The Vent Axia 455873 is a wired controller for the T series range of commercial wall, window and panel extractor fans.
The three speed push button surface mounted controllers provide intake/extract and shutter only options and auto mode position for use with external sensors.
It is supplied with 10m of Safety Extra Low Voltage (12v SELV) 2-core signal cable and plug in connector which is wired into the fan.
The controller is also available as a wire-less unit - 455874. Please note that this may only be used with wireless T series models.