A mini split AC controller is a device that allows you to control the temperature and other settings of your mini split air conditioner. It is typically a wall-mounted unit that has a digital display and a series of buttons or knobs that allow you to adjust the temperature, fan speed, and other settings. The controller is connected to the mini split AC unit through a series of wires, and it is the main way that you can control the temperature of your mini split AC. The controller also has the ability to set timers, so you can program the AC to turn on and off at certain times. Additionally, some controllers have Wi-Fi capabilities, allowing you to control the temperature of your mini split AC from your smartphone or other mobile device. With a mini split AC controller, you can easily and conveniently adjust the temperature of your mini split AC to your desired level, making it a great way to stay comfortable in your home.