| PartNumber | E3F2-R4C4-M | E3F2-R4C4-M-E | E3F2-R4C4 |
| Description | Photoelectric Sensors NPN Retro 4M DC Prew ired NPB | Photoelectric Sensors Axial Metal NPN R etro 2M | Photoelectric Sensors NPN RETRO 4M DC PREWIRED PLASTIC |
| Manufacturer | Omron | Omron | Omron |
| Product Category | Photoelectric Sensors | Photoelectric Sensors | Photoelectric Sensors |
| RoHS | N | N | Y |
| Sensing Method | Retroreflective | - | - |
| Sensing Distance | 0.1 m to 4 m | - | 4 mm to 100 mm |
| Light Source | Red LED | - | - |
| Amplifier Type | Built In | - | - |
| Connection Method | Prewired Cable | - | - |
| Output Configuration | NPN | - | NPN |
| Minimum Operating Temperature | - 25 C | - | - 25 C |
| Maximum Operating Temperature | + 55 C | - | + 55 C |
| Series | E3F2 | E3F2 | E3F2 |
| Brand | Omron Automation and Safety | Omron Automation and Safety | Omron Automation and Safety |
| Operating Supply Voltage | 24 V | - | 24 V |
| Product Type | Photoelectric Sensors | Photoelectric Sensors | Photoelectric Sensors |
| Factory Pack Quantity | 1 | 1 | 1 |
| Subcategory | Sensors | Sensors | Sensors |
| Part # Aliases | E3F2R4C4M | E3F2R4C4ME | 1771046 E3F2R4C4 |
| Unit Weight | 3.527396 oz | 3.527396 oz | 3.527396 oz |
| Body Style | - | - | Cylindrical |
| Features | - | - | DC switching types with connectors |