... and measurement time.1.5 mm + 2 ppm to prism2 mm + 2 ppm to any surfaceExtremely fast (1 second)1000 m ... Out, Resection, Height Transfer, Construction, Area (Plan & Surface), Volume Calculation, Tie Distance (MLM), Remote Height, Hidden Point, Offset, Reference Line ... ISO-17123-4)Standard: 1.5 mm+2 ppm / typ. 2.4 s, Fast: 3 mm+2 ... ppm / typ. 0.8 s, Tracking: 3 mm+2 ppm / typ. <0.15 s2 ...