Hi all
>
> A couple of years ago I had a number of false alarms from an entrance hall > passive.
> On group recommendation, I replaced this with a dual-tech version.
> This morning, at 03:53 :( the same passive caused a false alarm.
Lightning? That's what was going on round here at that time (and still is).
So the question is:
> How good are these d-t passives? Are they still suceptible to false alarms
> or does this indicated a failing panel?
What type is it? I have had trouble with the anti-masking protection on Focus Dual-Tech's and changed most of them out. It actually generates a tamper alarm in that particular model, but it depends on the model, how you have them connected up and on the panel, just how that presents.