Sonoff 4CH Pro User Manual

Sonoff 4CH Pro (R2) User Guide
Hi, welcome to use Sonoff 4CH Pro! Sonoff 4CH Pro is a 4 channel din rail
mounting 433MHz RF remote WiFi switch that can independently control
the 4 home appliances. It supports switching among 3 working modes:
inching/interlock/self-locking mode.
Power supply: 90-250v AC(50/60Hz)/5-24v DC. Max current: 10A/gang.
1. Download “eWeLink” app.
Search “eWeLink” in APP Store for iOS version or Google play for Android
version.
2. Wiring instruction
If you want to connect the Sonoff 4CH Pro with lights or appliances. Please
strictly follow the wiring diagram as shown below:

Sonoff 4CH Pro Specifications

General

Channels	4
Wi-Fi Standard	802.11 b/g/n
Max Current	10A per channel
Max Power	2200W per channel
Operating Temperature	-10°C to 40°C
Operating Humidity	5%-90% RH, non-condensing
Material	PC V0
Certification	CE, FCC, RoHS
Voltage Range	90-250V AC
Dimensions	145 x 90 x 40 mm

Summary

Add Device - Initial Steps

Add Device - Pairing Process

Button Press and LED Indicators

Explains the pairing mode activation via button press and WiFi LED behavior.

App Search and Selection

Guides through searching for and selecting the device in the eWeLink app.

Entering WiFi Credentials

Working Mode Settings Introduction

Working Modes - Self-locking and Inching

Inching Mode Operation Details

Working Modes - Interlock Operation

Switching Work Modes - Switches and Safety

Safety Caution for Switch Adjustment

Emphasizes powering off the device before changing switch settings.

Work Mode Switch Configurations

Delay Time Switch K6 Function

Delay Time Settings for K6 Switch

Troubleshooting - Offline Device

Troubleshooting - Pairing and WiFi Issues

Offline Device Status Diagnosis

Provides reasons and solutions for device offline status based on WiFi LED.

APP Device Discovery Problems