Abstract: Provided is a method and apparatus for storing of a sensor cable used with a medical device. The medical device may include a retraction device that is activated by depressing a lever. Once the lever is depressed, the sensor cable may automatically wind itself around a spool inside of the medical device. Additionally, an automatic stop feature prevents a sensor cable from retracting without depression of the lever, thus maintaining the exact length of cable required to connect a monitor to the monitoring site on a patient. The retraction of the sensor cable may allow for storage of the cable in the monitor itself, or may allow for storage of the cable into the retraction device, which may be detachable from the monitor.