On the line
The Omron E2EX4B3DL12M1OMS is an M12 flush-mount inductive sensor from the E2E-Next series, rated IP69K so it shrugs off the spray and steam cleaning on a bottling line. It switches at 1 kHz, which keeps up at line speed for detecting metal targets like can seams or caps. Output is PNP, configurable as NO or NC — pick the fail-safe logic your safety circuit needs. Sensing distance is 4 mm on ferrous metal — plenty for proximity detection on conveyor guides or actuator positions. The brass nickel-plated barrel stands up to caustic washdowns, and the M12 connector makes swaps fast when a line is down. Supply voltage is 10–30 VDC; draw is 20 mA.
Swapping with an E2A
The obvious peer is the E2AM12KS04M1B14OMS — same M12 form, same 4 mm flush sensing, same 1 kHz switching and IP69K protection. But there's a wiring difference: the E2A is PNP normally-open only, while the E2EX4B3DL12M1OMS lets you choose NO or NC. If your panel was wired around the E2A’s NO contact and you never need NC, it drops in without rewiring — same 10–32 VDC range, same pinout. If you need NC for a safe-state detection, the E2EX4B3DL12M1OMS is the correct upgrade. The E2A is brass (not plated) and runs at 200 mA load current versus 100 mA on the E2E-Next, but that rarely matters for a standard PLC input. Both are current production, so ordering either is straightforward.