Amazon.com Product Description
The Precision Navigation V550 travel compass/clock is a powerful navigational tool that can also be used as a travel alarm clock. Just remove the clock from the brackets to use it as a travel alarm clock. The compass uses magnetic-sensor technology originally designed for the military. A trip timer and bearing mode further assist you in navigation. It features an easy-to-read display that shows the direction traveled with 16 cardinal points and 1-degree numeric digits.
No manual adjustments are needed for calibration: Just press a button and drive your vehicle in two circles. Calibration does not have to be repeated until batteries are removed or the compass is moved to a new location. The automatic shutoff turns the compass off when the vehicle is parked and no magnetic field is detected for ten minutes. Distortion detection warns you when magnetic interference from moving objects is compromising compass accuracy. You can choose between standard and military time. Mount the unit on the windshield with the included suction cups. The V550 operates on two AAA batteries (included) for over 200 hours of use.
