Not a drop-in for an E3ZM
The EE-SX677P-WR 1M: If you are cross-referencing this against an E3ZM-T81 2M (PNP) or E3ZM-T61 2M (NPN), stop. The E3ZM is a rectangular stainless steel body with a 15 m through-beam range, IP67/IP69K protection, and a 10-30 VDC supply. The EE-SX677P is a plastic slot sensor limited to a 5 mm detection zone. The mounting is fundamentally different — one is a slot for a moving flag, the other is a separate emitter/receiver pair with a gap up to 15 m. A panel designed around an E3ZM will need a different bracket and rewiring to use this part. Genuine is genuine, but they are different passports. If your application calls for a slot sensor, the EE-SX family is correct. The E3ZM will not fit the slot.