Product Number: WK-40-1750

The WK-40-1750 Abney Level is designed for years of use in rugged environments. The internally adjustable bubble magnifier can be focused to user’s eye and locked in place eliminating refocusing.

Furnished with four scales– makes it possible to obtain any one or combination of four slope readings: degrees, percent of grade, topographic arc, and chainage correction.

  • Length: 6½”
  • Arc radius: 1¾”
  • Weight: 10 oz.
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Warren Knight has a long history of designing and manufacturing precision levels, clinometers, measurement tools and other precision instruments. While we no longer inventory some of our classic instruments but we understand their lasting value. Many of our customers still rely on these traditional tools, and we continue to support their needs.

If you require a specific instrument, we can produce custom manufacturing runs of 100 units or more. We still own the original designs, patents, and equipment, ensuring the same high-quality craftsmanship.

Additionally, Warren Knight has preserved a collection of the optical instruments and precision tools that have made for shipbuilders, military contractors, aviation engineers, and cartographers over the years and display them in our lobby museum. As our legacy of precision endures, we remain committed to meeting your specialized measurement needs.