SOS-II

The Siren-Operated Sensor (SOS) is designed to respond swiftly to the "YELP" mode of all standard sirens in police and emergency vehicles. Since all gate operators use low voltage for their electronic controls, this source can easily be used to power the mini requirements of the SOS. A demonstration "Yelp" audio tape is provided, along with instructions, with each SOS sold.

Specifications:

 Frequency Response: 200 Hz to 10 KHz
 Alignment: SOS uses an onmidirectional microphone. Alignment is not necessary.
 Range: Adjustable - 5 to 50 feet or more.
 Enclosure: 3"x5"x2" rain-tight enclosure.
 Weight: Approximately 7 oz.
 Power: 9 to 30 Volts AC/DC with approximately a 2 mA draw.