Use of a fuel flow sender is highly recommended as it enables the use of the many features incorporated in Stratomaster systems which depend on fuel flow data. A fuel flow sender can be used with the Stratomaster Flight, Flight 2, Extreme, Ultra, Enigma, Voyager and Odyssey instrument systems. The MGL Avionics sender shown below has proven to be reliable and to work very well, when installed correctly.

We include a short installation guide with the sender which should ensure that you do not have any problems with its fitment. You can also download the fuel flow sender installation notes together with a detailed technical data sheet by clicking on the links below:

Fuel Flow Sender Installation Notes & Data Sheet -1 (pdf file)

Fuel Flow Sender Installation Notes -2 (pdf file)

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Fuel level senders can be connected to the Stratomaster Flight, Extreme, Ultra, Enigma, Voyager and Odyssey instrument systems. The fuel flow sender kit shown below is a typical after-market type available from many auto spares shops (Repco, AutoPro and the like). MGL Avionics (the manufacturers of Stratomaster systems) have had very good results with the senders available from VDO and recommend these - Part Number 220 003 is generally suitable. However, you may wish to contact your local VDO representative for a selection suitable for your fuel tank shape and size.

Stratomaster instruments support any resistive type level sender, however, MGL Avionics does not recommend capacitive probes as readings vary depending on the fuel type used.

VDO 220 003, 004, 005, Installation Guide (pdf file)

The probe shown (below) is our standard water temperature probe. It uses a thread (8 x 1 metric fine pitch) suitable for Rotax water cooled engines such as the 582. It is an inexpensive automotive type. This probe can be used with Stratomaster Flight, Extreme, Ultra, Enigma, Voyager and Odyssey instrument systems.

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For applications where accuracy is paramount, MGL Avionics also offer a precision water temperature probe. This probe (shown below) is recommended where exact water and/or oil temperature readings are required. It is based on a brass housing with a thread suitable for Rotax water/oil cooled engines. Whilst this probe is more expensive than a standard automotive probe, it has two advantages: First, it is isolated electrically from the engine, which is helpful in some installations; and second, it is much more accurate with a maximum installed error reading of less than 2 degrees over the full temperature range.

You can download the technical data sheet of the sensor used in the Precision Temperature Probe by clicking on the link below. Installation instructions for the probe can be downloaded by clicking on the second link below:

Precision Temperature Sensor data sheet (pdf file)

Installing the Precision Temperature probe (pdf file)

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Shown below is MGL Avionics high quality 316 stainless steel EGT probe. These probes are designed for maximum temperatures of 1200 degrees C (2000 degrees F) and are well suited for turbocharged high performance engines. The cable used is a glass fibre insulated, stainless steel armoured cable. The connection to the probe is protected by means of a generous spring strain relief.

These MGL probes are also supplied with a clamp kit (see below) for installations not having a provision (ie. threaded lugs on the manifold) for these probes. In this case a small hole the same size as the probe tip is drilled into the exhaust manifold and the probe inserted and held in place with the clamp kit.

The clamp kit includes a drilled stainless steel band and adjuster (also stainless steel). Two 8x1 metric fine pitch brass half nuts are included to; hold the probe in place; and allow adjustment of distance which the probe projects into the pipe.

Please remember to specify the pipe clamp size (diameter to be clamped) when ordering.

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Currently we offer four different versions of our CHT probes. These are all "K-type" thermocouples and they come in sizes 10mm, 12mm, 14mm and 18mm. The sizes refer to the thread diameter of the spark plug the probes are used on. Most automotive engines use 14mm plugs, the Jabiru engine and Rotax 912/914 use 12mm plugs. The big Lycomings and Continentals use 18mm plugs. Some motorbike engines use small 10mm plugs.

The probes are supplied with 90 cm of Teflon insulated cable, heat resistant to 300 degrees C. The probes are designed to be tough and so have a steel cable sleeve connection with a generous spring strain relief.

See senders fitted ? then click the link below:

CHT sender (Jabiru 2200A, No 2105)

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High speed / High power transorb (33V)

We recommended that this device be used to protect any electronic devices connected to an aircraft's power supply. The device works by 'clamping' the voltage to a maximum of 33V. It can do this in a matter of a few billionth of a second and it can, for a short time, withstand a very large amount of power.

We recommend that a single device (transorb) is fitted to the incoming power to the aircraft's instrument panel, following a fuse or circuit breaker. This device can protect any instrument including intercoms and radios. Detailed information on how the Transorb can be incorporated into your aircraft wiring system can be downloaded by clicking on the link below (an A4 sheet with the same information is also shipped with each Transorb).

Download the Transorb placement information sheet by clicking on the link below:

Transorb power supply surge protection placement info sheet (pdf file)

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To guard against loss of power to your Stratomaster instrument system you may wish to make up a simple emergency power supply back up.

Our Enigma systems includes provision for a power backup battery with built in float charging circuit so that all that is needed is a small external sealed lead acid cell battery of maybe 1.3 AH to 2 AH.

For all other Stratomaster instrument systems a battery back system can also be fitted. An information sheet with directions on how to do that can be downloaded below.

Download the Emergency Power Supply information sheet by clicking on the link below:

Emergency Power Supply info sheet (pdf file)

The Airtalk PC cable is included in the log download key package. Also available separately, it is used for the direct connection of a PC (for example laptop computer) to your Extreme or Ultra Horizon XL System.

You can use it to download flight log information, connect to a flight recording program or you can use it to upload new software into your system.

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This small device easily fits into your pocket. It is used to transfer your instruments flight log details to our Flight log program (free download below). It can store the full flight log up to 240 flights. All you have to do is, every now and then, connect the key to your instrument to update any new flights done since the last time the key was used and then transfer the information from the key to your Flight log program on your PC (Windows operating system required).

The Airtalk to PC interface cable is included. The Flight log software is not included - it needs to be downloaded below from our web site.

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This free download can be used with the Stratomaster Extreme and Ultra Horizon XL. The program can be 'connected' to the instrument using an Airtalk to PC cable (see above) or it can be used with the Log Download Key (see above).

The program maintains your flight log and you can print it, add comments to a flight and it includes a handy flight time calculator which can add the total times between two dates.

The program requires an available serial port on your PC. It will work on all 32 bit versions of Windows. The current Flight Log Program software is version: 1.3

Download the latest version of the Flight Log Program by clicking on the link below:

Stratomaster Flight Log Program