auto level machine

GAL serial Auto Level with air damping 20X/24X/28X/32X green/red color

GAL serial Auto Level with air damping 20X/24X/28X/32X green/red color Specification: GAL20 GAL24 GAL28 GAL32 Standard Deviation for 1km 2.0mm 2.0mm 1.5mm 1.0mm Double-run Leveling Image Erect Erect Erect Erect Magnification 20X 24X 28X 32X Objective Aperture 40mm 40mm 40mm 40mm Field of View 120 120 120 120 Minimum Focus 0.65m 0.65m 0.65m 0.65m Multiplication Constant 100 100 100 100 Additive Constant 0 0 0 0 Compensating Range +/-15' +/-15' +/-15' +/-15' Setting