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  • TOPCON AT-B2 Optical Level
  • TOPCON AT-B2 Optical Level
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TOPCON AT-B2 Optical Level

SKU: 2110220A0
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Durable, Dependable, High Value Auto Levels

Rapid, stable, durable compensator

The compensator of AT-B Series incorporates four suspension wires made of super-high-tensile metal, which features minimal thermal expansion coefficient – providing unmatched durability and accuracy. The finely tuned magnetic damping system quickly levels and stabilizes the line-of-sight despite the fine vibrations present when working near heavy equipment or busy roadways.

Horizontal circle for measurement

Horizontal angles can be directly read in 1° or 1 gon units. The free rotation feature allows you to read any angle from zero. The circle is covered for protection against dirt and scratches and the readout window is located below the eyepiece for quick reference.

20 cm - Short minimum focus

The AT-B Series can focus on objects 20 cm in front of the telescope. This feature dramatically facilitates working in confined spaces.

All-weather dependability

With the IPX6 rating, the instrument is protected against powerful water jets from all directions, meaning the AT-B Series withstands a sudden shower or torrential rainfall. The advanced protection design also deters clouding or condensation inside the telescope.

Key Components

  • AT-B level
  • Hex wrench
  • Adjusting pins (AT-B2 only)
  • Vinyl cover
  • Cleaning cloth
  • User manual
  • Hard case
Magnification 32x
Level accuracy

The accuracy is indicated for 1 km of double stroke.
According to the state standard, levels are divided into three groups according to accuracy:

  1. High-precision — for leveling of I and II classes and allow obtaining average squared errors per 1 km of travel, which does not exceed ± (0.5 - 1.0) mm;
  2. Accurate — for leveling of III and IV classes and allow obtaining average squared errors per 1 km of travel, which does not exceed ± 3.0 mm;
  3. Technical — for engineering and technical works and allow leveling with an accuracy of no less than ± 5 mm per 1 km of travel.
 ± 0.7 мм
Level accuracy with micrometer 0.5 mm
Image Erect
Telescope length 215 mm
Lens diameter 42 mm
FOV (at 100m) 1°20' (2.3 m)
Resolution 3.0"
Minimum focus distance 0.3 m
Cross hairs distance meter coefficient 1:100
Horizontal circle diameter 103 mm
Horizontal circle division value 1°
Compensator type Magnetic damper
Compensator operating range ±15'
Round level sensitivity 10'/2 mm
Ingress Protection IPX6
Operating temperatures -20 to 50°C
Storage temperatures -40 to 70°C
Instrument dimensions 122 X 214 X 140 mm
Instrument weight 1.85 kg
Packaging dimensions 330 X 210 X 200 mm
Packaging weight 3.00 kg
Manufacturer's warranty 60 months
Producing country China
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