Smart Kit to Improve HVAC Airflow to Finished Attics

The user describes their issue: an attic that's nearly impossible to keep at a comfortable temperature because it only has one vent. This is a classic HVAC zoning problem. The solution could be a "Smart Attic Climate Control Kit." This product would include an in-line duct booster fan, a smart controller, and a wireless room temperature sensor. The system would activate the booster fan only when the main HVAC is running and the attic's temperature strays significantly from the setpoint, effectively pushing more conditioned air into the space. It's a more efficient and effective solution than just a booster fan and much more affordable than installing a dedicated mini-split system.