Curtains were open

Anything reflective opposite the detector that could have caused issue?

Last night at 2am I was wondering WFT an iwise went off 3 times in an empty stairwell,

 

z131 programmed off, rather than being here I should be there...

See, you just don't get all this with mirrored optics

2 hours ago, Nigel Collins said:

Curtains were open

Yep, similar to my initial post

1 hour ago, norman said:

Anything reflective opposite the detector that could have caused issue?

The shiny polished table?

1 hour ago, MrHappy said:

Last night at 2am I was wondering WFT an iwise went off 3 times in an empty stairwell,

 

z131 programmed off, rather than being here I should be there...

I don't really rate I-Wise, had weird environmental FA's with them, although many here don't agree.

Still your point is, sometimes your left with nothing to go on and have to replace anyway?

 

1 minute ago, sixwheeledbeast said:

I don't really rate I-Wise, had weird environmental FA's with them, although many here don't agree.

Still your point is, sometimes your left with nothing to go on and have to replace anyway?

 

their very, very stable to the point you hope the intruder has an accomplice....

Nothing reflective in the room - no mirrors etc

I'd go with swapping locations with the other and see if it follows the device.

25 minutes ago, MrHappy said:

 

their very, very stable to the point you hope the intruder has an accomplice....

lol

I would suggest with the dining room one if the activation was around sunrise that it's a good chance it'll have been a spider, as any time I've had activations around sun set - sun rise it's spider playtime