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:
You may choose to power up by 5-24V DC or by 90-250V AC. Each relay
without voltage output.
R1-R4 work as local control switches, you can directly press it to turn
on/off the corresponding gang. They also work as pairing button.
If you connect the Sonoff 4CH Pro with a motor, the wiring instruction is
as below:
Working Mode Settings
RF Remote Settings
3. Add Device
1. Power up your device through 90-250v AC(50/60Hz) or 5-24v DC.
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