Fortrezz SSA-01 Siren / Strobe Z-Wave Alarm Module Clear Lens

I purchased this for use in my Nexia system. I was able to enroll the device with no problems. It shows up as a dimmer.A few observations:The siren is loud enough to startle intruders. There is no way that this won't be heard while inside. I have mine located in the center of the house, which might not be heard too well from outside the house.In my testing, I noticed that the clear plastic cover doesn't quite snap in place fully. When triggering the siren, that cover almost always pops out--but that doesn't bother me too much. A piece of tape would fix that.When the power goes out, or the device is unplugged (the battery is only meant to be a backup... you need to plug this into a power source) the alarm will sound for a few seconds. I have mine plugged into a larger battery backup (UPS) so I saw this as a bonus... essentially I'll get a (very loud) audible alarm when my UPS battery runs out.It works beautifully with the Nexia system. I set up automation so that when my motion sensors detect motion, set this "dimmer" to 100%. This produces a flashing light and audible alarm.I noticed that if I set the "dimmer" to 1%, only the light will flash--no audible alarm.

This things is loud and works like itsome supposed to. Only reason for 4 stars is, it didn't come with any screws or mounting tape.