Shooter Detection Systems is committed to protecting our nation’s children and helping schools build safe, healthy and peaceful learning environments with the Guardian Indoor Active Shooter Detection System. Guardian is a system of smart sensors that detect gunfire in buildings and report that a shot has occurred within one second and with ZERO false alerts. Protecting K-12 schools across the nation today, this plug-and-play system is designed to work independently or integrate with your school’s existing technologies to provide School Resource Officers, local law enforcement, staff and students with immediate, actionable information to help make the best decisions when seconds matter most.