The Shelly i4 Gen4 is an advanced 4-channel Wi-Fi input device designed to give you unparalleled control over your smart home automations. It allows you to register up to eight different actions from your existing wall switches or buttons, freeing up your Shelly relays for power control only and optimizing your smart system. With its compact design, it can be easily installed behind most switches, even in tight spaces.

Overview

The Shelly i4 Gen4 acts as your command center for activating complex scenes, controlling groups of devices, or performing specific actions with a simple click. Instead of directly controlling a load, it transmits information about button presses to your Shelly app or other compatible smart home platforms. This means you can automate a variety of functions based on single, double, triple, or long presses on up to four connected buttons.

Key Features

• 4 Digital Inputs: Connect up to four existing switches or buttons.
• Multi-click Support: Registers up to 8 different actions (single click, double click, triple click, long click) per input.
• Wi-Fi Connectivity: Requires no hub; connects directly to your 2.4 GHz Wi-Fi network.
• Scene Activation: Triggers custom scenes and automation sequences in Shelly Cloud or other platforms.
• Compact Design: Easily fits behind wall switches in standard EU wall boxes.
• Extremely Fast Processor: For instant response and precise execution of commands.
• Broad Compatibility: Works with Shelly Cloud App, MQTT, REST API, Google Home, Amazon Alexa, and Home Assistant.
• Relay-Free Design: Optimized for input control without including a relay, making it more energy-efficient and less complex for input purposes.

Use Cases

• Advanced Lighting Control: Control individual lights, lighting groups, or scenes with multiple presses on a single switch.
• Home Automation: Activate "home" or "away" scenes, adjust thermostats, or manage blinds with a click.
• Security Features: Trigger a panic alarm or activate recording from security cameras with a specific button press.
• Optimize Existing Switches: Use your current switches to do more than just turn lights on and off.
• Simplify Control: Reduce the need for multiple physical buttons by assigning multiple functions to a single button.

Technical Specifications

• Power Supply: 110-240 V AC
• Maximum Power Consumption: < 0.2 W
• Inputs: 4 Digital Inputs
• Wireless Technology: Wi-Fi 802.11 b/g/n, 2.4 GHz
• Range: Up to 50 m outdoors, 30 m indoors (depending on building materials)
• Dimensions (HxWxD): Approximately 42 x 37 x 17 mm
• Weight: Approximately 16 g
• Mounting: Behind switches, in junction box
• Operating Temperature: -20 °C to 40 °C
• CPU: ESP32-D0WDQ6-V3
• Flash: 4MB

Package Contents (Typical)

Please check with your retailer for exact contents.

• Shelly i4 Gen4
• Manual

Please note: Installation should be performed by a qualified electrician. Specifications and features may vary slightly depending on firmware version. Always refer to the manufacturer's latest documentation.