The Sonoff 4CH Pro R3 is a versatile 4-channel Wi-Fi smart switch that integrates seamlessly into your home automation system. Equipped with an ESP8285 Wi-Fi module, an ST32F030C6 microcontroller, and a 433MHz RF receiver, it offers both app and RF remote control capabilities.
Key Features
- Independent Control: Manage up to four connected appliances individually via the eWeLink app or a 433MHz RF remote.
- Three Operating Modes:
Self-Locking Mode: Toggle each device on or off independently.
Inching Mode: Activate a device for a set duration (1-16 seconds).
Interlock Mode: Turn on one device while simultaneously turning off the others. - DIN Rail Mounting: Designed to fit standard DIN rails, making installation in electrical panels straightforward.
- Hacker-Friendly: Supports external firmware flashing for advanced customization.
- Scheduling & Timers: Set countdowns, schedules, or loop timers to automate appliance operation.
- Smart Scenes: Create automation scenarios where one device's action triggers others.
- Voice Control: Compatible with Amazon Alexa and Google Assistant for hands-free operation.
- Share Control: Easily share device access with family members through the eWeLink app.
Technical Specifications
- Voltage Range: 100-240V AC (50/60Hz) / 9-23V DC
- Maximum Load: 10A per channel, 40A total
- Wireless Frequency: 2.4GHz Wi-Fi
- Security: WPA/WPA2 encryption
- Enclosure Material: PC V0
- Operating Temperature: -10 C to 40 C
- Dimensions: 145 × 90 × 34 mm
- Humidity Range: 5%-95% RH, non-condensing
Whether you're automating home appliances, controlling gates, or integrating with other smart devices, the Sonoff 4CH Pro R3 offers flexibility and reliability to meet your needs.
What's in the box
1 x Sonoff 4 channel Pro Smart switch
1 x User manual
2 x Mounting brackets
