> 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/cabin-alt-lfe.md).

# CABIN ALT / LFE

### CABIN ALTITUDE INDICATION

* Displays cabin altitude in feet, regardless of the operating mode.
* Green – normal operating range, Amber – cautionary operating range, Red – warning operating range.

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### CABIN RATE OF CHANGE INDICATION

* Displays the cabin rate of change in fpm, regardless of the operating mode.
* Green – normal operating range, Amber cautionary operating range.

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### DIFFERENTIAL PRESSURE INDICATION

* Displays the differential pressure between the cabin interior and the outside in psi, regardless of the operating mode.
* Green – normal operating range, Amber cautionary operating range.

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### LANDING FIELD ELEVATION INDICATION

* Displays the landing field elevation in feet, regardless of the operating mode.
* Green – FMS destination elevation (AUTO mode).
* Cyan, with a cyan **M** prefix – manual LFE (MODE selector in **LFE CTRL**).
* Amber dashed – invalid information, out of displayable range, or manual CPCS operation (MAN).

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### HI FIELD INDICATION

* Displays HI FIELD label whenever the Cabin Altitude is in High Altitude operation mode.