Profile: Sentry Products, Inc. specializes in providing duress alarm systems to correctional facilities, juvenile detention centers, judicial centers, emergency medical facilities and schools. Our SCS is a very reliable emergency communication system that uses ultrasonic technology. Other commonly used names for this type of system include panic alarm system, personal alarm system, staff security system, ultrasonic duress system, man down system, emergency nurse call, employee security system, SCAN alarm system, and PAR. The SCS system consists of a small ultrasonic transmitter that is about the size of a pager and is carried around by staff members. In the case of an emergency, a small pin on the transmitter is pulled that sets off a silent signal to a hardwired receiver. This signal is sent to a central annuciator panel, which gives the exact location of the emergency situation so that help can be dispatched to that particular location. Video and audio can be linked and activated to come on when the receiver r is set off. This gives people at the control station the ability to monitor the situation to determine the urgency and response required.