Get futuristic with your grow! The Sonoff Smart switch with humidity and temperature sensor allows you to connect your grow space to an app on your phone. You can simply monitor your temperatures and humidity from the comfort of your couch with your phone or you can take it a step further and set the switch up so that it controls your grow space. The smart switch allows you to also connect other equipment to it. This allows you to program the device so that certain equipment turns on and off when the temperature or humidity reaches specific levels. For example, when your humidity gets too high your extractor fan will automatically turn on.