Confirm the exact configuration
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

Omron
The Omron E3ZM-R81-2M is an E3ZM cuboid retro-reflective sensor featuring a stainless steel housing and polarized red light. It provides a sensing distance from 100 mm up to 4000 mm with a manual adjustment setting method, 1 ms response time, PNP output type, and 2 m cable length supporting Dark-ON and Light-ON operation modes across 10-30 V. Submit the exact part number, quantity, and application requirements to receive a quote for this component.
Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Omron references — within one business day.
For a faster response, include quantity, condition, and delivery destination.
Verified configuration
Engineering context
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Our sourcing response is prepared against Omron E3ZM-R81-2M. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.