Mr. Zwirn has been involved in the security survey, need analysis, system recommendations, sales, design, installation, programming, testing, inspection, service, maintenance, and monitoring of more than five (5,000) thousand security and life safety systems for residential, commercial, industrial and governmental applications. At last, a book about an important subject that the nontechnical among us can read and understand. Although those of us in the safety and security professions are fully aware of the importance of intrusion detection systems and fire alarms, rarely can we find a book on the subject that is both highly informative and yet very readable, or ‘user friendly'.

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https:// www.northjersey. com/story/news/ bergen/tenafly/ 2018/09/24/ tenafly-nj-polic e-search-home-i nvasion-suspect s/1417910002/

Posted on Sep 25, 2018  •  Facebook

How to Get the Most Out of Your Alarm System’s Glass Break Detection! Check out my article for securitysales.c om!

Posted on Sep 16, 2016  •  Facebook

Visit http:// jeffreyzwirn.net / for more on alarm and security science!

Posted on Sep 16, 2016  •  Facebook

Listen to SecuritySales.c om Best of Security Speaking podcast interview with our alarm industry expert witness Jeffrey Zwirn!

Posted on Mar 03, 2016  •  Facebook

Find Jeffrey Zwirn on California's Expert Witness List Jeff Zwirn has provided expert witness, fraud investigation & consultation services across the country in hundreds of alarm related cases & claims.

Posted on Mar 01, 2016  •  Facebook

Another great case study: http://t.co/efHXcmQNX4

Posted on Oct 12, 2015  •  Twitter

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