The DS100 Door Sentry & Emergency Alarm System is an audible-visual emergency alarm system designed to monitor doors and windows. The DS100 can also monitor any device that uses open or closed contact switches, such as heat detectors, door/window magnetic switches, and momentary emergency push buttons.

The modular DS100 panels are constructed of extruded aluminum, and may be flush, surface mounted. They are available in configurations with from 4 to more than 100 lamp/button indicators.