Barracuda Intruder Defense System Model DSI for Inward Swinging Doors Discontinued Supplies not included SNS Exclusive Supplies not included the Omron IntelliSense Professional Digital Blood Pressure Monitor is designed for clinical use in a professional setting including a nurse’s office The Barracuda Intruder Defense System is helping keep classrooms and public buildings safe in the event of an active shooter situation it is a security device that can be installed in a matter of seconds in emergency situations to protect occupants against intruders Pushing outward on the handles engages the plates to the exterior door jamb and the device is securely locked in place by simply inserting a pin