What you're getting
The CP1W-AD041: 4 analog input channels on a DIN-rail module that screws into place. Designed for Omron CJ and CP1 PLCs, so it drops into the same backplane as the rest of the C-series expansion lineup. The screw terminals handle your field wiring directly — no adapter plate needed. Carries CE, cULus, Lloyd’s Register, and NK (Nippon Kaiji Kyokai) approvals. That marine pair (Lloyd, NK) means it's already ticked the box for shipboard panels, ballast treatment skids, or any saltwater environment that demands class-certified gear.