Airflow QT150VS Speed Controller for QuietAir Extractor Fans

Take complete control of your ventilation with the Airflow QT150VS Speed Controller. Designed specifically for use with QuietAir extractor fans, this variable speed controller allows you to adjust airflow precisely from 13 l/s up to 72 l/s using a simple rotary knob. This ensures your space receives the exact amount of ventilation required for optimal comfort and efficiency. The controller features a built-in minimum speed setting, adjustable between 1.3V and 6.7V DC, which provides continuous background ventilation and protects your fan hardware. For added convenience, the rotary knob also acts as a power switch to toggle between standby and active modes. With clear LED backlighting for status feedback and flexible mounting options, the QT150VS offers a reliable and user-friendly solution for managing your airflow.