Two top-read windows on level vials for overhead or below-waist viewing
White window frame for better visibility in dim light
Vari-Pitch vial reads slope in 1/8" increments
Full-length aluminum frame
Strong full-length magnet
V-groove working edge for use on pipe and conduit
True Blue vials offer maximum accuracy, superior readability and extreme durability. Accurate to within 0.00050" per inch in all ten level and plumb working positions.