MGL Avionics Xtreme G2 EMS engine monitor

MGL Avionics Xtreme G2 EMS engine monitor
Our Price:  £750.00(Inc. 20% VAT)(£625.00 Exc. VAT)
SPECIAL OFFER:  add  RDAC-XG for 199 (normally 249)
SPECIAL OFFER:  add  RDAC-XF for 260 (normally 360
SPECIAL OFFER:  add  RDAC-XF-MAP for 390 (normally 450)

Model:  XtEMS
Brand:  MGL Avionics

MGL XTreme EMS Generation 2 is a very comprehensive engine display and monitor. 

This low cost unit is based on a 4.2" sunlight readable, wide viewing angle, high resolution LCD display with integrated SD card reader, function buttons, and a rotary control.

It is able to connect to existing engine sensors (or add additional sensors) via a range of MGL RDAC modules, just pick the one that is suitable for your engine monitoring needs. The RDAC is mounted in the engine bay which makes it easy to connect all the sensors.  Data is then conducted by a single twisted wire pair through the firewall to the XTreme EMS. 

The XTreme is designed to fit a standard 3.1/8" / 80mm round instrument hole. The body is located off-centre allowing the unit to replace instruments on the right side of a standard 6-pack configuration or any other location that currently occupies two instruments.

Due to the light weight and very low mounting depth, no complicated mounting brackets or trays are needed. Power use is low and it will operate from 8 V to around 30V. 

Download the XTreme EMS manual

Download dimensions for XTreme

We ship worldwide. At checkout you can choose from low cost airmail options and express courier services like DHL or FedEx.

Within the UK we normally dispatch using Royal Mail or DHL. You choose the level of service at checkout.

VAT sales tax (20%) is included in the price displayed on the website. This tax applies to UK customers and EU customers. It will continue to apply to customers in the 27 EU member states from 1 January 2021. This is because we are located in Northern Ireland. The Northern Ireland Protocol, agreed by the EU to facilitate cross border trade with the Irish Republic after Brexit, also applies to the rest of the EU.  We continue to charge the UK rate of vat to customers in the 27 EU member states and there is no further tax to pay upon delivery. We can continue to zero rate the vat for EU business customers who enter their vat number at checkout. 

Customers outside the EU do not pay vat and the tax will be removed at checkout. Local import taxes may apply - check with your local authority.

Currency. All products are priced in Pound Sterling (GBP, £). Using the "Currency" tab you can change the displayed currency to either Euro (EUR, €) or US Dollar (USD, $). This is an indicative exchange rate, automatically updated daily and is based upon the prevailing bank rate. The price you see may be displayed in USD or EUR but payment processing will be conducted in GBP. This means that your card issuer will apply their usual exchange rate, which is likely to be different from our indicative rate. 

What do you get for my money ?

You get the XTreme instrument, wiring harness, OAT probe, and 2Gb SD card. 

You will need to choose a suitable RDAC engine module and mount it in the engine bay, usually on the firewall for easy access. You will probably want to monitor CHTs, EGTs, oil T&P, RPM, Fuel Flow, Fuel Level, and possibly even Coolant Temp and manifold pressure. You can monitor and display up to 6 cylinders. There are a selection of RDAC engine modules available. The RDAC-XG for most 4 cylinder engines including the Rotax 91X series. The RDAC-XF adds more inputs and can cater for a 6 cylinder engine and if you want manifold pressure, the RDAC-XF-MAP adds that function to the basic RDAC-XF. We also have specific RDAC modules for the Rotax iS injected engine and the UL Power range of engines, these connect to the engine ECU  by CAN bus. 
Whichever RDAC you choose, it simply connects to the EFIS via a single twin cable (CAN bus), so no bulky wiring harness to accommodate through the firewall, and hooking it up to the engine is easy because you are able to mount it in a convenient position. The RDAC and XTreme will interface to virtually all senders fitted to any engine, and we can supply the additional senders you may want. 
The SD card is used to record "black box" information and a flight log. The data can be downloaded later from the card and displayed on a PC. The SD card is also used for firmware updates, which are free.

The XTreme EMS will continually monitor engine parameters and provide clear warnings should anything stray from the user's pre-set levels. The LAA's John Brownlow, writing about the XTreme after evaluating the Gropo Trail, in the official flight test report, wrote the following: 

"MGL Avionics EFIS Display

The MGL Avionics EFIS displayed a very clear visual warning in red, in the screen centre as low indicated airspeeds were approached. This was the first EFIS display used by the test pilot that gave such a dominant warning. The warning was assessed as a most useful safety benefit."
Powerful ARM processor

4.3” high resolution 
1000cd/m2 sunlight readable colour display

LED back light (brightness can be adjusted for low light flying conditions)

Fits standard 3 1/8” / 80mm aircraft instrument panel hole

SD Card interface for data recording, user splash screens, checklists, graphic information pages, firmware upgrades etc

Male barbed 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

Support for 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
Engine Monitor
Engine Monitor: Note (1)

1x Engine RPM

1x Rotor RPM

1x Manifold pressure

1x Oil pressure input

1x Oil temperature input

2x Auxiliary analogue channels (Pressure/Temperature/Current)

12 Channel EGT/CHT display

2x Fuel Flow

2x Fuel Level

Programmable maintenance timer for scheduled routine engine maintenance

Engine display screens are automatically configured to optimize screen space depending on what

parameters are been displayed

Settable Hobbs meter (password protected)

Fuel range / endurance based on TAS or GPS ground speed

Supply Voltage display

Current monitor to measure charge/discharge currents. Note (2)

Engine leaning feature


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 engine data to SD card. 

Includes a 1000 entry automatic flight log (Records start date & time, flight time, pilot number, Hobbs time,

maintenance time,

User configurable start up (Splash) screen

Unlimited configurable checklists

Unlimited configurable graphic information displays

Dual menu system for quick item selection and user setups

Sunrise/Sunset calculator

Firmware upgrades via SD Card



(1) Requires optional MGL Avionics RDAC unit

(2) Requires optional MGL Avionics current monitor sensor


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  EU Customers - NO TAX or CHARGES on delivery 

We are located in Northern Ireland and will continue to export under EU Customs Rules (unlike companies in the rest of the UK). Nothing changes because of Brexit. You continue to pay the vat inclusive prices on our website and you will not pay any tax or tariffs upon delivery. Businesses in the EU can enter their vat number at checkout and we will zero rate the sale. 

And of course, there is no change for our customers throughout the United Kingdom.