1、This product has the advantages of novel structure, dexterity, high accuracy. 2、The time display range is 8 digits, 1 minute -999999 hours 59 minutes. 3、Widely used, stable and reliable performance, long service life, convenient to use. 4、Applicable to standard industrial timing, widely used in construction machinery, engineering vehicles, agricultural machinery, generators, air compressors, pumps, traffic, cranes, various types of vehicles and other cumulative actual working time charges 5、Can track and monitor precision instruments and equipment to provide scientific basis for the assessment of maintenance cycle. Features: This product has the advantages of novel structure, dexterity, high accuracy. The time display range is 8 digits, 1 minute -999999 hours 59 minutes. Widely used, stable and reliable performance, long service life, convenient to use. Applicable to standard industrial timing, widely used in construction machinery, engineering vehicles, agricultural machinery, generators, air compressors, pumps, traffic, cranes, various types of vehicles and other cumulative actual working time charges. Can track and monitor precision instruments and equipment to provide scientific basis for the assessment of maintenance cycle. Specification: Model: HM - 1D Time range: 8-digit 1 minute -999999 hours 59 minutes Power supply voltage: AC220-240V 50Hz Reset device: no reset zero Timing accuracy: ± 0.01 Power: 0.3 W Ambient temperature: -10-50℃ Relative humidity: 35-85%RH Installation mode: guide rail type Protection level: IP20 Package List: 1 x Time Counter