Arco A 125 & Arco A 150
An external switch such as a light switch is used to switch the fan on and off via a switched live.
Arco A 125C & Arco A 150C
The fan is turned on and off with an integral pull cord.
Arco A 125T & Arco 150T
An external switch such a light switch is used to switch the fan on and off. An integral over-run timer which will keep the fan running for a set amount of time after the external switch has been turned off.
Arco A 125 HTC & Arco A 150 HTC
The fan is built with an integral timer and a humidistat. The fan can be switched via an external switch or the integral humidistat, which will trigger the fan once the relative humidity level exceeds a selectable threshold.