Hi,

I have put up an external light and a standard switch. I've bought a
PIR and want to wire it up so that either the PIR or the standard
switch can switch the light on.

The PIR wires are Brown Blue and Red, but I am not sure how to wire
this in. The wiring diagram states the following:

Brown - to Input
Blue (N) - to nothing
Red (O) - connecting with load

Any help would be gratefully recieved!

Tom