Omron E3FA Series Photoelectric Sensors
The Omron E3FA Series is a range of M18 cylindrical photoelectric sensors with plastic housings, IP67/IP69K protection and a 10–30 VDC supply. The series covers diffuse, background suppression, retro-reflective, through-beam and limited-distance sensing, each available with NPN or PNP output and a pre-wired 2 m cable or M12 connector. Use the guide below to find the right model, or explore all Omron photoelectric sensors.
Which E3FA Sensing Type Do You Need?
| Sensing Type | Range | Best For |
|---|---|---|
| Diffuse-reflective | 100 mm – 1 m | General object detection without a reflector |
| Background suppression | 100 – 200 mm | Ignoring objects or surfaces behind the target |
| Retro-reflective (MSR) | Up to 4 m | Longer distances with a reflector; shiny objects |
| Retro-reflective (transparent) | Up to 2 m | Glass bottles, films and other transparent objects |
| Through-beam | 15 – 20 m | Longest range; wide openings |
| Limited-distance | 10 – 50 mm | Very close-range and transparent object detection |
Omron E3FA-BN11 2M Photoelectric Sensor
Photoelectric Sensor, Transparent detected with P-opaquing function, Plastic, 100 to 500 mm (with E39-RP1) Sensing distance, Red LED, 10 to 30 VDC Power supply, NPN output, Pre-wired, 2 m Cable.
Omron E3FA-BN21 Photoelectric Sensor
Photoelectric Sensor, Transparent detected with P-opaquing function, Plastic, 100 to 500 mm (with E39-RP1) Sensing distance, Red LED, 10 to 30 VDC Power supply, NPN output, M12 Connector.
Omron E3FA-BP11 2M Photoelectric Sensor
Photoelectric Sensor, Transparent detected with P-opaquing function, Plastic, 0.1 to 2 m (with E39-RP1) Sensing distance, Red LED, 10 to 30 VDC Power supply, PNP output, Pre-wired, 2 m Cable.
Omron E3FA-BP21 Photoelectric Sensor
Photoelectric Sensor, Transparent detected with P-opaquing function, Plastic, 100 to 500 mm (with E39-RP1) Sensing distance, Red LED, 10 to 30 VDC Power supply, PNP output, M12 Connector.
Omron E3FA-BP22 Photoelectric Sensor
Photoelectric Sensor, Transparent detected with P-opaquing function, Plastic, 0.1 to 2 m (with E39-RP1) Sensing distance, Red LED, 10 to 30 VDC Power supply, PNP output, M12 Connector.
Omron E3FA-DN11 2M Photoelectric Sensor
Photoelectric Sensor, Diffuse-reflective, Plastic, 100 mm Sensing distance, Red LED, 10 to 30 VDC Power supply, NPN output, Pre-wired, 2 m Cable.
Omron E3FA-DN12 2M Photoelectric Sensor
Photoelectric Sensor, Diffuse-reflective, Plastic, 300 mm Sensing distance, Red LED, 10 to 30 VDC Power supply, NPN output, Pre-wired, 2 m Cable.
Omron E3FA-DN13 2M Photoelectric Sensor
Photoelectric Sensor, Diffuse-reflective, Plastic, 1 m Sensing distance, Red LED, 10 to 30 VDC Power supply, NPN output, Pre-wired, 2 m Cable.
Omron E3FA-DN15 2M Photoelectric Sensor
Photoelectric Sensor, Diffuse-reflective, Plastic, 300 mm Sensing distance, Infrared LED, 10 to 30 VDC Power supply, NPN output, Pre-wired, 2 m Cable.
Omron E3FA-DN16 2M Photoelectric Sensor
Photoelectric Sensor, Diffuse-reflective, Plastic, 1 m Sensing distance, Infrared LED, 10 to 30 VDC Power supply, NPN output, Pre-wired, 2 m Cable.
Omron E3FA-DN21 Photoelectric Sensor
Photoelectric Sensor, Diffuse-reflective, Plastic, 100 mm Sensing distance, Red LED, 10 to 30 VDC Power supply, NPN output, M12 Connector.
Omron E3FA-DN22 Photoelectric Sensor
Photoelectric Sensor, Diffuse-reflective, Plastic, 300 mm Sensing distance, Red LED, 10 to 30 VDC Power supply, NPN output, M12 Connector.
Omron E3FA-DN23 Photoelectric Sensor
Photoelectric Sensor, Diffuse-reflective, Plastic, 1 m Sensing distance, Red LED, 10 to 30 VDC Power supply, NPN output, M12 Connector.
