Durable, dependable, high value Topcon Dumpy levels.

Topcon have two new, updated auto levels to replace the AT-B3 and AT-B4!  The levels have been updated to feature a smaller, lightweight design while still improving the performance of the unit.

New Features:

Completely NEW design, same compensator from AT-B2 series, lightweight at 1.5 kg m(3.3lb) A 13% reduction from previous version, easy to grasp (compact body), better visibility of horizontal circle, improved tangents/knobs, increased gear ratio for shock and vibration.

The Topcon AT-B Series Dumpy Levels are available in 3 Models – 24x, 28x, and 32x Magnification.

The AT-B Series of precision instruments utilise a finely tuned magnetic dampening system to provide unmatched durability and accuracy.  Essential reliability when working near heavy equipment or busy highways, or where fine vibrations may be present.

Suitable for: Site preparation, earthworks, concreting, drainage and site set-out

Features: Kit Includes:
  • Choice of 3 models: AT-B2 (32x magnification), AT-B3 (28x magnification) and AT-B4 (24x magnification)
  • Rapid, accurate and stable automatic compensation
  • Ultra-short 20cm focussing
  • All-weather dependable
  • Clampless, endless fine horizontal adjustments
  • AT-B level
  • Plumb bob
  • Hex wrench
  • Adjusting pins (AT-B2 only)
  • Vinyl cover
  • Cleaning cloth & lens cap
  • Hard case
  • User manual

 

SPECIFICATIONS: AT-B2 AT-B3 AT-B4
Length 215 mm 214 mm 214 mm
Magnification 32 x 28 x 24 x
Objective Aperture 42 mm 36 mm 32 mm
Resolving power 3 in. 3.5 in. 4 in.
Field of view

(at 100 m)

 1°20′

2.3 m

 1°25′

2.5 m

 1°25′

2.5 m
Focussing Knob 2-speed 1-speed  1-speed
Sighting aid Peep sight Gun sight  Gun sight
Accuracy

(w/out micrometre)

 0.7 mm 1.5 mm
Accuracy

(w/ micrometre)

 0.5 mm n/a  n/a
Circular level sensitivity 2 mm 2 mm 2 mm
 Horizontal Circle diameter 103 mm 103 mm 103 mm