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| Part Number | E3S-BT81 |
| Datasheet | E3S-BT81 datasheet |
| Description | SENSOR THROUGH-BEAM 2M PNP |
| Manufacturer | Omron Automation and Safety |
| Series | E3S-B |
| Part Status | Obsolete |
| Sensing Method | Through-Beam |
| Sensing Distance | 78.740" (2m) |
| Voltage - Supply | 12V ~ 24V |
| Response Time | 500µs |
| Output Configuration | PNP - Dark-ON/Light-ON - Selectable |
| Connection Method | Cable |
| Ingress Protection | NEMA 4X, 6; IEC 144 IP67 |
| Cable Length | - |
| Light Source | Red (700nm) |
| Adjustment Type | Adjustable, 3/4-Turn Potentiometer |
| Operating Temperature | -25°C ~ 55°C |