System and method to measure an absolute working height of a plurality of agricultural attachments

A sensor assembly for measuring a working height of a plurality of agricultural attachments, the sensor assembly comprising:

• a control assembly;
• a sensor;
• and
• respective sensor holders configured for mounting at respective mounting positions on each of the plurality of respective agricultural attachments, the sensor, using the respective sensor holders, configured for reversibly mounting at the respective mounting positions on different respective attachments;
• wherein the control assembly is configured to determine the working height of the respective agricultural attachment of the plurality of respective agricultural attachments from a respective calibration data set specific to the respective mounting position on the respective agricultural attachment by:
• receiving at least a part of measured data from the sensor in a respective mounted state on the respective sensor holder, wherein the measured data from the sensor recording, in a respective mounted state on the respective sensor holder, the measured data relating to a working height of the respective agricultural attachment;
• automatically accessing a respective mounting-position-specific calibration data set, the respective mounting-position-specific calibration data set comprising calibration data specific to the respective mounting position on the respective sensor holder for the respective agricultural attachment;
• automatically determining the working height of the respective agricultural attachment from the respective mounting-position-specific calibration data set specific to the respective mounting position on the respective sensor holder for the respective agricultural attachment;
• and
• automatically controlling, responsive to determining the working height of the respective agricultural attachment, the respective agricultural attachment.