Silverline 633665 Automatic Optical Level

• The automatic optical level works like a precision telescope and allows an artificial target line, the horizontal reference to be created at a certain height
• The height different between various measuring points and the horizontal reference line can be read off using a levelling staff
• The self-levelling fuction automatically aligns the target line by itself, guaranteeing maximum measuring accuracy in all conditions

Specifications:

• Magnification: X20
• Image: erect, accurate to +/- 2.5mm over 1km distance
• Field of view 1 degree 20"
• Objective aperture: 34mm
• Minimum focus: 0.5m, 360degree circle
• Compensator range: +/-15 degree
• Compensator accuracy: +/- 0.8"
• Guaranteed Forever against faulty materials or workmanship