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| PartNumber | E3F2-R4C4-M | E3F2-R4C4 | E3F2-R4C4-E |
| Description | Photoelectric Sensors NPN Retro 4M DC Prew ired NPB | Photoelectric Sensors NPN RETRO 4M DC PREWIRED PLASTIC | Optical Sensors Photoelectric Sensors RetroReflect w/2M Cb Sense Dist 0.1 to 4M |
| Manufacturer | Omron | Omron | - |
| Product Category | Photoelectric Sensors | Photoelectric Sensors | - |
| RoHS | 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 | - |
| Brand | Omron Automation and Safety | Omron Automation and Safety | - |
| Operating Supply Voltage | 24 V | 24 V | - |
| Product Type | Photoelectric Sensors | Photoelectric Sensors | - |
| Factory Pack Quantity | 1 | 1 | - |
| Subcategory | Sensors | Sensors | - |
| Part # Aliases | E3F2R4C4M | 1771046 E3F2R4C4 | - |
| Unit Weight | 3.527396 oz | 3.527396 oz | - |
| Body Style | - | Cylindrical | - |
| Features | - | DC switching types with connectors | - |