This is a brand new and high quality digital hour meter counter. It tracks the service life of vehicles, including oil changes, valve adjustments, and spark plugs. The device is easy to install, peel and stick, and does not require a battery. It works on any gas engine and can record and display up to 9,999.9 hours. The hour glass symbol appears and flashes on/off to indicate counting time, and it has automatic roll over. The device is 100% epoxy encapsulated, resisting water, shock, and fire up to 85°C. It comes in a black, blue, or red optional color and includes an original box, wire, and screws.