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The following AC and Relay I/O modules are available for the CLICK PLC System. Up to 8 I/O modules can be connected to a CLICK CPU module
to expand the system I/O count and meet the needs of a specific application.
CLICK PLC AC and Relay I/O Modules start at $55.00
Use a CLICK CPU as a standalone PLC OR add up to 8 I/O Modules for increased capability