Topcon AT-B4 (24X) Automatic Level

The Topcon AT-B series sets a new standard for auto levels used in surveying, engineering and construction applications. The AT-B4 automatic level features further enhanced reliability under all environmental conditions. With the IPx6 rating, the instrument is protected against powerful water jets from all directions, making it fully resistant to driving rain and splashing water. The Topcon AT-B4 quickly levels and stabilizes the line of sight with its finely tuned magnetic damping system, in spite of any fine vibrations present when working near heavy equipment or busy highways.


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  • 24X magnification
  • WATERPROOF to IPX6 rating
  • Short focus (1.6 ft. min.)
  • Magnetic damping
  • 360-Degree Horizontal Circle
  • Sighting Guide
  • 1:100 Stadia
  • Approximate Range-250 feet.
  • 5 Year Manufacturers Warranty.