Omron E3FA-DP11 2M Photoelectric Sensor
Photoelectric Sensor, Diffuse-reflective, Plastic, 100 mm Sensing distance, Red LED, 10 to 30 VDC Power supply, PNP output, Pre-wired, 2 m Cable.
Omron E3FA-DP12 2M Photoelectric Sensor
Photoelectric Sensor, Diffuse-reflective, Plastic, 300 mm Sensing distance, Red LED, 10 to 30 VDC Power supply, PNP output, Pre-wired, 2 m Cable.
Omron E3FA-DP13 2M Photoelectric Sensor
Photoelectric Sensor, Diffuse-reflective, Plastic, 1 m Sensing distance, Red LED, 10 to 30 VDC Power supply, PNP output, Pre-wired, 2 m Cable.
Omron E3FA-DP15 2M Photoelectric Sensor
Photoelectric Sensor, Diffuse-reflective, Plastic, 300 mm Sensing distance, Infrared LED, 10 to 30 VDC Power supply, PNP output, Pre-wired, 2 m Cable.
Omron E3FA-DP16 2M Photoelectric Sensor
Photoelectric Sensor, Diffuse-reflective, Plastic, 1 m Sensing distance, Infrared LED, 10 to 30 VDC Power supply, PNP output, Pre-wired, 2 m Cable.
Omron E3FA-DP21 Photoelectric Sensor
Photoelectric Sensor, Diffuse-reflective, Plastic, 100 mm Sensing distance, Red LED, 10 to 30 VDC Power supply, PNP output, M12 Connector.
Omron E3FA-DP22 Photoelectric Sensor
Photoelectric Sensor, Diffuse-reflective, Plastic, 300 mm Sensing distance, Red LED, 10 to 30 VDC Power supply, PNP output, M12 Connector.
Omron E3FA-DP23 Photoelectric Sensor
Photoelectric Sensor, Diffuse-reflective, Plastic, 1 m Sensing distance, Red LED, 10 to 30 VDC Power supply, PNP output, M12 Connector.
Omron E3FA-DP24 Photoelectric Sensor
Photoelectric Sensor, Diffuse-reflective, Plastic, 100 mm Sensing distance, Infrared LED, 10 to 30 VDC Power supply, PNP output, M12 Connector.
Omron E3FA-DP25 Photoelectric Sensor
Photoelectric Sensor, Diffuse-reflective, Plastic, 300 mm Sensing distance, Infrared LED, 10 to 30 VDC Power supply, PNP output, M12 Connector.
Omron E3FA-DP26 Photoelectric Sensor
Photoelectric Sensor, Diffuse-reflective, Plastic, 1 m Sensing distance, Infrared LED, 10 to 30 VDC Power supply, PNP output, M12 Connector.
Omron E3FA-LP11 2M Photoelectric Sensor
Photoelectric Sensor, BGS (background suppression), Plastic, 100 mm Sensing distance, Red LED, 10 to 30 VDC Power supply, PNP output, Pre-wired, 2 m Cable.
Omron E3FA-LP21 Photoelectric Sensor
Photoelectric Sensor, BGS (background suppression), Plastic, 100 mm Sensing distance, Red LED, 10 to 30 VDC Power supply, PNP output, M12 Connector.
Omron E3FA-LP22 Photoelectric Sensor
Photoelectric Sensor, BGS (background suppression), Plastic, 200 mm Sensing distance, Red LED, 10 to 30 VDC Power supply, NPN output, M12 Connector.
Omron E3FA-RN11 2M Photoelectric Sensor
Photoelectric Sensor, Retro-reflective with MSR function, Plastic, 0.1 to 4 m with (E39-R1S) Sensing distance, Red LED, 10 to 30 VDC Power supply, NPN output, Pre-wired, 2 m Cable.
Omron E3FA-RN12 2M Photoelectric Sensor
Photoelectric Sensor, Coaxial Retro-reflective with MSR function, Plastic, 0 to 500 mm with (E39-R1S) Sensing distance, Red LED, 10 to 30 VDC Power supply, NPN output, Pre-wired, 2 m Cable.
Omron E3FA-RN21 Photoelectric Sensor
Photoelectric Sensor, Retro-reflective with MSR function, Plastic, 0.1 to 4 m with (E39-R1S) Sensing distance, Red LED, 10 to 30 VDC Power supply, NPN output, M12 Connector.
Omron E3FA-RP11 2M Photoelectric Sensor
Photoelectric Sensor, Retro-reflective with MSR function, Plastic, 0.1 to 4 m with (E39-R1S) Sensing distance, Red LED, 10 to 30 VDC Power supply, PNP output, Pre-wired, 2 m Cable.
