Lighted Vertical Card Magnetic Compass, 12V, non-TSO, For Northern HemisphereThe Falcon Gauge Vertical Card dry compass eliminates leakage associated with fluid filled compasses. 2" vertical dial with miniature airplane outline presents the magnetic heading of the aircraft at all times. Heading information is more natural and easy to read, presentation shows complete 360º heading dial. It can be internally lighted. Non-TSO'd.