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| PartNumber | E3F2-R4B4-M 2M | E3F2-R4B4-M-E | E3F2-R4B4-ME 5M |
| Description | Optical Sensors Photoelectric Sensors PNP Retro 4M DC Prew ired NPB | Optical Sensors Photoelectric Sensors PNP Retro 2M Axial Metal | Optical Sensors Photoelectric Sensors AxialMetal PNP Retro 5M |
| Manufacturer | Omron Automation and Safety | Omron Automation and Safety | OMRON |
| Product Category | Optical Sensors - Photoelectric, Industrial | Optical Sensors - Photoelectric, Industrial | IC Chips |
| Series | E3F2 | E3F2 | E3F2 |
| Operating Temperature | -25°C ~ 55°C | -25°C ~ 55°C | - |
| Ingress Protection | IEC IP67 | NEMA 6 | - |
| Voltage Supply | 10 V ~ 30 V | 10 V ~ 30 V | - |
| Sensing Method | Retroreflective, Polarized | Retroreflective, Polarized | - |
| Output Configuration | PNP - Dark-ON/Light-ON - Selectable | PNP - Open Collector | - |
| Adjustment Type | - | Fixed | - |
| Response Time | 1ms | 1ms | - |
| Sensing Distance | 3.937" ~ 157.480" (100mm ~ 4m) ADJ | 3.937" ~ 157.480" (100mm ~ 4m) ADJ | - |
| Connection Method | Wire | Connector | - |
| Cable Length | * | * | - |
| Light Source | Infrared (660nm) | Red LED | - |
| Packaging | - | - | Bulk |