Review on 🌀 AC Infinity Controller 67: Smart Bluetooth Fan Controller for CLOUDLINE Airlift Whole House Fans – Temperature, Humidity, and Timer Controls for Optimal Cooling and Ventilation by Sally Willyard

Probably works great but is not compatible with my Cloudline S4 fan bought less than a year ago. Will not work with fans that have a power supply connected to the ESC. There should be two wires coming off the fan. A cable (flat 4-pin) that goes to the controller and a power cable that goes to the wall. With my S4 only one cable comes out of the fan. It connects to the speed controller. But the power supply/cable is also connected to the speed controller, so it doesn't work with my fan. There may be newer versions of the S4 that are different, but this has not been made clear in the description. Just because it's a fan of the Cloudline series doesn't mean it's guaranteed to be compatible.