BIOWIND Quiet Register Booster Fan, Smart Register Vent Fits 4" x 12" Register Holes with Remote Control and Thermostat Control, Heating Cooling AC Vent Fan - White

Brand: BIOWINDColor: White 4" x 12"Features: Quiet Register Booster Fan: A quiet fan system designed for improving wall and floor vents airflow from HVAC systems to increase home comfort. Eliminate Uneven Room Temperatures: Biowind smart register vent equipped with programmable LED controller and high-precision temp sensor to work with HVAC. It can automatically turn on/off vent fan to heat or cool the rooms at the right time. New Upgraded Remote Control: Remotely adjust the fan speed(0-10 level）to meet user different needs and make a perfect balance between noise and comfort. No need to get up, More convenient. Energy-Saving & Cost-Effective: This vent booster fans are more energy-efficient to traditional AC and cooling devices. They rely on airflow to improve indoor temperature and circulation, maximize the heating or cooling from your HVAC system with minimum energy. Besides, This smart register vent continues running after HVAC system off, pulling every bit of heat or cold air