Clipper Speed Log Instrument w/Transducer & CoverIf you are looking for cockpit instruments that feature cutting edge technology yet are intuitively simple to operate, look no further. The outstanding Clipper range of instruments incorporate technically advanced electronics in an industry standard 110mm square case. Ease of use and display clarity were top of the design brief. All Clipper instruments have giant digits and multilevel backlighting. As with all Nasa instruments they are excellent value