Omron E3FA-RP21 Photoelectric Sensor
Photoelectric Sensor, Retro-reflective with MSR function, Plastic, 0.1 to 4 m with (E39-R1S) Sensing distance, Red LED, 10 to 30 VDC Power supply, PNP output, M12 Connector.
Omron E3FA-RP22 Photoelectric Sensor
Photoelectric Sensor, Coaxial Retro-reflective with MSR function, Plastic, 0 to 500 mm with (E39-R1S) Sensing distance, Red LED, 10 to 30 VDC Power supply, PNP output, M12 Connector.
Omron E3FA-TN11 2M Photoelectric Sensor
Omron Photoelectric Sensor, Through-beam (Emitter: E3FA-TN11-L 2M, Receiver: E3FA-TN11-D 2M), Plastic, 20 m Sensing distance, Red LED, 10 to 30 VDC Power supply, NPN output, Pre-wired, 2 m Cable.
Omron E3FA-TN12 2M Photoelectric Sensor
Omron Photoelectric Sensor, Through-beam (Emitter: E3FA-TN12-L 2M, Receiver: E3FA-TN12-D 2M), Plastic, 15 m Sensing distance, Infrared LED, 10 to 30 VDC Power supply, NPN output, Pre-wired, 2 m Cable.
Omron E3FA-TN21 Photoelectric Sensor
Omron Photoelectric Sensor, Through-beam (Emitter: E3FA-TN21-L, Receiver: E3FA-TN21-D), Plastic, 20 m Sensing distance, Red LED, 10 to 30 VDC Power supply, NPN output, M12 Connector.
Omron E3FA-TN22 Photoelectric Sensor
Omron Photoelectric Sensor, Through-beam (Emitter: E3FA-TN22-L, Receiver: E3FA-TN22-D), Plastic, 15 m Sensing distance, Infrared LED, 10 to 30 VDC Power supply, NPN output, M12 Connector.
Omron E3FA-TP11 2M Photoelectric Sensor
Omron Photoelectric Sensor, Through-beam (Emitter: E3FA-TP11-L 2M, Receiver: E3FA-TP11-D 2M), Plastic, 20 m Sensing distance, Red LED, 10 to 30 VDC Power supply, PNP output, Pre-wired, 2 m Cable.
Omron E3FA-TP12 2M Photoelectric Sensor
Omron Photoelectric Sensor, Through-beam (Emitter: E3FA-TP12-L 2M, Receiver: E3FA-TP12-D 2M), Plastic, 15 m Sensing distance, Infrared LED, 10 to 30 VDC Power supply, PNP output, Pre-wired, 2 m Cable.
Omron E3FA-TP21 Photoelectric Sensor
Omron Photoelectric Sensor, Through-beam (Emitter: E3FA-TP21-L, Receiver: E3FA-TP21-D), Plastic, 20 m Sensing distance, Red LED, 10 to 30 VDC Power supply, PNP output, M12 Connector.
Omron E3FA-TP22 Photoelectric Sensor
Omron Photoelectric Sensor, Through-beam (Emitter: E3FA-TP22-L, Receiver: E3FA-TP22-D), Plastic, 15 m Sensing distance, Infrared LED, 10 to 30 VDC Power supply, PNP output, M12 Connector.
Omron E3FA-VN11 2M Photoelectric Sensor
Omron Photoelectric Sensor, Limited distance reflective, Plastic, 10 to 50 mm Sensing distance, Red LED, 10 to 30 VDC Power supply, NPN output, Pre-wired, 2 m Cable.
Omron E3FA-VP21 Photoelectric Sensor
Omron Photoelectric Sensor, Limited distance reflective, Plastic, 10 to 50 mm Sensing distance, Red LED, 10 to 30 VDC Power supply, PNP output, M12 Connector.
The Omron E3FA Photoelectric Sensor is engineered to support dependable detection using Omron diffuse photoelectric sensor and Omron retro reflective sensor principles. It utilizes an Omron IR sensor light source to detect objects based on reflected or returned light, making it suitable for presence detection and positioning tasks. Diffuse reflective operation allows detection of objects without reflectors, while retro-reflective configurations improve stability when paired with reflectors. The E3FA model is commonly applied in packaging machines, conveyors, and assembly systems where consistent detection is required. Its optical design ensures stable sensing across varying surface colors and materials. As part of the E3 series, the E3FA sensor delivers reliable optical performance for standard industrial automation applications requiring compact and versatile photoelectric sensing.