| Device | Mesasurement |
| Venturimeter | Rate of flow (Discharge) |
| Flow nozzle | Rate of flow (Discharge) |
| Orifice meter | Rate of flow (Discharge) |
| Bend meter | Rate of flow (Discharge) |
| Rotometer | Rate of flow (Discharge) |
| Pitot tube | Velocity |
| Hot wire anemometer | Air & gas Velocity |
| Current meter | Velocity in open channels |
| Pitometer log | Sub marine speed and ship speed relative of water |
| Hydrometer | Specifice gravity (relative density) |
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