> For the complete documentation index, see [llms.txt](https://docs.flightsim-studio.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.flightsim-studio.com/e-jet-series/systems-guide/main-panel/eicas/apu.md).

# APU

### APU RPM INDICATION <a href="#apu-rpm-indication" id="apu-rpm-indication"></a>

* Displays the APU RPM (%).
* Green – normal operating range, Amber – cautionary operating range, Red – operating limit exceeded.

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### APU EGT (EXHAUST GAS TEMPERATURE) INDICATION <a href="#apu-egt-exhaust-gas-temperature-indication" id="apu-egt-exhaust-gas-temperature-indication"></a>

* Displays the APU temperature in degrees Celsius
* Green – normal operating range, Amber – cautionary operating range, Red – operating limit exceeded.