HM-1 series quartz electronic hermetic timer has novel structure, dexterity, high precision, stable and performance, long service life, wide adaptability to environment, low and convenient use. It is most suitable for standard industrial timing, widely used in engineering machinery, engineering vehicles, agricultural machinery, generators, air compressors, pumps, driving, , various types of vehicles, etc. Accumulated actual working time charging and tracking monitoring precision equipment The assessment and maintenance provides a scientific basis. Features: Size: 7.2cm(2.83in) x 7.2cm(2.83in) x 4.1cm(1.61in) Timing range: 0~99999.99hours specifications: AC24V, AC110V, AC220V~240V, 50Hz/60Hz Timing accuracy: 0.01 Power: 0.3W Operating temperature: -10 C ~ 50 C Material: ABS colour: black Package Contents: 1 x HM-1 timer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.