JLG Parts Load Sensing Control Module used on numerous JLG Boom and Scissor MEWP(Mobile Elevated Work Platform) Machines and select Telehandlers. This Control Module is used on machines that utilize the LLS (Load Sensing System) and communicates to the machine the amount of weight being placed on the load cells. The Controller measures 10.25" by 5.31". Model Use: Numerous JLG Boom, Scissor, and Select Telehanders utilizing the LSS System. Please ensure proper model and serial break before parts purchase.