Parts list: № Number Qty Name Options 1 [] 1 CAN TERMINATOR 2 [] 1 ULTRASONIC HEIGHT SENSOR 3 [] 1 ULTRASONIC HEIGHT SENSOR 4 [] 1 BOOMTRAC HARNESS 5 RE207311 1 Electronic Control Unit 6 AN209717 1 Wiring Harness Next page: ST739483 Attachment, BoomTrac Pro™ Boom Levelling System 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