Abstract: An alarm monitoring system which simultaneously provides a bright alarm light and audible alarm upon the occurrence of an abnormal condition in a function being monitored. The alarm light is reduced to a dim illumination upon acknowledging of the alarm condition by the operator and the audible alarm is also deactivated. The dimmed alarm indication reduces detrimental effect of night vision while maintaining notice of an abnormal condition. Upon acknowledging the alarm condition, an electro-mechanical relay having two normally closed contacts and one normally opened contact is energized to redirect current flow to the alarm indicator lamp through a resistor and cause the dimmed illumination of the indicator lamp. A plurality of alarm indicator circuits are connected in parallel and have diodes connected in the circuitry to prevent electrical feedback in the system from causing false alarm indications in the corresponding alarm circuits.