I was looking at this from AO:
http://www.automatedoutlet.com/product.php?productid=868
Peizo buzzer w/ 20-30mA power draw...
The Elk KP2 has a programmable output rated at 50mA max.
Would it be possible to use this (105 dB will be plenty) with the keypad as the power source (don't want to cut and drill to run extra sets of lines for sirens downstairs).
4 to 5 of these (1/keypad) plus a siren (or two) in the attic should draw enough attention.
http://www.automatedoutlet.com/product.php?productid=868
Peizo buzzer w/ 20-30mA power draw...
The Elk KP2 has a programmable output rated at 50mA max.
Would it be possible to use this (105 dB will be plenty) with the keypad as the power source (don't want to cut and drill to run extra sets of lines for sirens downstairs).
4 to 5 of these (1/keypad) plus a siren (or two) in the attic should draw enough attention.