Anchor Alarm monitors equipment malfunction and failure, liquid level changes, temperature changes or other conditions which are triggered by an electrical pilot duty contact. The units are housed in a hinged, corrosion resistant, Noryl box for indoor (Series 1000-1), or outdoor use (Series 1000-4). An audible alarm is provided, along with a Test/Silence Switch. A light is mounted to the panel door and remains lit for as long as an alarm condition persists. The relay, buzzer, and terminal strip mount to a printed circuit board, to which the power and electrical pilot duty device are wired. Mounting ears are provided, as well as two tapped entrance holes and their appropriate liquid tight connectors.