Features: HM-1 series quartz electronic hermetic timer has novel structure, dexterity, high precision, stable and reliable performance, long service life, wide adaptability to environment, low price 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 cycle provides a scientific basis. Specification: Timing range: 0~99999.99hours Voltage specifications: AC220V~240V, 50Hz7 Timing accuracy: 0.01 Power: 0.3W Operating temperature: -10 C ~ 50 C Relative humidity: fully sealed size: 72 x 72 x 40mm Material: ABS colour: white 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.