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| PartNumber | E3S-AD22 | E3S-AD23 | E3S-AD21 |
| Description | Photoelectric Sensors 70CM DIF NPN AL ARM HOR | Photoelectric Sensors 10CM DIFF NPN HOR W/ ALARM | Optical Sensors Photoelectric Sensors 20CM DIF NPN ALARM |
| Manufacturer | Omron | Omron | Omron Automation and Safety |
| Product Category | Photoelectric Sensors | Photoelectric Sensors | Optical Sensors - Photoelectric, Industrial |
| RoHS | N | N | - |
| Sensing Distance | 700 mm | 100 mm | 7.874" (200mm) |
| Output Configuration | NPN | NPN | NPN - Dark-ON/Light-ON - Selectable |
| Minimum Operating Temperature | - 25 C | - 25 C | - 25 C |
| Maximum Operating Temperature | + 55 C | + 55 C | + 55 C |
| Features | Light ON / Dark ON | Light ON / Dark ON | Light ON / Dark ON |
| Height | 22.3 mm | 22.3 mm | 22.3 mm |
| Length | 44 mm | 44 mm | 44 mm |
| Series | E3S-A | E3S-A | E3S-A |
| Width | 12.4 mm | 12.4 mm | 12.4 mm |
| Brand | Omron Automation and Safety | Omron Automation and Safety | - |
| Operating Supply Voltage | 24 V | 24 V | 24 V |
| Product Type | Photoelectric Sensors | Photoelectric Sensors | - |
| Factory Pack Quantity | 1 | 1 | - |
| Subcategory | Sensors | Sensors | - |
| Part # Aliases | E3SAD22 | E3SAD23 | - |
| Operating Temperature | - | - | -25°C ~ 55°C |
| Ingress Protection | - | - | NEMA 4X; IEC IP67 |
| Voltage Supply | - | - | 10 V ~ 30 V |
| Sensing Method | - | - | Reflective, Diffuse |
| Adjustment Type | - | - | Two-Turn Endless Adjuster with an Indicator |
| Response Time | - | - | 0.5ms |
| Connection Method | - | - | Cable |
| Cable Length | - | - | * |
| Light Source | - | - | Red (700nm) |