Description:

Case mounting type, 4.875 inches overall depth, 9.000 inches overall length, 8.750 inches overall width, 60.0 hertz frequency rating.

Special Features:

Internal flasher unit; two flashing red lights indicating compass failure, voltage in volts: 115.0. Material is metal.

Properties:

A signaling apparatus which operates electromagnetically and serves to indicate visually, or visually and audibly, whether a current is flowing, has flowed, or has changed direction of flow in one or more circuits. It is usually employed in connection with alarms, electric bells, or buzzers. See also alarm (as modified).