In-wall relays

Tiny modules that sit behind an existing switch, socket or appliance and make it smart without changing how it looks. The wall switch still works, and you can control it remotely or trigger it from smart home events.

Before you buy

  • Check your switch. Some need a neutral wire and some don't: buy the right one for your wiring.
  • Mains wiring. These wire into your mains. If you're not confident, use an electrician.
  • Check the load. They're rated from 6A to 16A, so check yours suits what it switches.
  1. Sonoff Zigbee Smart Relay (No Neutral)

    A tiny Zigbee wireless relay that doesn't require a neutral wire – ideal for making your existing light switches and other devices into smart, remote-controlled ones! Introducing the Sonoff ZBMINI...

    Zigbee Needs mains wiring

    Works withAlexaApple HomeGoogle HomeHome Assistantvia a Zigbee hub

    £12.00

    In stock

  2. Sonoff Wi-Fi Smart Relay with Display (230V / 16A)

    TH Elite is a Wi-Fi smart relay with a built-in screen that switches heaters, fans and pumps automatically based on temperature and humidity. Connect a compatible sensor and it'll switch...

    Wi-Fi

    £15.30

    In stock

  3. Sonoff Smart Dimmer Switch (Matter)

    This smart dimmer module uses Matter over Wi-Fi and will work with many smart home ecosystems. Wiring a smart module like this behind your existing light switch means you can...

    MatterWi-Fi Needs mains wiring

    Works withAlexaApple HomeGoogle HomeHome Assistant

    £24.00

    In stock

  4. Sonoff Zigbee Smart Relay (With Neutral)

    Compact Zigbee relay control with a neutral line - ideal for making your existing light switches and other devices into smart, remote-controlled ones! Meet the Sonoff ZBMINI Extreme Zigbee Smart...

    Zigbee Needs mains wiring

    Works withAlexaApple HomeGoogle HomeHome Assistantvia a Zigbee hub

    £9.00

    In stock

  5. Sonoff Smart Wi-Fi Relay (10A/2.2kW)

    Add smart control to almost any mains-powered device with this compact relay. Transform your home appliances into smart devices with the Sonoff Smart Wi-Fi Relay. Supporting app and RF remote...

    Wi-Fi Needs mains wiring

    Works withAlexaGoogle Home

    £9.90

    In stock

  6. Sonoff Wi-Fi Smart Relay (Matter compatible - 10A / 2.4kW)

    MINIR4M / Mini Extreme is Sonoff's first Matter-enabled Wi-Fi smart switch designed for versatility, compatibility, and convenience. Whether you’re upgrading your lighting or adding automation to your appliances, this pint-sized...

    MatterWi-Fi Needs mains wiring

    Works withAlexaApple HomeGoogle HomeHome Assistant

    £11.40

    In stock

  7. Sonoff Wi-Fi Smart Relay With Power Meter (16A)

    POW Origin (POWR316) is your Wi-Fi smart switch and energy-saving sidekick! The Sonoff Wi-Fi Smart Relay With Power Meter keeps a real-time eye on your appliances' power, current, voltage, and...

    Wi-Fi Needs mains wiring

    Works withAlexaHome Assistant

    £12.00

    In stock

  8. Sonoff Wi-Fi Smart Relay With Sensor Input (230V / 16A)

    TH Origin is a Wi-Fi-enabled smart relay that can be triggered automatically by a temperature, humidity, or soil moisture sensor. This Wi-Fi-enabled smart relay brings together remote control, automation, and...

    Wi-Fi Needs mains wiring

    £12.00

    In stock