... Cost Hour meter, counter HM-1 Hour Meter, Digital CountersSpecifications1.HM-1 2.HM-1 HOUR METER 3.HM-1 Digital Counter 4.VOLTAGE ... AC24-250V 5.Time range: 099.999.99h HM-1 This hour meter is mechanical type.Widely applied in ... still can maintain the data after the power cut.ItemNo.HM-1Operating VoltageAC 24-450VFerquency50HzTime Range0-99,999.99hDimension48 x 48 ...