Product Specification OOTDTI Condition: New Color: Black Material: Plastic and Metal Voltage: for Dc 10V-80V Power: 0.3W Use Temperature: -10&deg -50&deg Size: Approx. 7.5*6*3.2cm Item Included: 1 x Hour Meter Suitable for: Time Tracking on machinery such as boats, trucks, tractors or other equipment where timely is used to determine oil change intervals, service requirements or where operating hours need to be recorded Note: Item without "auto to zero" function ♦ Product DescriptionFeature: 1) the meter has positive and negative leads for easy installation. 2) the timer has a 6 digit display with the least significant digit of 1/10 hour (99999.9) and operates on 10-80 dc input voltages. 3) the timing gear hour counter includes crystal oscillator that provides a high degree of accuracy.