The silverline 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. Magnification X20. Image: erect, accurate to +/- 2.5mm over 1km distance. Field of view 1degree 20". Objective aperture 34mm. Minimum focus 0.5m, 360degree circle. Compensator range +/-15 degree, compensator accuracy +/- 0.8".
