NEW  AT-B3 For TOPCON AUTOMATIC OPTICAL LEVEL 28X  MAGNIFICATION
   Instructions included

  • Rapid, Accurate, and Stable Automatic Compensation
  • Ultra-Short 20cm (7.9 in.) Focusing
  • All-Weather Dependability
  • Clampless, Endless Fine Horizontal Adjustments

 AT-B2AT-B3AT-B4
Telescope
Length215mm (8.46 in.)
Magnification32X28X24X
Objective Aperture42mm (1.65 in.)36mm (1.42 in.)32mm (1.26 in.)
Resolving Power3"3.5"4"
Field of View
(at 100m/328ft.)		1uff9f20'
(2.3m / 7.5ft.)		1uff9f25'
(2.5m / 8.2ft.)
Minimum Focus0.2m (7.9 in.) from end of telescope
0.3m (1ft.) from instrument center
ImageErect
Stadia Constant0
Stadia Ratio100
Accuracy (1km double run leveling)
Without Micrometer0.7mm (0.03 in.)1.5mm (0.06 in.)2.0mm (0.08 in.)
With Micrometer0.5mm (0.02 in.)n/a
Compensator
TypePendulum compensator with magnetic damping system
Setting Accuracy0.3"0.5"
Working Rangeu00b115'
Circular level
Sensitivity10' / 2mm
Horizontal circle
Diameter103mm (4.1 in.)
Minimum Division1uff9f/ 1gon
General
Water ResistanceIPX6 (IEC 60529:2001)
Operating Temperature-20u2103 to +50u2103 (-4uff9fF to +122uff9fF)
SizeWidth130mm (5.12 in.)
Length215mm (8.46 in.)
Height140mm (5.51 in.)135mm (5.31 in.)
Weight1.85kg (4.1 lbs.)1.7kg (3.7 lbs.

 
















































100% Brand new and top quality

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  •    6 months Warranty. Buy with confidence!
  •    If item is defective in 3 months, We will send you a replacement without extra charger, or offer refund after we receive the defective item.
  •    If item is defective after 3 months, you can still send it back to us. We will send you a new one after receiving the defective item. But you have to pay the extra shipping fee.

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