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-S1J-0-3M is a cuboid retro-reflective sensor featuring a sensing distance of 4000 mm, a minimum setting of 100 mm, and a spot size utilizing polarized red light. This 10-30 V component is housed in stainless steel with an M12 pigtail connector of 0.3 m and manual adjustment for the sensing method. Equipped with a PNP output type, it operates at a 1 ms response time with Dark-ON and Light-ON operation modes under M.S.R. protection. Submit the exact part number, quantity, and application requirements to receive a formal quotation.
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-S1J-0-3M. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.