DT210 Specifications
  DT210 DT510 DT510A DT610
Angle Measurement
Accuracy 2" 5"  7"
Display Resolution 1"/5"  1"/5"  1"/5"  5"/10"
Level Vial Sensitivity
Plate Level 20" / 2mm 40" / 2mm 40" / 2mm  60" / 2mm
Circular Level 10' / 2mm 10' / 2mm 10' / 2mm 10' / 2mm  
Telescope
Magnification 30x 30x 30x  26x
Resolving Power 3" 3" 3"  3.5"
Minimum Focus 3 ft. (0.9m) 3 ft. (0.9m) 3 ft. (0.9m)  3 ft. (0.9m)