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> Sos siren operated sensor for gate / entry automation
Sos siren operated sensor for gate / entry automation
Taken from a working entry system with about 1 year in use. Unit has been tested and works perfectlly. Unit retails new for over $350.
The SOS-YDT version stands for YELP/DECIBEL/TIME. It's programmed to respond to emergency vehicle sirens' "YELP" and open the gate in 2.5 seconds. If the emergency responder is not using the "YELP", yet the decibel level remains high for an additional 2 seconds, the YDT will trigger the gate to open. This version will therefore respond to the "wail" or any consistent sound producing 4.5 seconds of high decibel. The SOS-YDT is proximity adjustable, and has switch able safety options built into the circuit board.
The SOS will open gates to emergency vehicles with the yelp signal. It has a convenient sensitivity feature that allows you to change the sensitivity based on the distance on the gate to the road. So that a emergency vehicle driving down the road doesn't accidentally open the gate. This emergency gate access sytem allows you to sleep safe wit
Fire/Police/EMS/911 responders, open gates with Siren's "Yelp" in 2.5 seconds (all sirens in 4.5), hands free No codes to remember or keys to lose. A reminder decal on the gate tells responder to hold siren on for swift entry.
The Siren-Operated Sensor (SOS) is designed to respond swiftly to the "YELP" mode of all standard sirens. A reminder decal is provided to be placed on each entry gate. Responders already own their siren. This device represents Public Safety without spending Public Funds. At this writing (2001), the SOS is the nation's most widely used Uniform Emergency Gate Access.
Since all gate operators use 12 to 24 Volts AC or DC 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.
The Frequency response of the Siren-Operated Sensor is from 200 Hz to 10 KHz. The SOS relies on a time-varying frequency input in this range. This, plus proprietary techniques, allows the microprocessor to respond to the siren's "YELP" with a dry relay closure in 2.5 seconds.
The SOS uses an omnidirectional microphone. Alignment is not necessary.
Range of the SOS is adjustable - 5 to 50 feet or more. A potentiometer located on the PC board provides this adjustability. The SOS is not affected by ambient light.
The PC board is mounted in a 3.2" x 6.5" x 3.2" rain-tight enclosure.
Weight is approximately 10 ounces.
The power requirements are 12/24 Volts AC/DC with approximately 2.5 mA draw. Momentary relay activation or switchable to a 10-minute hold.
