Feature: 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, cranes, 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 100% new and high quality Color: black Material: plastic Size: 7.2cm(2.83in) 7.2cm(2.83in) 4.1cm(1.61in) Timing range: 0~99999.99hours Voltage specifications: AC220V~240V, 50Hz Timing accuracy: 0.01 Power: 0.3W Operating temperature: -10 C ~ 50 C Relative humidity: fully sealed Package include :1 x Timer Note: Please be aware that due to your computer monitor display the color may have some difference between the picture and the real item. There is 2-3% difference according to manual measurement.