... Magnification 30X Height 232mm Shortest sighting dictance 1.0m DTM122A Series Total StationsModels DTM112A, DTM112B, DTM115A, DTM115B, DTM122A, DTM122B ... mode: 1mm Track mode: 10mmAccuracy±3mm+2ppm?DMeasuring time Accuracy measurement mode2 sTrack mode0.8 sDisplay Display equipmentDouble ... 0°, horizontal 0°, horizontal 0°±90°,slope%Measure time?Less than 0.5 secondAngular unitdegree,gon,milOthers Level ...