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11 Holiday Gift Ideas For Security Techs

“The Alarm Science Manual”

As I’ve stated before, valuable trade tools come in many shapes. That includes the trade book “The Alarm Science Manual” by Jeffrey Zwirn, an SSI columnist. The book can be enjoyed by both technical and nontechnical readers, who can glean many valuable takeaways. The many examples of installation, service and operations wrongdoings are supported by stories of legal cases in which Zwirn served as a security industry expert witness. — Dolph

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