The Topcon AT-B4 is designed to offer precision with a range of useful features. It includes a magnetic damping system for stable readings, a free rotation function for ease of use, and an IPX6 rating for water resistance. The AT-B4 is a reliable option for those needing a robust automatic level.

ZAL100 Series Auto Level
Accuracy2.0 mm
Effective Diameter Lens32 mm
Magnification24x
Field of view (at 100 m)1°25‘ (2.5 m)
Minimum focus/Horizontal circle0.2 m / 1°(1g)
Working Range±15‘
ProtectionIPX6

  • AT-B Level
  • Hex Wrench
  • Cleaning Cloth
  • User Manual
  • Lens Cap

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  • Unopened and unused items may be returned within 15 days of purchase for a full refund.
  • A 10% to 20% restocking fee will apply after 15 days.
  • Returns must be accompanied by the original proof of purchase from James River Laser.
  • To learn more, visit the Return and Replacement Policy Page (Link).

  • If your order arrives damaged, please notify us within 48 hours of receipt.
  • Defective or damaged items may be replaced for the same product within 15 days of purchase.
  • Replacements are subject to product availability.

  • Offering a wide range of construction lasers, survey equipment, machine control systems, GPS systems, trench shoring, and more from top names in the industry.
  • Backing our equipment with manufacturer warranties.
  • Offering a customer-friendly return policy with flexible options.
  • Ensuring your confidence in our products through replacement policies for defective or damaged items.
  • Putting you first by resolving shipping-related issues promptly.

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