MRCOOL MTSK02 IR Bluetooth MiniStat Thermostat is a compact electronic temperature controller designed to provide precise control of compatible ductless HVAC systems. It works by sensing indoor temperature and communicating control signals to the mini-split system, allowing the equipment to adjust heating or cooling to maintain the selected temperature. Designed for use with compatibl... https://www.partshnc.com/mrcool-ministat-ir-bluetooth-thermostat-mtsk02