Combine these features with the feature-packed on-board software and you ve got a lineup of Total Stations that are unmatched for performance, ease of use and productivity. Celebrated for superior optics, mechanical integrity, battery life and measuring speed, the new line boasts an easy-to-read graphic LCD and ergonomic keyboard on both faces. 1 TOTAL STATION DTM-502 SERIES DTM-552/532/522Ģ The next step in Total Station excellence W ith the new DTM-502 Series of Total Stations, Nikon has expanded and improved on its highly successful DTM-500 Series.