| DEO.Co-operatEquip (1). | The specialized equipment co-operating with the TOE. |
| Refinement:The calibration keyboard used by service personnel to check the sensor and set alarm thresholds. | |
| DEO.Co-operatEquip (2). | The specialized equipment co-operating with the TOE. |
| Refinement:The central power switch of the mining machinery (longwall) and lighting. | |
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