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FM Systems SSA474 Sonic Sentry Alarm



FM Systems SSA474 Sonic Sentry Alarm


 

Our Price : $510.00


Product Code: FMSSSA474

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Description Specifications
 
The SSA474 SONIC SENTRY ALARM is a four channel audio detection system used to detect the sound caused by movement of any person or object in the monitored area. All movement or contact with surfaces produce sound waves in the air that are received by a local microphone in the monitored area and sent to the SONIC SENTRY ALARM unit by wire.
 
Many video cameras have built in microphones that can be used to provide a higher level of security with this unit. The unit electronically listens to the audio signal and determines when to close an alarm contact. This alarm contact is Normally Open or Normally Closed and can be used to alert local monitor personnel or activate other alarm equipment. Connect it to a multiplexer and switch the video source to a higher scan rate when an alarm is being received from that area. This will improve picture motion quality on that camera when action is occurring.
 
A built in audio gain control keeps ambient audio below alarm detection level while maximizing the sensitivity of the alarm trigger level. This allows the system to have maximum sensitivity and operate in relatively noisy environments. Equipment such as air conditioners, fans, and heaters operating in the monitored area will not trigger the alarm. Slowly changing sounds such as aircraft flying over the building or cars driving by the outside of the building can be ignored by the alarm while still having a very sensitive trigger to sounds inside the monitor area.
 
The Sonic Sentry Alarm uses audio to detect motion without violating the privacy of any person in the monitor area since no one is listening to or recording the audio. This provides Protection without Intrusion of Privacy. If monitoring or recording of the audio is desired, the audio signal is available at the rear RCA connectors. There is an RCA connector for each of the four audio channels and one RCA connector that is switched to any channel that is in alarm at the time. This is used when only a single channel of audio may be recorded.
 
Audio will only be recorded if an audio patch cable is connected between the SSA474 and the audio input of the recorder. The audio detect sensitivity is adjustable from the front panel. Adjust the sensitivity control during normal sound level in the monitor area until the alarm LED goes out and that's it, the unit is ready to detect unwanted intrusions.

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