RSM-3-A is a series RSM room status monitor designed for critical low differential pressure applications that require stringent pressure monitoring and alarming. The series RSM can be configured to monitor positive or negative pressure in protected environments and hospital isolation rooms per CDC guidelines. The RSM is a complete system with a graphic user interface that enables access to pressure, security, calibration, and alarm setup. The RSM has a NEMA 1 (IP20) rated fire retardant plastic for indoor applications. Typical applications include hospital isolation wards, clean rooms, pharmaceutical, manufacturing, research labs and animal facilities.