In article
,
Tim+ wrote:
Be warned that the external sounder will probably have its own battery so
if you don‘t have the service code, removing the mains supply and the
backup battery will be treated as a ”tamper event• and trigger the sounder.
These things can very noisy for a *long* time.


On a 15 year old system, I doubt the backup battery in the bell box will
last for a long time.

--
*Middle age is when work is a lot less fun - and fun a lot more work.

Dave Plowman London SW
To e-mail, change noise into sound.