So I'm wanting to make an effective alarm system to include sirens placed throughout the house. I had looked at several all in one Z-wave siren such as the Aeotec Siren 6 but the reviews just don't sound that great in terms of volume and at $60 a pop it seems like you would need to add one to about every room to make it effective.
So then I thought about the idea of creating my own string of sirens throughout the house, tieing them to a Z-wave switch and then just creating a rule for their activation. Aside from the easy to use drivers of an all in one Z-Wave Siren, plus nice chirps for doors opening or the pre-arm/pre-trigger countdown chirps....what would I lose in a homemade system like this?
Ah ha, I'm not the only cheap one. I also bought a siren and used a flashed sonoff basic to turn it on when alarm is triggered. The siren is so loud, I chose to pulse it for 60 seconds, if the alert is not cancelled after 60 seconds,then it goes full bore until the system is disarmed. The whole time my other indoor battery sirens are blaring. My neighbors aren't crazy about my setup and have called the cops at least once.
correct, made a short extension cord with sonoff in the middle. when sonoff is on it supplies line power the 12volt/1amp power converter, which powers the siren