Sonoff RFR2 features a 433MHz RF receiver module that enables users to control appliances indoors with an RF Remote(not included). It is a household switch which can support Wi-Fi communication with your smartphone. Users can control the connected appliances remotely via eWeLink mobile application.
Sonoff 4CH R3 is a 4-gang Wi-Fi Smart Switch with RF control designed to give you the ability to integrate smart control into your existing home. It has 4 gangs that can be used to control lights and other home appliances at the same time in four areas of your home.
Without changing its original smart features, the Sonoff BASICR2 made upgrades and optimizations mainly on its safety to provide a higher value and usage experience to our users.
Moisture and dust resistant, no potential safety hazard in harsh weather. BASICR2 is tested to work at the excessive humidity environment for up to 48 hours.