SimpliSafe 105dB Auxiliary Siren - Compatible with Gen 3 Home Security System

I have 6 of these sirens. Three inside and three outside of my home. Sufficient, I believe. One of them just died for no apparent reason after three years. So I will be replacing it immediately. When operating a Simplisafe system in a very large home, there are challenges in terms of all sensors reaching the base station. It will require some effort and take some time to get it right, or else you'll be getting some false alarms or non-connection alarms at inconvenient times. Overall we have been very satisfied with our system. The sirens are quite loud, which is a good thing.

Good and loud, some have short battery life and connectivity issues, other last over a year on 1 battery.

Very loud have it mounted outside so my neighbors can hear when my simplisafe alarm goes off

One of my main concerns with Simplisafe was the potential for smash and crash. You can look it up on the internet, it is a big concern with alarm systems. The thief finds the base station during the entry delay or shortly after the alarm goes off and smashed it before notification can be sent out. Even though alarm sirens are loud, usually it is only inside the house and is unlikely to draw attention with the doors and windows closed.I added two of these sirens and hid the base station. One siren is outdoors and the other is indoors. When the alarm goes off, the base station and both of the sirens will be sounding loudly. It would be hard to pinpoint the location of the basestation with multiple sirens sounding earpiercing noise. The external siren will attract attention to the house and no thief would want to stick around.I paired the sirens, cleaned the mounting surface with alcohol, and the siren mounted securely.

The Simplisafe support page says how to test this:=========- Place System Into Test Mode- ... press the button on the top of the Extra Siren. You’ll hear the Base Station announce, “Siren” to confirm the test was successful.NOTE: The Extra Siren will also emit a loud beep during this test. Please be sure to protect your ears, as the Extra Siren is equipped with a 105dB siren.=========To me, that implies that the siren will beep as loud as the siren alert sound. But it doesn't.To actually test the siren's alarm sound, I had to call their customer support people who armed the system in practice mode and then had me trigger an alarm. Then the siren sounded fully (and very loudly).

Loud! Easy connect!

Loud! Easy to connect to system and a no brainer for your home.

Works As it should And Is of course 100 compatible