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MGL Extreme Mini EFIS

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Part# 11-08757


The XTreme EFIS is an affordable mini EFIS. It can be configured as a PFD (with AHRS sensors added), and/or an engine monitor (with RDAC added). It includes a GPS receiver that is used to provide ground speed and range information, as well as a backup/control for the AHRS. If you do not select the SP-4 attitude sensor, you can still have a GPS-derived bank angle display!

You can use it as...

  • Primary EFIS
  • Backup EFIS
  • Engine Monitor
  • EFIS/Engine Monitor

Some might use it for just 1 function, or you could use all functions!

Upcoming functions (free software upgrade later this year): Basic GPS navigation (waypoints, routes, CDI (no moving map)), and Internal Autopilot (just add servos and connection module).

1 RDAC is required for engine functions to work.
See Accessories.

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WARNING: Cancer and Reproductive Harm -


  • Alarms on most displays
  • Programmable maintenance timer for scheduled routine engine maintenance
  • Programmable airframe timer for scheduled airframe maintenance.
  • Records maximum and minimum values of most displayed values
  • Built in black box recorder records all flight data, engine, attitude and GPS data to SD card. Data can be exported to Google Earth, Microsoft Excel, etc.
  • Includes a 1000 entry automatic flight log (Records start date&time, flight time, pilot number, Hobbs time, maintenance time, max altitude, airspeed and VSI reached during the flight)
  • User configurable start up (Splash) screen
  • Unlimited configurable checklists
  • Unlimited configurable graphic information displays
  • Automatic or manual local magnetic variation
  • Dual menu system for quick item selection and user setups
  • Sunrise/Sunset calculator
  • Firmware upgrades via SD Card
  • 3 year limited warranty (MGL Avionics US)


  • Powerful ARM processor
  • 4.3 high resolution 480x272, sunlight readable, wide viewing angle, 600 nits TFT LCD display
  • LED backlight (brightness can be adjusted for low light flying conditions)
  • Fits standard 3 1/8 aircraft instrument panel hole
  • SD Card interface for data recording, user splash screens, checklists, graphic information pages, firmware upgrades etc
  • 1/8 NPT female fittings for Altitude and Airspeed pitot tube connections
  • 1x RS232 communication port
  • 1x MGL Avionics Airtalk communication port
  • 1x MGL Avionics RDAC communications port
  • 1x CAN communication port
  • Rotary control plus 5 independent buttons for easy menu navigation and user input
  • External alarm switch output for an external indicator lamp etc
  • Built in 50 Channel GPS receiver with over 1 million effective correlators with high immunity to jamming
  • Time To First Fix (TTFF) of less than 1 second
  • External active GPS antenna connection
  • Support for an internal or an external GPS receiver
  • Built in RTC (Real Time Clock)
  • Wide input supply voltage range of 8 to 30V DC
  • Built in voltage reversal and over voltage protection for harsh electrical environments
  • Light weight design


  • Accessories
  • Frequently Purchased With
  • Customers Also Viewed


Took me a bit to put together the daisy chain installation process but once I got that figured out, turned into a one-day project to install the Xtreme, the RDAC, the Magnetometer and the AHRS. Really enjoying the new upgrade to my Sonex cockpit and everything works well. Nice visuals, easy to understand interface, great feedback on engine monitoring as well. Definitely recommend.

Michael M
June 9, 2022

Good unit. Simple install. The CAN bus makes add ons very easy to install.

Brad B Verified Purchase


January 11, 2022

A great replacement for steam gages. It also has a good simple navigation to the airport capability. Perfect VFR i strument.

Glenn S Verified Purchase


July 29, 2021


Please note,'s personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Can the MGL Extreme Mini EFIS be used as a backup for Glass Panel installations with backup airspeed, attitude & altimeter requirements?

Yes for experimental aircraft. No, for certified aircraft as the MGL Mini Extreme is not a TSO'd unit.

Q: Can the MGL Extreme Mini EFIS be mounted horizontally or at 40 degree angle?

Per the supplier: CANNOT BE MOUNTED horizontally but will be okay tilted at the 40 degree. Will not be affected like that.

Q: Can the MGL Extreme Mini EFIS supply altitude and ES data to a Mode S transponder?

No, the extreme mini can provide mode C data but mode s is not available.

Q: Can the MGL Extreme Mini EFIS GPS unit talk (via wifi) to iPad/tablets running software such as Navigation Pro like the Dynon D2?

Per the supplier: Not at this time.

Q: Does the MGL Mini EFIS come ready for engine information or are additional modules needed to equip the system?

The RDAC XF module is required along with probes for the functions you wish to monitor.

Q: What OAT sensor should I order for this MGL Extreme Mini EFIS?

The OAT sensor is included with this unit.

Q: I need to replace the OEM vacuum attitude indicator & Drum style heading in my 1960 CE172. Is this unit ok for certification? And does it have a remote compass [magnetometer?]

The MGL Mini Extreme cannot be used in your certified aircraft as it is not a TSO'd unit. The Mini does have a magnetometer which is sold separately.

Q: Experimental or Certificated (STC) airplanes?

The MGL Mini Extreme is for experimental aircraft only.

Q: Is the power harness and connection plugs/harnesses included with the MGL Extreme Mini EFIS?

No, the harness is not provided. one must be made according to the install manual.

Q: Do I understand correctly that this is JUST a display only and that to use it Ill need to also purchase a magnetometer, an attitude sensor and an RDAC?

Yes, that is correct.