pyronix deltabell

Hi all I have a strange issue, I changed the battery's (BATT-ES1) in my siren a couple months ago and after about a week, the alarm started to show the warning, Siren Wireles Low Batt. I asked the supplier to send me some new batteries, which they kindly did and I installed them and again the...

Hi, I'm looking for some help on this system if anyone can please. My friend just moved into a 5 year old property and this system was already installed . He has no manuals, just the user code. When the alarm is set off, the keypad sounds, the strobe flashes but the siren does not sound. I...