The Sentinel D‑Box Twin Fan 100mm (Stock Ref: SENT100T) is a high-performance demand ventilation solution for commercial settings. It supports duct sizes ranging from 100mm to 500mm, delivering airflow from 0.001 to 1.3 m³/s and pressures up to 650 Pa. Featuring the latest energy-saving EC/DC motors and a lockable isolator, it ensures efficient operation and simple maintenance. The robust Aluzinc construction allows installation indoors or outdoors. Manufactured in accordance with BS EN ISO 9001 and performance-tested to BS848 Part 1 & 2, this fan provides reliable, energy-efficient ventilation for a variety of commercial applications.