WiFi IoT Switch Sonoff 4CH Pro

Sonoff 4CH Pro R2 are 4 gang WiFi switches. They support switching among 3 working modes:

interlock/self-locking/inching mode. 4CH Pro R2 supports to set 1-16s. (4CH Pro just supports
to set 0.25-4s). This feature allows you to let your switch turn on for a few seconds then goes off,
which works like a pulse switch. They integrate with a 433MHz RF receiver module, making them
possible 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 the network is unavailable.
To let the devices be controlled by their family, users can simply share the devices with
their accounts and allow 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 (R2).
Standard voice control commands phrases (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”.
For detailed tutorial, please click here.

Features:
*App Support: Free iOS and for Android mobile App eWeLink.
*Sync Status: Real-time device status provided to App.
*Remote ON/OFF: Turn 4 electrical devices on/off remotely from anywhere.
*Independent control: Control each gang separately in APP eWeLink.
*Remote Control: Supports controlled by 433MHz RF Remote Controller.
*3 Working Modes: Supports switching among inching/interlock/self-locking modes.
*Timing: Supports 8 enabled countdown/single/repeat timing tasks to turn on/off at specified time.
*DIN Rail Mounted: Great for industrial control.
*Voice Control: Compatible perfectly with Amazon Alexa, for Google Home, for Google Nest.
*Share Control: Control your smart home together with your family.

Specifications:
Power Supply: 90V~250V AC/5-24V DC
Max. Load: 250V AC/30V DC
Max. Current: 10A/gang
Max. Power: 2200W/gang
Operating Temperature(recommended): 0ºC-40ºC
Operating Humidity: 5%-90%RH, Non-condensing
Transmission mode: Wi-Fi 2.4GHz communication
Wireless Standard: 802.11 b/g/n & 433MHz
Security Mechanism: WPA-PSK/WPA2-PSK
Enclosure Material: Fire-retardant ABS V0
Gang: 4
Product Size: 146*91*41 (mm)