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 # Units

 Last update: 16.07.2025 

This section covers the following topics:

- **[System units and user units](../../../../UDA/add_api/architecture/units/system_units.md)**
- **[Outputting values](../../../../UDA/add_api/architecture/units/output_vals.md)**
- **[Inputting values](../../../../UDA/add_api/architecture/units/input_vals.md)**
- **[Custom conversions](../../../../UDA/add_api/architecture/units/custom_conversion.md)**