lights and create automations via the eWeLink app over 2.4GHz Wi-Fi.
- Voice Control: Works with Apple Home, Google Home, and Amazon Alexa.
- 120-Type Panel Design: Standard fit for North American junction boxes, supporting neutral-wire setups.
Product Overview Video:
This video provides an overview of the SONOFF TX Gen2 Smart Wall Touch Switch, including preparation, installation, and pairing processes.
2. Preparation
Safety First:
Before beginning any installation, ensure the power to the relevant circuit is turned OFF at the circuit breaker. Failure to do so may result in electrical shock or injury.
Package Contents:
- SONOFF TX Gen2 Smart Wall Touch Switch (T6-3C-120M)
- Mounting Screws
- User Manual (containing Matter QR code)
Image: The SONOFF TX Gen2 Smart Wall Touch Switch and its included accessories.
Matter QR Code:
Locate the Matter QR code on the back of the device or on the last page of this user manual. This code is essential for pairing the device with Matter-compatible smart home systems.
3. Installation
- Turn Off Power: Ensure the main power supply to the switch location is OFF at the circuit breaker.
- Remove Old Switch (if applicable): Carefully remove the existing wall switch from the junction box.
- Remove Switch Plate Cover: Use a flat-head screwdriver to gently pry off the front plate cover of the SONOFF TX Gen2 switch from the groove at the bottom. This exposes the wiring terminals.
Image: A screwdriver being used to remove the front panel of the smart switch.
- Check for Neutral Wire: Verify the presence of a neutral wire in your home electrical circuit. The SONOFF TX Gen2 switch supports neutral-wire setups.
- Wire Connections: Loosen the screws on the wiring terminals. Connect the neutral wire to the 'N' terminal, the live wire to the 'L' terminal, and the switch wires (load wires) to the 'L1', 'L2', 'L3' terminals as per your setup (1-channel, 2-channel, or 3-channel). Refer to the wiring diagram below.
Image: A detailed wiring diagram for the 3-channel smart switch, showing connections for Live (L), Neutral (N), and Load (L1, L2, L3) wires.
Image: Close-up view of the neutral, live, and switch wires being connected to the terminals of the smart switch.
- Secure Wires: Tighten all screws firmly to ensure secure electrical connections.
- Install Protective Cover: Place the protective cover back over the wiring terminals.
- Mount the Switch: Carefully place the switch module into the wall mounting box. Fasten it with the provided screws.
Image: The smart switch being secured into a standard wall mounting box with screws.
- Attach Faceplate: Snap the front plate cover back onto the switch module.
Image: The SONOFF TX Gen2 Smart Wall Touch Switch fully installed and ready for use on a wall.
Image: Visual guide for wiring the switch, showing connections for 1-channel, 2-channel, and 3-channel configurations.
Image: A three-step visual guide demonstrating how to remove the protective cover, remove the panel, and install the switch onto the wall.
4. Setup (Pairing)
- Restore Power: Turn the main power supply back ON at the circuit breaker.
- Enter Pairing Mode: Long press any button on the switch for 5 seconds until the Wi-Fi indicator light flashes two short blinks and one long blink. This indicates the device is in pairing mode.
Image: Visual guide for quick pairing using the eWeLink app or a Matter-compatible app by scanning the QR code.
- Pair with eWeLink App:
- Download and open the eWeLink app on your smartphone.
- Tap the '+' icon to add a device.
- Scan the Matter QR code found on the device or in the manual.
- Follow the in-app instructions to connect the switch to your 2.4GHz Wi-Fi network.
- Pair with Matter-Compatible App (e.g., Apple Home, Google Home, Amazon Alexa):
- Open your preferred Matter-compatible smart home app.
- Select the option to add a new device.
- Scan the Matter QR code.
- Follow the app's prompts to complete the pairing process. (Note: Matter integration requires a Matter hub.)
Image: The smart switch is compatible with Matter, allowing integration with Google Home, Home Assistant, Apple Home, Alexa, and Samsung SmartThings.
5. Operation
Touch Control:
Simply tap the touch-sensitive buttons on the switch panel to turn connected lights or appliances ON or OFF.
Remote Control (eWeLink App):
Once paired, use the eWeLink app on your smartphone to remotely control the switch from anywhere with an internet connection. You can turn channels ON/OFF, check their status, and adjust settings.
