Parts list: № Number Qty Name Options 1 BN202520 1 Sensor Kit Next page: ST740896 Automatic Boom Leveling, 3 Sensors, BoomTrac™ Pro System, Attachment ST740897 Automatic Boom Leveling System, 5 Sensors, BoomTrac™ Pro, Attachment ST531549 BOOM AUTO LEVEL ST531548 Valve Assembly And Hoses ST531550 BOOMTRAC HARNESS ST531546 BOOMTRAC JUMPER HARNESS