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 E3FA-BP21 is a cylindrical axial retro-reflective photoelectric sensor featuring a sensing distance of 100 to 500 mm, a polarized red light source, and an M18 thread size in an ABS housing. Operating on a 10-30 V power supply voltage with a PNP output type, it provides a 0.5 ms response time, Dark-ON and Light-ON operation modes, manual adjustment, an M12 connector, and IP67/IP69K protection, alongside transparent detection and P-opaquing functions. 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 E3FA-BP21. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.