Sonoff 4-Channel DIY Smart Switch
4CHPROR3

Sonoff 4CH Pro R3 is an ESP8285 WiFi module based 4 channel (4-way) WiFi wireless switch. It integrates with MCU ST32F030C6 and 433MHz receiver. Sonoff 4CH Pro supports to connect and control 4 home appliances, which can be separately turned on/off by app eWeLink and 433MHz remote.

Users can switch among 3 modes: self-locking mode, inching mode and interlock mode. In self-locking mode, users can turn on/off the 4 connected devices independently. In inching mode, users can turn on connected devices for 1-16s (Sonoff 4CH Pro R3). In interlock mode, users can turn on 1 device every time, and turn off other devices at the same time.

The enclosure supports din-rail mount! A DIN rail is a metal rail of a standard type widely used for mounting circuit breakers and industrial control equipment inside equipment racks.
Sonoff 4CH Pro is hacker-friendly! You can flash external firmware!

Features:
- Support independently turn on/off 4 home appliances
- Support to turn on/off home appliances by local toggle buttons
- Support tracking device status and remote control through APP
- Support control by 433MHz remote indoor
- Support switching among self-locking mode, inching mode and interlock mode
- Support countdown timer and scheduled timer
- Support share control
- Electrical Characteristics
- Voltage range: 100-240v AC(50/60Hz) /9-24v DC
- Max current: 10A/channel 40A/Total
- Max Power: 2200W/channel
- Wireless Frequency: 2.4Ghz
- Operating - Temperature(recommended): 0ºC-40ºC(32°F-104°F)
- Operating Humidity: 5%-90%RH, Non-condensing
- Max soldering temperature: 260 degrees