Bathroom extractor fan activated off PIR???

[vala]

Hi all,

Looking to have my bathroom extractor fan turn on via a PIR instead of on with the light switch.

Main reason for this is the bathroom gets lots of light in during the day and if showering at that time there's no need for the light, and so an extractor fan wouldn't turn on.

I also have a fan isolator mounted above the bathroom door outside the bathroom.  

The extractor fan is this

https://www.extractorfanworld.co.uk/envirovent-silmv250100t-ultra-quiet-inline-fan--timer-4358-p.asp
 

And I was thinking of this

https://www.cef.co.uk/catalogue/products/204587-ceiling-flush-mounted-pir-occupancy-switch-white?gclid=EAIaIQobChMI5JqG55Cp9AIVEc53Ch3-jQP4EAQYBCABEgLbF_D_BwE&gclsrc=aw.ds
 

to trigger it.

Can anyone confirm if this would work?

[PeterW]

No issue with a PIR but you need to ensure the fan has an overrun timer or humidistat. 

[vala]

7 minutes ago, PeterW said:

No issue with a PIR but you need to ensure the fan has an overrun timer or humidistat. 

Hi @PeterW

Thanks for the reply. Yes just read through on the extractor fan web page and it notes it has an overrun timer.

Just double checked that PIR I linked to and it would appear they do a variant that is sealed so suited for bathrooms etc so will opt for that model.