FEATURES: Magnetically dampened compensator that maintains compensation over product life and for easy setup with optimum range and accuracy, 26 x magnification for 100 m+ range, 2 mm accuracy (1 km Double Run) for high quality work results, Heavy-duty levelling base is fast and easy to setup and level, 360? horizontal circle for precise measuring of horizontal angles, Vial set-Up with final 1? self-levelling capability for extra ease of use. SPECIFICATIONS: Levelling Type: Auto, Magnification: 26x, Accuracy: 2 mm, Range: 100 m, Stadia Ratio: 1:100, Horizontal Circle Type: Continuous Drive, Weight: 1.72 kg, Width: 130 mm, Length: 207 mm, Height: 145 mm.