With the Check & Adjust tool every Leica total station and MultiStation can be easily calibrated by the user. Why is Check & Adjust Necessary? \tHigh precision total stations require precise alignment of the rotational axis \tEven the most precise assembly process will result in small deviations which can lead to instrument errors. Although these errors are corrected after assembly and before shipping, over time stress, temperature changes, or shock, may reintroduce these errors. This video from Leica Geosystems shows why calibration of instruments is necessary, and how it can be performed using the example of Leica Captivate.