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Legit Avionics | MGL Avionics US Dealer
Please allow extra days for delivery and support. Order and support inquiry volume are currently high due to AirVenture 2026.
We are moving into a new office space. Please bear with us as communication and order fulfilment may be limited.
Please allow extra days for delivery and support. Order and support inquiry volume are currently high due to AirVenture 2026.
The MGL iEFIS 10.4" Challenger Lite is a color EFIS with touch screen and built-in AHRS. The new "native" G4 version also features built-in user screen design and pneumatic AOA sensing.
Operating without an iBOX unit, the iEFIS Lite loses ARINC, analog NAV outputs, and dual power supply inputs. For more information on Lite vs Full iBOX systems, see the "Differences between iEFIS and iEFIS Lite" on page 3 of the iEFIS Lite User and Installation Manual.
An iEFIS extender can be used to connect to more external serial devices.
iEFIS Lite contains an internal AHRS, but an external SP-7 or SP-9 AHRS is highly recommended for best results (mounting near center of rotation and isolation from vibrations). An SP-6 or SP-9 is required for magnetic heading.
iEFIS Lite User and Installation Manual (legacy, but much applies to G4)
See Rob Holland's MGL panel showcased below. RIP RH
See an overview of iEFIS architecture

iEFIS Challenger Lite 10.4"

