AT-B Series Auto Levels

Durable, Dependable,
High Value Auto Levels

Three models – 32x, 28x, and
24x magnifications
• Ultra-short 20 cm focusing
• All-weather dependability
• ±5 Degrees self-leveling range
• Clampless, endless fine
horizontal adjustments

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Telescope

Model Magnification Field of View Min. Focus Image Stadia Focusing Knob Accuracy (1 km double run leveling) Compensator General
AT-B2 32x 1°20’ 0.3 m Erect Yes (1:100) 2-speed Focusing Knob: 0.7 mm
With Micrometer: 0.5 mm
Pendulum compensator with magnetic damping system
Setting Accuracy: 0.3”
Working Range: ±15’
Water Rating: IPX6 (IEC 60529:2001)
Operating Temp: -20ºC to 50ºC
Width: 122 mm
Length: 215 mm
Height: 140 mm
Weight: 1.85 kg
AT-B3A 28x 1°25’ Not specified Erect Yes (1:100) 1-speed Focusing Knob: 1.5 mm Pendulum compensator with magnetic damping system
Setting Accuracy: 0.5”
Working Range: ±15’
Water Rating: IPX6 (IEC 60529:2001)
Operating Temp: -20ºC to 50ºC
Width: 122 mm
Length: 214 mm
Height: 140 mm
Weight: 1.5 kg
AT-B4A 24x 1°25’ Not specified Erect Yes (1:100) 1-speed Focusing Knob: 2.0 mm Pendulum compensator with magnetic damping system
Setting Accuracy: 0.5”
Working Range: ±15’
Water Rating: IPX6 (IEC 60529:2001)
Operating Temp: -20ºC to 50ºC
Width: 122 mm
Length: 214 mm
Height: 140 mm
Weight: 1.5 kg

 

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

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.

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