The Vent-Axia 1.5A SPEED CONTROLLER 240V INDUSTRIAL only provides airflow only when it is required and at the level that it is required ensures that only the energy that is needed is used; no more no less.
The Speed controller has On/Off/sensor slider with neon indicator. There is an adjustable minimum speed setting. The controller is radio suppressed to BS EN 55014 and electrical connections for use with suitable external sensors are provided.
Dimensions: 86 x 156 x 53mm (HxWxD). For flush fitting a metal wall box accessory is available.
Hole for wall box: 80x150x150mm (HxWxD)