We recently moved into a house with an alarm installed , but told by previous owner it hasn't worked for years. We had an electrical safety test and initially failed and the alarm appeared to be the cause. I agreed to have the alarm removed from the mains and have my certificate now. No loss as alarm is not in use.
However about 4 hours later the external siren came on, probably for about 30 minutes continuously and then stopped. How long can the battery power the siren? I'm concerned it could sound again in the middle of the night.
I'm also a bit concerned the PIR sensors are still lighting up?
However about 4 hours later the external siren came on, probably for about 30 minutes continuously and then stopped. How long can the battery power the siren? I'm concerned it could sound again in the middle of the night.
I'm also a bit concerned the PIR sensors are still lighting up?
Last edited: