KERUI Home Security System Review: Wired SirenMy KERUI Home Security comes with the wired siren (see photo below). It interfaces to the alarm panel using a standard 3.5mm audio plug. ![]() When I plugged it in to test it for the first time, it chirped on arming. The chirp was so loud that it made my son and I deft for a split second. The chirp seemed louder than the fire alarms on our ceilings. Right now, our family is thinking that we don't need a siren that loud. The alarm panel has built-in alarm that seems sufficient for our purpose. So it remains disconnected for now. Related Links
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