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# Factorio Runtime Docs Version 2.0.77

# SignalIDType - Runtime Docs

## SignalIDType :: union

#### Union members

`"item"` |
`"fluid"` |
`"virtual"` |
`"entity"` |
`"recipe"` |
`"space-location"` |
`"asteroid-chunk"` |
`"quality"` |

Concept used in

- BlueprintLogisticFilter
- CompiledLogisticFilter
- ElemID
- SignalFilter
- SignalID
- SignalIDBase