What this sensor is and the fit question it answers
The Omron E3ZM-T81-L 5M is a rectangular photoelectric sensor in the E3ZM family, built for presence and position sensing on automated lines. Its rectangular housing gives you a low-profile mount where a barrel-style M18 or M30 sensor won't fit between rollers or in a tight conveyor gap.
Lifecycle and sourcing — no runaround
No stock-holding claim — we quote what we can get.