From the Manufacturer
Standard of the industry the 135 gives you leveling capability for setting pitch and leveling ground.This econo line instrument does not have a circle or verticle arc.Brass leveling screws insure long life and less breakage.With a 200ft working range and a accuracy of 1/4" at 100 feet this unit gives you leveling capability at a very good price.Base is 1/2-20 thread order 60-ALQC21 for the right tripod...............or better yet oreder it as package 54-135K and get both the tripod and the rod included.
Product Description
Fast setup and simple to use Model 54-135 is designed strictly for leveling Econo Line instruments have no circles or vertical arc Unit uses 5/8 x 11 thread Features: 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 (14m) short focus for maximum usable range Sliding lock levers to lock telescope (Model 136) One piece aircraft aluminum telescope Electrostatically powder coated safety yellow paint One Year Warranty Includes: Level Model 54-135, Allen wrench, and Hard Carrying Case