The QuietCool Smart Control is the new way to control your QuietCool products. - Control the speed of your attic fan - Control the length of time to run your attic fan - View the Temperature and Humidity level inside your attic - Enable Smart Mode for automatic speed changes based on attic temperatures - Add presets to your app for easy control of your attic fan Please note, this will only work if you have an attic fan with a QuietCool Smart Control installed on your QuietCool fan.