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-RP21-F2 is a cylindrical axial photoelectric sensor featuring a polarized red light retro-reflective sensing method with a range of 100 to 4000 mm. Built with an M18 ABS housing and an M12 connector, this 10-30 VDC unit delivers a PNP output with Dark-ON and Light-ON operation modes, a 0.5 ms response time, and M.S.R. functionality protected by IP67/IP69K ratings. Manual adjustment configures the sensing distance, utilizing a power supply voltage of 10-30 V. Submit the exact part number, quantity, and application requirements for a quote.
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-RP21-F2. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.