This 858S ACCU-CODER rotary encoder 858s-A-21-S-0256-R3-HV-1-1-EG/40.00-CE is a sensor/switch in industrial equipment. It detects the presence, position, or proximity of a target object, or switches a circuit, outputting a signal to trigger or monitor a machine process. It is commonly in conveyor systems, robotics, and industrial automation equipment.
