"This RF Remote can learn with other 433MHz RF devices, such as Sonoff Slampher, Sonoff RF, Sonoff 4CH Pro, Protium Smart Touch Switch."
Remote ON/OFF–Turn lights on/off from anywhere in your home, Not Required any wiring connection (Required RF switch to install)
Take Your light switch with you (use it additional switch on stairs, bedside switch,)
"Protium 433MHz wireless RF Remote control transmitter, which you can keep it on table, hang near star case or in another room to control the light connected through Sonoff/Protium RF switches.
home to an elegant smart home, control anywhere, anytime!"
"Upgrade your home to an elegant smart home, control anywhere, anytime!"