Shelly Plus i4
Shelly Plus i4 - Image 2
Shelly Plus i4 - Image 3

Shelly Plus i4

£12.99

Out of stock

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Overview

Shelly Plus i4 is a Wi-Fi-operated digital input controller designed for advanced scene control and automation triggering. It connects directly to your Wi-Fi network with no hub required and acts purely as an input reader (no relays included), making it ideal for controlling scenes, actions, and complex automations. Powered by a fast ESP32 processor, Shelly Plus i4 supports multi-click inputs, JavaScript scripting, and advanced integrations, and is designed to fit neatly behind standard wall switches and electrical boxes.

Key features

  • Wi-Fi-operated 4-channel digital input controller with no hub required
  • Input reader only, does not contain relays
  • Four independent AC inputs for switches or buttons
  • Multi-click support with up to 12 possible actions per input
  • Powered by ESP32 with improved API performance
  • JavaScript support for custom logic and complex scenarios
  • Embedded web server for local configuration
  • Compatible with Amazon Alexa, Google Assistant, and Home Assistant
  • Supports REST API, MQTT, and webhooks

Product information

Use cases
  • Scene and Automation Control
  • Manually trigger scenes, routines, or automations using wall switches or buttons.
  • Multi-Action Button Control
  • Use single, double, long, or combination presses to control multiple devices or actions from a single switch.
  • Retrofit Smart Control
  • Upgrade existing wall switches to smart controls without replacing lighting or adding relays.
  • Advanced Home Automation
  • Create complex automation logic using JavaScript, REST API, MQTT, or webhooks.
Technical specifications
Power
Power supply AC
110–240V ±10%, 50/60Hz
Power supply DC
No
Inputs
Channels
4 AC input channels
Multi-click support
Up to 12 possible actions per input
Special Functions
Device temperature protection
Yes
Overload protection
No
Features
HTTP/HTTPS webhooks
Yes
Custom scripts (mJS)
Yes
Operational temperature
-20°C to +40°C
Device power consumption
< 1 W
Intelligent on/off
Yes
Local and remote control
Yes
Sunrise/sunset
Yes
Weekly schedule
Yes
Connectivity
Wireless
Yes
Wi-Fi protocol
802.11 b/g/n
Wi-Fi radio frequency
2412–2472 MHz
Wi-Fi radio signal power
1 mW
Wi-Fi range
Up to 50 m outdoors and up to 30 m indoors (depending on building materials)
Dimensions
Size
42 × 38 × 17 mm
What’s included
  • Shelly Plus i4 input controller

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