| PartNumber | MK11/M8-1A66D-500W | MK11/M8-1A66C-500W | MK11/M8-1A66B-500W |
| Description | Proximity Sensors REED SENSOR 1 FORM A SPST-NO, AT 2025 WT | Proximity Sensors SPST-NO 180V 0.5A Magnetic Thrd w/CBL | Proximity Sensors SPST-NO 200V Sensor Magnetic Thrd w/CBL |
| Manufacturer | Standex Electronics | Standex Electronics | Standex Electronics |
| Product Category | Proximity Sensors | Proximity Sensors | Proximity Sensors |
| RoHS | Y | Y | Y |
| Sensing Method | Magnetic | Magnetic | Magnetic |
| Sensing Distance | - | - | - |
| Mounting Style | Wire | Panel | Panel |
| Output Configuration | - | - | - |
| Maximum Operating Temperature | + 70 C | + 80 C | + 80 C |
| Minimum Operating Temperature | - 5 C | - 5 C | - 5 C |
| Packaging | Bulk | Bulk | Bulk |
| Length | 25 mm | 38 mm | 38 mm |
| Series | MK11(P) | MK11(P) | MK11(P) |
| Brand | MEDER electronic (Standex) | MEDER electronic (Standex) | MEDER electronic (Standex) |
| Operating Supply Current | 500 mA | 500 mA | 500 mA |
| Operating Supply Voltage | - | 200 V | 200 V |
| Factory Pack Quantity | 500 | 500 | 500 |
| Supply Voltage Max | 200 VDC | - | - |
| Part # Aliases | 9118066054 | 9118366054 | 9118266054 |
| Unit Weight | 0.176370 oz | - | 0.270904 oz |
| Description/Function | - | 1 Form A (SPST NO), 500 mm cable length | 1 Form A (SPST NO), 500 mm cable length |