MGL Avionics Vega TC-4 CHT / EGT Ex-Demo

MGL Avionics Vega TC-4 CHT / EGT Ex-Demo
Our Price:  £199.00(Inc. 20% VAT)(£165.83 Exc. VAT)

Model:  V-TC-4R
Brand:  MGL Avionics

The Vega TC-4 EGT / CHT display - Ex Demo

Ex-demo TC-4 supplied with new pre-wired plugs, mounting hardware and updated to the latest firmware. This TC-4 has a few marks around the mounting holes which will be invisible when mounted in a circular panel hole (see photo below).

The image below shows the actual instrument set up to display 4 CHT channels, currently reading 12 degrees C. It can just as easily be set up to display just EGT or a mix of CHT and EGT. Sold with a 6 month guarantee.  Save £60 compared to a new TC-4. 


The TC-4 is a 2 1/4" Sunlight readable 4 channel thermocouple colour display instrument.

Instrument can be configured for 5 different temperature display screens. The display can be configured to group EGTs and CHTs to common settings or each thermocouple channel can be independently displayed with individual programmable high alarm and probe type. The TC-4 also has a trend graph and maximum values display screen.

The TC-4’s high accuracy is due to its built in thermocouple linearization curves and cold junction compensation techniques. Temperature probes can be common J, K or E type thermocouple probes as used in CHT and EGT senders. Temperatures can be displayed in degrees Celsius or degrees Fahrenheit from -100ºC to 1200ºC (-148ºF to 2192ºF).

The TC-4 also features a built in engine leaning facility which allows the pilot to optimize the fuel mixture according to peak EGT temperatures as well as a cruise mode facility to provide instant identification of changing EGT/CHT trends.

The TC-4 can also be interfaced via the CAN bus to an external RDAC unit (Remote Data Acquisition Unit). This allows for easier installation as the RDAC unit is normally mounted in the engine compartment.

For more information download the manual. 



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. 

Download a pdf drawing with Vega dimensions: CLICK HERE


  • Large 1.8” high resolution , sunlight readable colour LCD display

  • 5 different temperature display screens

  • Supports J, K and E type thermocouple probes

  • Temperatures can be displayed in ºC or ºF from -100ºC to 1200ºC (-148ºF to 2192ºF)

  • High accuracy: Built in thermocouple linearization curves and cold junction compensation

  • Records maximum temperatures reached for each channel

  • Includes a trend graph display of each thermocouple channel

  • Engine leaning function according to peak EGT temperatures

  • Engine cruise mode to instantly identify changing EGT/CHT trends

  • External RDAC (Remote Data Acquisition Computer) interfacing via the CAN bus

  • Standard 2 1/4” aircraft enclosure (can be front or rear mounted)

  • The LED back light can automatically adjust to the ambient light, or it can be manually adjusted in the menu system

  • Rotary control plus 2 independent buttons for easy menu navigation and user input

  • An external output activates when a high alarm condition has been reached

  • Wide input supply voltage range of 8 to 30V DC with built in voltage reversal and over voltage protection for harsh electrical environments

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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 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.