Sonoff RF switch is a Sonoff version with a 433MHz RF receiver module inside. This wireless switch can be used together with the RF remote controller, which enables you to control appliances in indoor environment. The remote control switch allows users remote turn on/off connected appliances via app EWeLink from anywhere in the world.
Sonoff IP66 is a high-quality waterproof case that can be used with Sonoff RF in the underwater environment. The waterproof level of the waterproof box is IP66. It allows you to remote control your lights or home appliances outdoor.