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| PartNumber | E3F2-R4B4F-M1-M | E3F2-R4B4F-M-E | E3F2-R4B4F-M 2M |
| Description | Photoelectric Sensors Retro PNP Polarized M12 Conn, Fix Sense | Optical Sensors Photoelectric Sensors Axial Metal NPN Retro M12Con | Photoelectric Sensors PNP, Retro, 4M, DC Prewired NPB |
| Manufacturer | Omron | - | - |
| Product Category | Photoelectric Sensors | - | - |
| RoHS | Y | - | - |
| Sensing Method | Retroreflective | - | - |
| Sensing Distance | 4 m | - | - |
| Light Source | Red LED | - | - |
| Connection Method | Prewired Cable | - | - |
| Output Configuration | PNP | - | - |
| Series | E3F2 | - | - |
| Brand | Omron Automation and Safety | - | - |
| Product Type | Photoelectric Sensors | - | - |
| Factory Pack Quantity | 1 | - | - |
| Subcategory | Sensors | - | - |
| Part # Aliases | E3F2R4B4FM1M | - | - |
| Unit Weight | 3.527396 oz | - | - |