This Emerson ROSEMOUNT / MODEL 56 DUAL CHANNEL TRANSMITTER 20-30 VDC 56-02-22-32-HT is a sensor/switch manufactured by Emerson. It senses object presence, distance, or position (or switches an electrical circuit) and converts that into an output signal for machine control or monitoring. Key specifications noted on this listing include 20-30 VDC, 30 VDC. It is commonly in conveyor systems, robotics, and industrial automation equipment.
