... hour meter relay Supply Voltage:AC110V,220V/50Hz Dimension:48 x 48 x 40(mm) Timing range:0-99,999.99 Hours .... ... Main Technical ParameterHM-1Supply Voltage:AC110V,220V/50HzDimension:48 x 48 x 40(mm)Timing range:0-99,999.99 HoursNet ... Weight:50gHC3L,HC3L-ADimension:24 x 48 x 50(mm)Timing Range:999999.9H,99H59M59S,9999H59M,9999Day23H ... out putBattery Life:6 YearPanel Size:22.5 x 45(mm)