Sonoff 4CH Pro R3 4-Channel Wireless Smart Relay

Sonoff 4CH PRO R3 – 4-Channel Wireless Relay

A 4-channel wireless smart relay with 433MHz radio frequency (RF) control. Switch multiple connected devices together or independently from your smartphone or an RF remote.

• Smartphone control
• Timer function
• Status feedback
• Shared control
• Device settings
• WeChat customer support
• Multiple and independent control

Compatible with the Sonoff RF 433 Remote

Control the relay via 433MHz radio frequency (RF) using the Sonoff RF 433 MHz remote. Please note: the remote is NOT included in the package and must be purchased separately.

3 Operating Modes

Choose the operating mode with the switches on the main board (K5, S6).

• Mode 1 – Self-locking: switch each of the 4 connected devices on or off independently
• Mode 2 – Interlock: only one device can be on at a time; the other 3 are switched off simultaneously
• Mode 3 – Inching (temporary off): set devices to switch on for an interval of 1-16 s, after which they switch off automatically

Main Board Layout

• Working mode switch K5
• Working mode switch S5
• Delay time switch K6
• 433 MHz reset button
• 433MHz frequency receiver
• WiFi module
• Relay 1–4 LEDs and WiFi LED
• Relays 1–4, each with NO, COM and NC terminals
• DC input: 9V~24V
• AC input: 90V~250V

Wiring

Connect the live (phase) and neutral wires from the 90V~250V AC supply to the input terminals, then wire your lights or sockets to the four relay outputs.

Set Up with the eWeLink App

Search for "eWeLink" in the App Store (iOS) or Google Play (Android), or scan the QR code.

• Press and hold button R4 for 7 seconds until the WiFi LED blinks quickly 3 times in a row, pauses and repeats; then tap the "+" button in the app
• Select "Home Bridge" and tap "Next"
• Enter your network name and password, then tap "Next"
• Wait a few seconds while the phone and the Sonoff 4CH Pro R3 synchronise
• Enter a device name and tap "Next" to complete pairing
• The Sonoff 4CH Pro R3 has been added successfully