Our Highly Innovative 3.5″ Instrument Range

Our very successful range of 2.25 inch Infinity Singles instrument s, have a range of larger siblings – the 3.5 inch Velocity Singles.

The Velocity Singles instrument range is designed to fit the standard 3.5″ instrument cutout. These instruments are based on our 2.25″ Infinity Singles with some slight variations. The Velocity range have:

  • a large custom made backlit graphic LCD display with adjustable contrast;
  • wide input supply voltage range of 8 to 30V DC with built in voltage reversal and over voltage protection for harsh electrical environments;
  • light weight design; and
  • a 1 year limited warranty.

The 3.5″ Velocity Singles ranges (like their smaller Infinity siblings) aren’t really singles at all ! Many integrate up to three instruments in the one system – all displayed at the one time, usually in both numerical and bar graph format.

Moreover, most Velocity’s are able to display all parameters or just one. For example, the Altimeter/VSI displays either as an altimeter or as a combo showing both.

Each instrument is highly configurable. For example, the altimeter(s) support relative mode (altitude relative to some other altitude – for example your airfield) or msl mode (above sea level). Units can be feet or metres (ft/min or m/s for the VSI).

The Velocity Single Engine Monitoring Systems are even more remarkable instruments. Imagine – a complete system for engine monitoring in one 3.5 ” instrument!- see the Flight 2 below.

Moreover, you can also choose the TC-3 to monitor up to 12 thermocouple channels (any combination of EGT & CHT up to a total of 12 channels) – so you are able to monitor in one 3.5′ instrument all the CHT/EGT’s on a 6 cylinder engine. Plus, you have an engine leaning facility and alarm functions for all CHT & EGT’s! Other engine monitoring options are also available in the Velocity range.

The quality of these very powerful instruments also leads the industry – with custom made ABS plastic housings and panels high quality graphics displays with back lighting, the very latest ATMega RISC processors and the utilisation of high quality components – for e.g., the Altimeter/VSI uses the most sensitive (and expensive) pressure sender available.

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Instruments in the Velocity Singles range:

 

Flight 2 – Complete Primary Flight System:

The Flight 2 is an ultra compact, complete primary flight system intended as main flight instrument on smaller aircraft or as backup / secondary flightinstrument.

This 3.5” system provides many functions from Altimeter, Airspeed to Fuel level/flow, Engine RPM and many secondary functions, including an automatic flight log.

The Flight 2 ‘s light weight, small size and high level of functionality in addition to excellent value for money make it an ideal choice for many applications.

The Flight 2 makes an ideal companion to the Stratomaster E1 universal engine monitor (see below) for a compact, low cost, yet highly functional and complete cockpit solution.

complete listing of the Flight 2’s functions:
  • Altimeter (–700ft (-213m) to 30 000ft (9144m)).Altitude can be displayed in feet or meters. Local pressure can be set in mbar or in “Hg.
  • Airspeed indicator (14 knots to 217 knots).
  • Altitude compensated digital VSI indicator (+/-20 ft/min to +/-10 000 ft/min) 4. A logarithmic analog VSI indicator (+-2000 ft/min range). 16 VSI can be displayed in ft/min or m/s.
  • Automatic flight duration timer
  • Fuel flow (optional FF sender). FF can be displayed in litres or gallons.
  • Fuel level calculated from fuel flow or from a fuel level sender
  • Multi point f/level sender calibration for odd shaped tanks & nonlinear f/level senders
  • Current range estimate (range at current speed & fuel burn). Can be displayed in statute/nautical mile or in kilometers
  • Fuel bingo estimate (time until tank empty)
  • Universal RPM counter (0 to 20000RPM)
  • Real Time Clock (RTC) for local time and flight log use
  • Settable Hobbs meter (password protected)
  • Programmable Maintenance timer for scheduled routine engine maintenance
  • OAT (Outside air temperature) display using an external sensor
  • Supply Voltage display
  • Density altimeter
  • Barometer (actual local pressure)
  • True airspeed (TAS display)
  • Fuel range based on TAS, IAS or GPS-NMEA input
  • Fuel endurance based on TAS, IAS or GPS-NMEA input
  • Stopwatch
  • Glide and climb ratio indicator
  • Alarm on low/high RPM, low/high airspeed, L/H supply V & low fuel level
  • Records maximum values reached in permanent memory
  • Includes a 24 entry automatic flight log
  • