PRODUCT SPECIFICATION: Brand : CAMSCO Model : HM-1 Description : Hour Meter Display : LCD Display Operating Voltage : AC 220-240V Ferquency : 50HZ Time Range : 0-99,999.99 h Dimension : 72x72x36mm Net Weight : 50g Mounting : Insert Type Certificate : CE APPLICATION: This hour is mechanical type.Widely applied in each Kind of machine,equipment and device(such as environmental protection equipment generator etc).Used for to demonstrate the machine,the equipment,the device accumulation operating time.It is mechanical type accumulation,the longest time for accumulation time can be 11years.It still can maintain the data after power cut.