Features:_x000D_ _x000D_ SYS-1D type quartz electronic completely sealed timer, power on, power off stop, stop when no position, accumulative timing. _x000D_ This product has the advantages of novel structure, dexterity, high accuracy. _x000D_ Widely used, stable and reliable performance, long service life, convenient to use. _x000D_ 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. _x000D_ Can track and monitor accurate instruments and equipment to provide scientific basis for the assessment of maintenance cycle. _x000D_ _x000D_ Specification:_x000D_ Model: SYS-1D-R_x000D_ Timing range: 99999.9(hours)_x000D_ Timing accuracy: 0.01_x000D_ Reset device: with reset device (small white button at the back end)_x000D_ Voltage type: 100v-250vac_x000D_ Power: 0.3 W_x000D_ Temperature: - 10 -- 75_x000D_ Relative humidity: fully sealed_x000D_ Seismic amplitude: 10-70HZ 1-8g (heavy strength)_x000D_ Opening size: 38 x 28mm_x000D_ Battery: 620mAh CR2450 button battery(Built-in)_x000D_ _x000D_ Package List:_x000D_ 1 x Electronic Counter(Built-in battery)