This Honeywell 5-150 PSI PROPORTIONING PRESSURETROL CONTROLLER L191B 1050 is a control/interface board manufactured by Honeywell. 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. Key specifications noted on this listing include 150 PSI. It is commonly in manufacturing equipment, CNC machinery, and automated production lines.
