4-Gang Wi-Fi Smart Switch With RF Control Information:
The difference between 4CHR3 and 4CHPROR3 is that the pro is designed with an additional function for RF control.
Sonoff 4CHPROR3 is a 4-gang Wi-Fi Smart Switch designed to give you the ability to integrate smart control into your existing home to enable a smart home.
Each smart switch has 4 gangs that can be used to control lights and other home appliances at the same time in four areas of your home.
The function is purposely adopted to make you turn on/off the device connected with 4CHPROR3 via the RM443 Remote controller (sold separately).
The new improvement on 4CHR3 and 4CHPROR3 compared with 4CHPR2 and 4CHPROR2 is for users to set these 3 working modes on eWeLink APP instead of the hardware itself, its easier to operate.
You can enable self-locking mode to turn on/off 4 connected devices separately, interlock mode to turn on 1 connected device every time and turn off the rest of devices simultaneously and inching mode to turn on 1 connected device and then make it turn off automatically after a given time (0.5 – 3600s).
You can move the DIN rail.
Simply activate devices through your voice when the switch works with Alexa and Google Home smart assistant.
x1 4CHR-PRO-R3 with instructions and certification