From the Manufacturer
This instrument will not only help you level the ground but also make sure your posts are straight with its vertical operation. This unit has no circle (see 54-200B) but has a working range of 200 ft with a 1/4" at 100 feet accuracy.
Product Description
Fast setup and simple to use. Model 136 is used for leveling, plumbing, or running vertical lines. Econo Line instruments have no circles or vertical arc. Unit uses 5/8 x 11 thread. Non-strip focus knob prevents breakage and lens damage. Built-in sunshade reduces glare. Large achromatic coated objective lens for a sharp image. Rubber eyepiece cap protects eyeglasses. Durable brass leveling screws. Dust protected eyepiece with fixed cross hairs for accuracy. High precision glass level vials 4-1/2 foot (1.4m) short focus for maximum usable range. One piece aircraft aluminum telescope Electrostatically powder coated safety yellow paint. One Year Warranty Working Range: 200 feet (61M) Accuracy: 1/4-in at 100 feet Sliding lock levers to lock telescope (Model 136) Includes: Level Model 54-136, Tripod Model 60-ALQCI21, Aluminum Rod, Hard Carrying Case, and Allen wrench.