Voice Control:
Integrate with Apple Home, Google Home, or Amazon Alexa for hands-free control. Use voice commands such as "Hey Siri, turn on the living room light" or "Alexa, turn off Channel 3."
Image: Demonstrates various control methods: direct touch, remote control via smartphone app, and voice control through smart assistants.
Independent Relay Mode:
This mode separates the physical button state from the relay state. When activated, physical presses on the switch will not affect the smart light's online status, ensuring it remains controllable via app, voice, or automation. This prevents accidental disconnections of smart bulbs.
Image: Illustrates how the independent relay mode prevents smart lights from going offline, contrasting with a traditional switch.
Nighttime LED Button Indicator with Dimmable Light:
The built-in LED indicator makes the switch easy to locate in the dark. You can adjust the LED brightness through the app to suit your preference, ensuring it provides subtle visibility without disturbing sleep.
Image: The smart switch featuring a customizable button backlight, designed for comfort and visibility in low light conditions.
Smart Scenes and Timers:
Use the eWeLink app to set scheduled timers (e.g., turn on lights at 7 PM) and create automated scenes (e.g., a "Good Night" scene to shut off all lights). This allows for personalized automation of your home lighting.
Image: A smartphone displaying the timing function interface, allowing users to program schedules, countdowns, and repeat actions for the switch.
Image: An illustration of a smart scene where a human presence sensor detects movement, triggering the smart switch to turn on a light.
Local Control:
The switch supports local control, meaning basic ON/OFF functionality can still be used even if there is no internet connection.
Image: A diagram showing that local control of the switch does not depend on an internet connection or server.
6. Maintenance
Cleaning:
To clean the switch, gently wipe the tempered glass surface with a soft, dry cloth. Avoid using abrasive cleaners or solvents that could damage the finish.
Firmware Updates:
Periodically check the eWeLink app for available firmware updates. Firmware updates can improve performance, add new features, and enhance security. Follow the in-app instructions to perform updates.
Image: A feature overview table indicating which platforms support firmware updates (eWeLink).
7. Troubleshooting
Device Not Pairing:
- Ensure the power is ON and the switch is in pairing mode (Wi-Fi indicator flashing two short, one long).
- Verify your smartphone is connected to a 2.4GHz Wi-Fi network. The switch does not support 5GHz Wi-Fi.
- Keep your phone close to the device during pairing.
- Check if your Wi-Fi signal strength is adequate. A weak signal can cause pairing issues.
- If using Matter, ensure you have a compatible Matter hub and it is properly set up.
Lights Not Responding:
- Check the wiring connections to ensure they are secure and correct.
- Verify that the connected lights are functional.
- If using Independent Relay Mode, ensure the smart light itself is powered and online.
No Remote Control:
- Confirm your switch is connected to Wi-Fi (solid blue indicator).
- Ensure your smartphone has an active internet connection.
- Check if the eWeLink app is up to date.
8. Specifications
| Attribute | Value |
|---|---|
| Product Name | TX Gen2 Smart Touch Wall Switch |
| Product Model | T6-3C-120M |
| Operation Mode | ON-OFF |
| Contact Type | Normally Open |
| Connector Type | Screw Terminal |
| Terminal | Screw |
| Item Dimensions (L x W x H) | 4.72 x 2.91 x 1.48 inches |
| Mounting Type | Wall Mount |
| Contact Material | Copper |
| International Protection Rating | IP00 |
| Number of Positions | 3 |
| Control Method | Touch |
| Connectivity Protocol | Matter, Wi-Fi (2.4GHz) |
| Control Type | On/Off, Dimming (LED indicator), Scheduling |
| Compatible Devices | Apple Home, Google Home, Amazon Alexa, eWeLink app, Matter-compatible devices |
| Item Weight | 4.7 ounces |
| Casing Material | PC + Glass |
| Rating (3C) | 100-240V~ 50/60Hz 10A Max/gang, Total 16A Max Resistive load |
Image: Detailed diagram illustrating the dimensions and key electrical specifications of the TX Gen2 smart switch.
Image: Diagram showing the compatible 120-Type wall mounting boxes for the smart switch.
9. Warranty & Support
Warranty:
The SONOFF TX Gen2 Smart Wall Touch Switch comes with a Two-year warranty from the date of purchase.
Customer Support:
For technical assistance, troubleshooting, or warranty claims, please contact SONOFF customer support:
Email: support@itead.cc
