Relays & Switches. The core Shelly line: WiFi/Zigbee/Bluetooth relays that fit behind an existing wall switch, socket, or in a back box, adding smart on/off and (on the PM/EM models) power-metering control to lights, sockets and appliances you already have — no new wiring required, no hub needed for the WiFi and Bluetooth models. Choose by channel count (1, 2 or more circuits), whether you need power metering (PM/EM suffix), and connectivity (plain WiFi, Gen3/Gen4 with Zigbee, or Qubino Wave for Z-Wave networks). Most retrofit directly onto existing 5-6A lighting circuits or 13-16A ring mains.
An optocoupler-based accessory that electrically isolates 230V AC switches and control signals from low-voltage DC inputs, letting existing mains-wired switches, buttons, relays and sensors trigger compatible Shelly devices safely. Designed for retrofits where existing AC wiring needs to control DC-input Shelly products such as the Plus RGBW PM or Plus Uni.
Converts 230V AC control signals into safe DC trigger inputs
Optocoupler isolation protects low-voltage inputs from mains voltage
Compatible with Plus RGBW PM, Pro RGBWW PM, Plus Uni, Plus Add-On
Also works with buttons, relays, sensors and specialist controllers
Shelly i4 Gen3 is a four-input controller for triggering scenes and controlling other Shelly relays, sensors, or HTTP/MQTT devices from existing wall switches. It fits behind a standard switch, supports up to sixteen distinct click actions across its four inputs, and adds KNXnet/IP support for KNX integration.
Four independent inputs, up to 16 possible actions
Supports KNXnet/IP for KNX system integration
8MB memory ESP processor for faster response
Also works as a Wi-Fi range extender and Bluetooth gateway
Shelly 2PM Gen3 is a compact two-channel relay with power measurement and cover control, able to drive roller shutters, blinds, awnings, gates and garage doors with position control, including Venetian blind tilt. It retrofits into standard wall boxes behind existing switches, with an embedded web interface for local control.
Two channels, 10A each (16A total, 18A peak)
Roller shutter mode with position control, incl. Venetian blinds
Power measurement on AC loads plus embedded web interface
Retrofits into standard wall boxes behind existing switches
The Shelly 1PM Mini Gen4 pairs the compact retrofit relay format of the 1 Mini with real-time power metering, switching up to 8A at 240V AC. It supports Wi-Fi, Bluetooth, Zigbee and Matter (including Apple HomeKit), and stores energy usage data to the free Shelly cloud for analysis over time.
Real-time power metering with free cloud data storage
Multiprotocol: Wi-Fi, Bluetooth, Zigbee and Matter (HomeKit)
Switches up to 8A at 240V AC
Built-in voltage, current and overpower protection cutoffs
The Shelly 1 Mini Gen4 is a compact retrofit relay small enough to fit behind a wall switch or socket, switching up to 8A at 240V AC or 5A at 30V DC. It offers Wi-Fi, Bluetooth, Zigbee and Matter connectivity (including Apple HomeKit), and can be wired for dry, potential-free contacts where isolated switching is needed.
Dry, potential-free contact option for isolated switching
Multiprotocol: Wi-Fi, Bluetooth, Zigbee and Matter (HomeKit)
The Shelly 4-Channel Decoupler 230V lets existing 230V wall switches trigger up to four low-voltage DC inputs on compatible Shelly devices, using optocouplers to electrically isolate the AC and DC sides. It's designed for retrofitting traditional switches onto devices like the Plus RGBW PM, Pro RGBWW PM, Plus Uni and Plus Add-On.
Four independent AC-to-DC input channels
Optocoupler isolation keeps AC and DC circuits separate
Compatible with Plus RGBW PM, Pro RGBWW PM, Plus Uni, Plus Add-On
Works with buttons, relays, sensors and specialist controllers
The Shelly Qubino Wave PM Mini is a Z-Wave power meter only — it has no relay — designed to retrofit into tight electrical boxes for pure energy monitoring. Built on Z-Wave 800 series with Security 2 authentication and SmartStart pairing, it works with any Z-Wave certified gateway and reports consumption up to 16A at 240V.
Power metering only, no relay included
Z-Wave 800 series with Security 2 authentication
SmartStart automatic setup with certified Z-Wave gateways
The Shelly Plus RGBW PM is a compact controller for 12V or 24V DC LED strips, supporting RGBW, RGB and white light profiles. It measures power draw in real time, lets you dim colour and white channels independently, and includes night mode and over-current protection for safer long-term use on LED runs.
Independent dimming control for RGB and white channels
The Shelly Pill is a USB-C powered Gen3 sensor hub that bridges third-party sensors and low-voltage devices into your smart home. Out of the box it reads DS18B20 and DHT22 temperature/humidity sensors, and add-ons extend it to analogue voltage and digital I/O monitoring, while also acting as a Bluetooth gateway for Shelly BLU devices.
Plug-and-play support for DS18B20 and DHT22 sensors
Doubles as a Bluetooth gateway for Shelly BLU devices
Expandable via add-ons for analogue voltage and digital I/O
Powered via USB-C (5V) for simple, low-power installation
