Hours Run Counter (BZ142-1),hour meter,time counter AC Ratings: AC 24V, 48V, 110V or 240V Frequency: 50Hz or 60Hz DC Hours Run Counter (BZ142-1),hour meter,time counterAC Ratings: AC 24V, 48V, 110V or 240VFrequency: 50Hz or 60Hz DC models also availableRange: Seven digits up to 99999.99 hrsDimensions: 48 x 48 x 40mmTerminals: Connections to terminal block.