Is there an alarm that will detect noises, not bodies. I know there is the glass detector but it is set to high frequencies.
I have four perimeter alarms that detect motion. Yes I know there is one available from Simplisafe but these were $14 each at Harbor Freight and I needed four of them. All of them make an audio warning sound. I would like to have something that would detect this alarm sound and transmit it as an open entry sensor alarm on the Simplisafe system.