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| Part Number | E3S-R31 | 
| Datasheet | E3S-R31 datasheet | 
| Description | SENSOR RETRO POL 1M PNP | 
| Manufacturer | Omron Automation and Safety | 
| Series | E3S-R | 
| Part Status | Obsolete | 
| Sensing Method | Retroreflective, Polarized | 
| Sensing Distance | 3.937" ~ 39.370" (100mm ~ 1m) ADJ | 
| Voltage - Supply | 10V ~ 30V | 
| Response Time | 1ms | 
| Output Configuration | PNP - Dark-ON/Light-ON - Selectable | 
| Connection Method | Cable | 
| Ingress Protection | IEC IP67 | 
| Cable Length | - | 
| Light Source | Red (700nm) | 
| Adjustment Type | Two-Turn Endless Adjuster | 
| Operating Temperature | -25°C ~ 55°C |