A couple of years ago I had a number of false alarms from an entrance hall
On group recommendation, I replaced this with a dual-tech version.
This morning, at 03:53 :( the same passive caused a false alarm.
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?
Lightning? That's what was going on round here at that time (and
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
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