Feature: SYS-3 quartz electronic fully sealed timer with high accuracy, stable performance and reliability Fully sealed design, long service life, strong adaptability to the environment. Easy to use, suitable for standard industrial timing, widely used in construction machinery, agricultural machinery, generators, compressors, water pumps, traveling cranes, various types of cars and other accumulative actual working time charges and tracking monitoring At the same time, the product can provide data reference for the use and maintenance cycle of instruments and equipment. Power supply supports alternating or direct current, which is very convenient to use. Specification: Model: SY-3 Timing range: 99.9 (hours) Timing accuracy: ±0.01 reset device: No Voltage type: 10V-80V (AC/DC universal) Power: 0.3W Operating temperature: -10 ° C -50 ° C Relative humidity: fully sealed Package list: 1 * Hour meter Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product.