MIL-V-85603, MILITARY SPECIFICATION: VOLTMETER, DC, AIRCRAFT, DIGITAL DISPLAY GENERAL SPECIFICATION FOR (10 AUG 1989)

MIL-V-85603, MILITARY SPECIFICATION: VOLTMETER, DC, AIRCRAFT, DIGITAL DISPLAY GENERAL SPECIFICATION FOR (10 AUG 1989)., This specification establishes the requirements for the design, performance, manufacture, and acceptance of voltmeters for indicating the available capacity of storage batteries in aircraft and providing a warning signal when the available capacity becomes dangerously low.