Ada 121 Audio Visual Alert System

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The ADA 121 Audio Visual Alert System is a flashing light and enhanced audible doorbell signal.This modular device enables people with visual and/or hearing impairments to be made aware of incoming telephone calls and/or when visitors to their residence are outside their front door and ringing the doorbell. Resident awareness is stimulated via a very loud piezoelectric buzzer and a flashing
strobe light. The length of the sound emitted and the strobe flashing may be adjusted from 1 to 60 seconds and can be reset anytime in between. The system is designed to work with existing residential or building access control systems including: doorbell, intercom, telephone entry, and emergency call systems; as well as the standard telephone system (POTS). Pressing the ON/OFF button on the vandal-resistant unit once turns on the unit and power LED and pressing it again turns off the unit. When activated, the unit will sound a 90 decibel (dbA) piezoelectric buzzer and illuminate a 110-candela flashing strobe light. Pressing the RESET button will stop the buzzer and strobe and reset the system for the next alarm. Activation is accomplished by pushing the residence’s doorbell, or depressing the appropriate residence intercom button, a telephone entry system, or by dialing the residence telephone number from a standard telephone system. Each time the residence is contacted the buzzer will sound and the flashing strobe light will illuminate, notifying the resident that someone is trying to contact them. Up to five ADA 121 remote units may be used together in a single system. The ADA-121 is designed to be mounted surface or flush using a 3-gang old or new work box (flush mount), or a 3-gang Wiremold box (surface mount). POWER: Uses either 12-24-volt direct current (DC) wall-mounted plug-in transformer or is 24-volt alternating current (AC) hardwired.

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as of: 
10/11/2011
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Ada 121 Audio Visual Alert System

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