Designed to complement HVAC systems, this fan efficiently boosts the airflow of your existing AC or heater, effectively redistributing warm and cold air for a more balanced temperature. The PWM-controlled motor with dual ball bearings ensures precise speed control, energy-efficiency, quiet operation and an extended lifespan. With a programmable LCD controller and high-precision temp probe sensor, this product automatically monitors temperature, and triggers fan to run at the cooling or heating temperatures you set, adjusting the fan speed accordingly. It can be easily mounted on wall or floor registers (not recommended for ceiling mounting). Its compact design allows it to take up minimal space while delivering optimal performance. Color: Black.