Hour meter - format 48 x 48 - AC or DC auxiliary power supply
Hour meter - format 55 x 55 - AC or DC auxiliary power supply
Hour meter - format 72 x 72 - AC or DC auxiliary power supply
DC voltmeter - Format 48 x 48 - Connection to shunt
DC voltmeter - Format 72 x 72 - Connection to shunt
DC voltmeter - Format 96 x 96 - Connection to shunt