TOPCON AT-B4a
AUTOMATIC LEVEL
Durable, Dependable, High Value Auto Levels
Utilizing a finely tuned magnetic damping system, AT-B series automatic levels quickly level and stabilize the line of sight. These precision instruments ensure reliable leveling even when working near heavy equipment or busy highways where fine vibrations could be present. The automatic levels feature IPX6 protection against powerful water jets from all directions and are fully resistant to driving rain and splashing water.
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
SPECIFICATION:
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24X magnification
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Waterproof to IPX6 rating
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Short focus (1.6 ft min)
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Magnetic damping
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360-Degree horizontal circle
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Sighting guide
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1:100 stadia
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Approximate range: 250 ft
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1 year manufacturer's warranty
