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 E3RA-TP21 is a cylindrical radial through-beam sensor from the E3FA-E3FB product family, featuring an M18 thread size and an ABS housing material with an IP67/IP69K degree of protection. This unit delivers a 15000 mm sensing distance via polarity free red light, utilizing a manual adjustment setting method and an M12 connector connection method. Operating on a 10-30 V power supply voltage, it provides a PNP output type with Dark-ON and Light-ON operation modes and a 0.5 ms response time. Submit the exact part number, quantity, and application requirements to request 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 E3RA-TP21. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.