Shower fan/light sensor

[Kevin Martin]

Morning all, I am working on a bathroom at the moment and the client has asked if the shower fan/light unit can be wired into a sensor instead of a pullcord switch (to activate fan when someone steps into the shower), I wondered if anyone has done any work like this before ?.

Apart from sourcing an IP rated sensor I am wondering how to get over the problem of the sensor being activated from someone using the bathroom other than the shower. its a shower fitted over the bath, wouldn't need it to come on when someone is bathing.
Tricky one for you.........

Regards
Kevin

 

[buzzlightyear]

Would be better with switch then a sensor one .

 

[Charlie_]

I’ve used pir to control lights and fan separately..
Also humidity sensor is probably a better option

 

[Kevin Martin]

Thank you Charlie, the fan is a light/extract combi unit, I like the idea of a humidity sensor but that would not be practical as the light would need to be on all the time someone is in the shower, if it was a separate fan & light then that would be ideal.

 

[Spoon]

Would also use a current sensing switch for the shower circuit, that brings on the items you want. Then if they are in the bath nothing will happen.
Way over the top, instead of using the original pull cord, but if they are willing to pay then so be it..

 

[Charlie_]

You can easily separate the fan and light from each other