The Digital 5-Function Volt Meter puts a lot of useful information at your fingertips. It features a digital clock, thermometer, flashing black ice alert, stopwatch, and lap timer all in one very compact unit. Time can be set for 12 or 24 hour mode and temperature degrees in F or C. Records maximum and minimum temperatures. Backlit for night operation, current draw is only a few milliamps. Can be used on your motorcycle, in your car, hovercraft, spaceship, etc. Requires a direct connection to your battery or “hot” side of your fuse panel.