ADT Montreal

Alarm Systems
5700 Henri-Bourassa Blvd W. Montréal QC H4R 0B8
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More about ADT Montreal

Our story For over 125 years, we’ve made protecting and connecting the centerpiece of what we do. 1874-1890: First security system network It all started on April 5, 1874, with a nighttime break-in. American District Telegraph (ADT) founder Edward Callahan created a telegraph-based “call box” to signal for assistance to ...
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