electronic tamper-proof operating hours counter for all types of machines and devices ideal for shared and rental machines activation by movement/vibration of the machine separate totalization of working time possible by changing the position of the counter hour display optionally in h:mm or h,hh, setting option for the intensity of movement required to activate the counting process large, permanently switched on LCD display with six-digit display and 11 mm high digits robust, one-piece plastic housing with protection class IP69k (resistant to high-pressure cleaners) powered by 2 AAA batteries supplied dimensions: 93x52x33 mm (WxDxH) scope of delivery: operating hours counter, 5 lead seals, handbook 5-year warranty