ITEM NAME:Mechanical Hour Meter Gauge - Engine Hourmeter (DC 6-80V) for Boat /Auto /ATV Waterproof and easy-to-read hour meter features with novel design, high accuracy and steady performance. for standard industrial timing and supplying data for the reference of maintenance duration for precision equipments. Specifications: Reading 99999.9 hours Accuracy  ±0.01, Quartz Voltage Supply 6 to 80 Volts DC Temperature Range -10℃--50℃ Power Consumption 0.3 Watts Outside Diameter 2.3 inch Depth Behind the Panel 1.7 inch (plugs included) Hole Size 2 inch Package Includes: 1 x hour meter SKU: DMO0009566614002142.Power Consumption 0.3 Watts. Reading 99999.9 hours. Temperature Range -10℃--50℃.