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School Sensor Can Alert Authorities, Lock Doors When Gunfire Is Heard
The bullet sound detection system is being developed by a missile engineer and is being tested at an elementary school in New Mexico.
Read more on NPR
School Sensor Can Alert Authorities, Lock Doors When Gunfire Is Heard
The bullet sound detection system is being developed by a missile engineer and is being tested at an elementary school in New Mexico.
Read more on NPR
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