Breathe life into your existing 2 man total station with MicroSurvey Field Genius or MicroSurvey Layout 2.  Allows you to load drawings, set-out directly from the map on screen, survey points, do calculations, all directly on screen. All you need is a cable to suit your instrument.  No more learning how to use different total stations, a MicroSurvey controller makes them all the same. Use the same same controller, in the same way, even if you upgrade to Robotic or GPS. Makes for a cheaper upgrade path.