Open box Sonoff SwitchMan M5-3C-120W – Smart Switch with 3 Channels, Physical Buttons and Wi-Fi Control

What does "open box" mean?

Open-box products are returned products with opened or damaged packaging, but fully checked from a technical point of view and completely functional. They come with the same warranty as new products.

Sonoff SwitchMan M5-3C-120W – 3-Channel Smart Switch with Physical Buttons and Wi-Fi Control

Sonoff M5-3C-120W is a premium three-channel smart switch, designed to provide centralised and efficient control of the lighting in your home. Part of the SwitchMan series, this model stands out for its high-precision mechanical buttons that give natural tactile feedback, making it the ideal solution for anyone who wants to combine the classic experience of a physical switch with the advanced features of a smart home. The type 120 format is ideal for vertical installations or specific rectangular wall boxes.

Main advantages

• Triple Control from a Single Unit: With three independent channels, this switch lets you manage three separate lighting circuits from a single point. It is the perfect solution for areas with multiple light sources, such as living rooms or large hallways, reducing the number of wall boxes needed.

• High-Quality Physical Buttons: The M5-3C focuses on ergonomics. The mechanical buttons are robust and easy to operate, offering a reliable alternative to touch panels while also ensuring a long service life for the device.

• Smart LED Indicator: Each button has a discreet LED indicator. From the app, you can adjust their brightness or switch them off completely, so they do not disturb you at night but remain easy to find when needed.

• Complete Smart Integration: Control the lights from anywhere via the eWeLink app or by voice, as it is compatible with Amazon Alexa, Google Assistant and Siri Shortcuts. You can check the status of the lights (on/off) in real time, even when you are not at home.

• Local Scenes and Automations: You can schedule on/off times or link the switch to other sensors in the Sonoff ecosystem. What is more, it supports the "eWeLink-Remote" function, allowing you to create a wireless two-way (staircase) switching system using the R5 remote or the S-MATE module, with no extra wiring.

Installation and Safety

• Wiring Requirements: To ensure the smart modules and the Wi-Fi connection work, this model strictly requires a Neutral Wire in the mounting box.

• Flame-Retardant Construction: The housing is made of flame-resistant PC V0 material, minimising risks in the event of electrical problems and providing extra safety for your family.

Package contents: Sonoff M5-3C-120W switch, fixing screws, user manual.

Why choose the Sonoff M5-3C-120W?

This model is the top of the range for triple control in the SwitchMan series. It offers a modern, clean look and superior mechanical reliability. It is the perfect choice for users who want a discreet but powerful smart home, where manual control remains just as important as digital control.

Practical use cases

• Replaces a classic wall switch, keeping manual control through the physical buttons, but adding app control and voice commands (Alexa/Google Assistant).
• Used to create lighting scenes that adjust several circuits in a room simultaneously with a single press.
• Integrated into an automation that automatically switches off lights left on after bedtime or when nobody is in the room any more.

Technical specifications: