What type of switch output is included on SMC Residual Pressure Release Valve VP544-5DZ1-03N-M-X538 ?

The VP544 -X538 is a "Dual" valve with separate safety limit switches to monitor each spool independently..  The "M: indicates Omron switch option.  Each Omron switch has a pair of dry contacts, and it's own M12, 4-pin connector.  Mating cable p/n for the Omron switch is is ZS-37-* (depending upon length), and (2) ea cables are required per valve.