Airflow QuietAir With Motion Sensor - QT100MST duct_length_greater_than_3m The Select AX100PC is a

The Select AX100PC is a basic single speed axial fan with anti-backdraught shutters and built in guide vanes to improve airflow

Also know as P/N 441774

100mm surface mounted centrifugal fan suitable for duct runs up to 10m long and comes with integral back draught shutter

The RF90TW is a single speed

Airflow QuietAir With Motion Sensor - QT100MST duct_length_greater_than_3m The Select AX100PC is aThis QuietAir Motion Sensor Timer Fan carries the Quiet Mark Approval and is part of an extended range of elegant, discreet axial fans that are extremely quiet with various control options that activate the fan only when needed the choices are: remote switching, timer, humidity with timer and motion sensor with timer. This Motion Sensor Timer model has two ways of being activated, it is activated by movement and it can also be connected to a switch