Sonoff 4CH Pro R3 WiFi Smart Switch

Four Independent Channels — One Powerful Smart Switch

The Sonoff 4CH Pro R3 WiFi Smart Switch gives you independent smart control of four separate circuits from a single compact unit. With WiFi and RF 433MHz dual control, interlock and self-locking modes, and DIN rail mounting support, it's the go-to choice for advanced home automation, gate control, and multi-circuit switching applications.

• 4 independent channels — control four separate circuits simultaneously
• WiFi + RF 433MHz dual control — works with or without internet
• Interlock mode — ideal for motor control (e.g. gate motors, roller doors)
• Self-locking mode — maintains state after power interruption
• DIN rail mountable — clean installation in electrical enclosures
• Remote control via the eWeLink app from anywhere
• Set schedules, timers, and automations for each channel independently
• Compatible with Amazon Alexa and Google Home voice control
• Works with Home Assistant via eWeLink integration

Four circuits, one smart switch — the 4CH Pro R3 is built for serious home automation.