Sonoff 4CH Pro is a 4 gang WiFi switch. It supports switching among 3 working modes: interlock/self-locking/inching(0.25-4s adjustable) mode. It integrates with a 433MHz RF receiver module, making it possible for the switch to be controlled by RF Remote.The Sonoff 4CH Pro smart switch is DIN Rail mounted.

Users can remotely turn on/off the connected lights/appliances by iOS/Android App eWeLink or 433MHz RF Remote. They can create 8 enabled single/repeat/countdown timers to automatically turn on/off at the specified time. The timers can run themselves even when network is unavailable. To let the devices be controlled by their family, they can simply share the devices to them and give specified timers permissions. They can even create some scenes or smart scenes to trigger ON/OFF the switch.

Works With Amazon Alexa

You can ask Alexa to turn on/off Sonoff 4CH Pro.

Standard voice control commands phrases for Sonoff 4CH and Sonoff 4CH Pro (if you just say the device name, Alexa will turn on/off all the 4 gangs immediately):

Alexa, turn on {deviceName}
Alexa, turn off {deviceName}

Alexa, turn on {deviceName} {gangName}
Alexa, turn off {deviceName} {gangName}

The default names for the 4 gangs are: outlet 1, outlet 2, outlet 3, outlet 4. You can change the name if you like.

Explanation: if the device name of your Sonoff 4CH is “My Switch”, the gang name is “Outlet 1”, then you can control with “Alexa, turn on My Switch Outlet 1”.

In self-locking mode, users can turn on/off the 4 connected devices instantly and separately.

In interlock mode, users can turn on one device every time, and turn off other devices at the same time.

In inching mode, users can turn on the connected devices for 0.25-4s(the time is adjustable).

Users can set some devices in inching mode, while the others in self-locking mode.

Features

• Turn on/off 4 home appliances remotely
• Supports switching among inching/interlock/self-locking modes
• Device status’s synchronously display
• Scheduled/Countdown timers
• Share control
• Supports setting power on status
• 433MHz RF Remote control
• Works with Amazon Echo, Echo Dot, Amazon Tap
• Works with Google Home
• Works with Google Nest

Specifications

• Voltage Range: 90-250V AC(50/60Hz) / 5-24V DC
• Max Current: 10A/gang
• Max Power: 2200W/gang
• Wireless Frequency: WiFi 2.4GHz
• Wireless Standard: 802.11 b/g/n & 433MHz
• Security Mechanism: WPA-PSK/WPA2-PSK
• Enclosure Material: Fire-retardant ABS V0
• Gang: 4
• Dimension:145*90*40 (mm)
• Operating Temperature(recommended): 0ºC-40ºC(32°F-104°F)
• Operating Humidity: 5%-90%RH, Non-condensing