James Biersach Shows off the first CompuLert
Posted: Tue Apr 26, 2016 12:20 am
James Biersach stands next to his new line of radio activated computer monitored siren controllers. ACA sold this first system of controllers or Milwaukee County WI. An article I found with is photo also stated at the time of this photo was taken they just landed a $million contract to install a Waring system similar to Milwaukee's in Washington DC. In the photo he demonstrates the Central control system.
Photo credit to HistoicImages.
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