The Leica GPLE2N Invar Levelling Staff with Centimeter Graduation is used to accurately measure vertical distance and elevation. When paired with Leica automatic optical levels, such as the Jogger, Runner, NA700 series, NA2 and NAK2, this surveying rod enables high precision levelling even in the most challenging construction sites.
With a durable aluminum body, the GPLE2N levelling staff features a spring-tensioned Invar tape to ensure that it doesn't expand or contract with temperature changes. It has a length of 5.56 feet or two meters and yellow lacquered centimeter graduation side.
To optically read the staff, look through the eyepiece of the telescope of your Leica optical level and take the number shown below the reticle on the GPLE2N's centimeter graduated side. Count the number of increments between the whole number and the reticle, then estimate the number of increments between the last whole unit block and the center of the reticle.
This Leica invar levelling staff is also available in three meters or up to ten feet length with calibration certificates. The calibration certificates provide an assurance that the instrument will be reliable in use, contains special measurement conditions and other important information. You can select your desired package from the drop down list in the upper right hand corner of this page.