ADC-1
Auto Dialer for Alarms & Control Panels
Auto Dialer for Alarms and Control Panels can sequentially dial up to 4 telephone numbers; delivers up to a 16 second message you can record; 9-12 volt DC operation.
Requires auxilliary contacts on primary alarm or panel.
  
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ADC-1 Auto Dialer
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See Sales literature PDF for various model configurations.
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