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| PartNumber | E3S-R81 | E3S-R82 | E3S-R81 2M |
| Description | Photoelectric Sensors PNP VERT RED LED 0. 1-1M | Optical Sensors Photoelectric Sensors PNP VERT INFARED 10 -30 cm | Photoelectric Sensors |
| Manufacturer | Omron | Omron Automation and Safety | - |
| Product Category | Photoelectric Sensors | Optical Sensors - Photoelectric, Industrial | - |
| RoHS | N | - | - |
| Series | E3S | E3S-R | - |
| Brand | Omron Automation and Safety | - | - |
| Product Type | Photoelectric Sensors | - | - |
| Factory Pack Quantity | 1 | - | - |
| Subcategory | Sensors | - | - |
| Part # Aliases | E3SR81 | - | - |
| Operating Temperature | - | -25°C ~ 55°C | - |
| Ingress Protection | - | IEC IP67 | - |
| Voltage Supply | - | 10 V ~ 30 V | - |
| Sensing Method | - | Retroreflective | - |
| Output Configuration | - | PNP - Dark-ON/Light-ON - Selectable | - |
| Adjustment Type | - | Two-Turn Endless Adjuster with an Indicator | - |
| Response Time | - | 1ms | - |
| Sensing Distance | - | 0.394" ~ 1.181" (10mm ~ 30mm) ADJ | - |
| Connection Method | - | Cable | - |
| Cable Length | - | * | - |
| Light Source | - | Infrared (880nm) | - |