This smart reefer 3 HMI-3 controller 845-2372 for thermo king SR3 SB SLX SLXE 100 200 is a control/interface board in industrial equipment. It handles signal processing, communication, or logic functions as part of a PLC or machine control system, interfacing between the processor and connected I/O or peripherals. It is commonly in OEM equipment and MRO replacement for industrial control systems.
