This video shows you how to create a siren for your home automation system for less than $20.
Parts Used:
Alarm Siren 5" 115 dB 12 VDC (Parts Express Part Number #260-060)
12V 3A DC Switching Power Supply AC Adapter with 2.1 x 5.5mm Center Positive Plug (Parts Express Part Number #129-180)
2.1 x 5.5mm DC Coaxial Power Jack to Screw Terminals (Parts Express Part Number #335-372)
