Shelly Plus i4
£15.29
Shelly Plus i4 is a four-input controller for triggering scenes and controlling other connected Shelly relays, sensors, or HTTP/MQTT devices from an existing wall switch. It fits behind standard switches, supports up to twelve click actions across its inputs, and includes TLS encryption with support for external sensor add-ons.
- Four independent inputs, up to 12 possible actions
- TLS encryption for secure communication
- Standardised shell supports external sensor add-ons
- Pairs easily via Bluetooth using the Shelly Cloud App
Buy the Shelly Plus i4 online in the UK from ShellyUK — genuine Shelly stock with fast UK delivery.
Shelly Plus i4 allows you to manually activate or deactivate any created scene, run synchronized actions, or execute complex trigger scenarios. Enhanced with an extremely fast processor, Shelly Plus i4 will immediately command the execution and notification of various actions. You can use Shelly Plus i4 to control other connected Shelly relays, sensors, or HTTP and MQTT-controlled devices. Small enough to fit behind every wall switch, Shelly Plus i4 can control the action of four inputs.
Shelly Plus-Series devices pack an extremely fast processor, quicker connectivity, improved integration, and enhanced safety! You can now add devices easily via Bluetooth connection, using the Shelly Cloud App. Shelly Plus line supports TLS encryption and has an improved shell for standardized support for external sensor addons.
Four independent inputs, up to 12 possible actions
TLS encryption for secure communication
Standardised shell supports external sensor add-ons
Pairs easily via Bluetooth using the Shelly Cloud App
Where you'd use it
Sensor-expanded scene switch
Pair it with a compatible external sensor add-on to combine physical switch inputs with environmental readings in a single retrofit device, rather than fitting a separate sensor unit.
TLS-secured input triggers
Use its TLS encryption support where the switch inputs are triggering sensitive automations, such as access control or alarm-adjacent actions, and you want the traffic properly secured rather than sent in the clear.
Retrofit four-gang scene control
Wire it behind an existing four-gang switch plate so each physical switch can trigger a scene, control another relay, or hit an HTTP/MQTT endpoint instead of driving a load directly.
Specification
Connectivity
- Wi-Fi Protocol
- 802.11 b/g/n
- Wi-Fi Radio frequency
- 2412-2472 МHz
- Wi-Fi Radio signal power
- 1mW
- WiFi Range • up to
- 50 m outdoors • up to 30 m indoors
Protection & Safety
- Device temperature protection
- Yes
Physical & Build
- (H x W x L)
- 42 x 38 x 17 mm
Environmental
- Operational temperature
- -20°C to +40°C
Power & Electrical
- Power supply
- AC 110-240V ±10%, 50/60Hz
- Device power consumption < 1W
- Channels
- 4
Smart Features
- Custom scripts (mJs)
- Yes
Other
- Multi-click support Up to
- 12 possible actions
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