Elevate your surveying projects with the Auto Levels AT-B Series, a reliable and precise auto level instrument from Mount Laser. Auto Levels AT-B Series offers five distinct models ： Auto Levels ATB2 Auto Levels ATB3 Auto Levels ATB3A Auto Levels ATB4 Auto Levels ATB4A to match a wide range of accuracy requirements and project budgets. Whether you are engaged in construction layout, grading, or other leveling tasks, the AT-B Series delivers consistent performance. When considering an auto level instrument, the competitive Auto Level price of the AT-B Series makes it an exceptional value. We ensure you get a high-quality auto level instrument without compromise, providing an outstanding Auto Level price for professionals who demand both accuracy and affordability. Auto Levels AT-B Series Specifications Model No. ATB2 ATB3 ATB3A ATB4 ATB4A Brand TP/ SK TP/ SK TP/ SK TP/ SK TP/ SK Standard Deviation for 1km Double-run Leveling 0.7mm 1.5mm 2.0mm 2.0mm 1.5mm Telescope Magnification 32X 28X 24X 24X 28X Telescope Image Erect Erect Erect Erect Erect Shortest Sighting Distance 0.3m 0.3m 0.3m 0.3m 0.3m View distance error ≤±0.4% ≤±0.4% ≤±0.4% ≤±0.4% ≤±0.4% Effective Aperture Size of Object Lens 42mm 36mm 36mm 32mm 32mm Resolution ≤3.0″ ≤3.5″ ≤3.5″ ≤4.0″ ≤4.0″ Angle of view 1°25′ 1°25′ 1°25′ 1°25′ 1°25′ Focusing Error ≤0.5mm ≤1.0mm ≤1.0mm ≤1.0mm ≤1.0mm Compensator Type Magnetic-Damping Magnetic-Damping Magnetic-Damping Magnetic-Damping Magnetic-Damping Compensator Working Range ±15′ ±15′ ±15′ ±15′ ±15′ Compensating Error ≤0.3″ ≤0.5″ ≤0.5″ ≤0.5″ ≤0.5″ Reticle Wedge Shape Cross Reticle Cross Reticle Cross Reticle Cross Reticle Setting Accuracy ±0.3″ ±0.5″ ±0.5″ ±0.5″ ±0.5″ Setting Time ≤ 1.5S ≤ 1.5S ≤ 1.5S ≤ 1.5S ≤ 1.5S Stadia Multiplying Constant 100 100 100 100 100 Stadia Additive Constant 0 0 0 0 0 Sensitivity of Circular Level 8′ / 2mm 10′ / 2mm 10′ / 2mm 10′ / 2mm 10′ / 2mm Graduation lnterval of Circle 360° or 400 gon optional 360° or 400 gon optional 360° or 400 gon optional 360° or 400 gon optional 360° or 400 gon optional Water and Dust Proof IPX6 IPX6 IPX6 IPX6 IPX6 Standard Accessory Manual, Allen Key, Adjusting Pin, Plastic Case Manual, Allen Key, Adjusting Pin, Plastic Case Manual, Allen Key, Adjusting Pin, Plastic Case Manual, Allen Key, Adjusting Pin, Plastic Case Manual, Allen Key, Adjusting Pin, Plastic Case Picture
