Secondly, recalibration adapts the continuous cardiac output measurement to extreme situations. The 8-speed automatic transmission has also received recalibration for better shift timing. The electrochemical sensor is sensitive to alcohol vapors, and requires recalibration over time. The sensors require recalibration or replacement every six months. Pipette recalibration is an important consideration in laboratories using these devices. Digital calipers have zero set buttons, for quick recalibration. Recalibration is recommended after changes in patient position, therapy or condition. They also perform reprocessing when recalibration is necessary. It also does not need recalibration after installation or during its service life. Each time a different type of ammunition or firearm is used, the device needs recalibration. Most landed on less-heavily populated areas in Kent due to erroneous recalibration. It was largely a recalibration of then prevailing Mahasakaraj or Saka Era. "The Occupation Recalibration", that Leonard did the right thing. A disadvantage is the need for regular recalibration by transpulmonary thermodilution. A recalibration of the results in 2009 suggest an age of 33,000 years.