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| Product type | Sensors & Stats |
| IP rating | IP54 |
| Manufacturer | Siemens |
| Sensor Type | Air Differential Pressure |
| Sensor characteristics | Wall Mounted, Duct Mounted |
| Pressure range | 20 to 300 Pa |
| Type Reference | Pressure Range | ||
| QBM81-3 | 0,2…3 mbar | 20…300 Pa | 0.08…1.2 inH2O |
Differential pressure switch QBM81-... for air and non-aggressive gases