"alan_m" wrote in message
...
On 27/01/2020 07:23, Tim+ wrote:

These things can very noisy for a *long* time.


It depends on what has been programmed for the the alarm on time. I
reprogrammed mine from the default 15 minutes to 5 minutes so if the alarm
did go off the "bell" would only sound for 5 minutes. Very few people
these days take any notice of an alarm (apart from being annoyed by it) so
any longer than 5 minutes is a nuisance and if there are people in the
house then hopefully the alarm going off would persuade them to move on.

Dunno on that last. If most ignore alarms going off, no
need to leave when the alarm goes off, just keep on looting.