Just what a gun-crazy culture like America needs.
AVidea Bringing $150 Safe Zone Gunfire Detection System To CES 2019. (Twice, 12/4/2018)
Priced at $149, the system is said to combine IR and sound-detection technologies with machine learning, analyzing more than 3,000 data points of a loud noise exceeding ambient levels. The Wi-Fi-enabled 3-inch device mounts in a ceiling corner and provides gunfire detection for an area of up to 9,000 feet.
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