Davis Instruments Hand Bearing Compass - Illuminated. This Davis Instruments Hand Bearing Compass w/ Backlight allows you to quickly obtain a magnetic bearing on shore or floating objects. Obtain a bearing simply by aligning front and rear sights on an object and reading off bearing. This Davis Instruments Hand Bearing Compass w/ Rear Sights is perfect for uses that include quick bearing or position set determination of angular gain or loss on the competition while racing checking distance offshore establishing lee-bow set while cruising or racing in currents drift vectoring and plotting a line of position. Compass. Specifications for Davis Instruments Hand Bearing Compass: Manufacturer: Davis Instruments Color: Black Features of Davis Instruments Hand Bearing Compass Backlight: Yes Package Contents: Davis Instruments Hand Bearing Compass Davis Instruments 215: Hand Bearing Compass - Illuminated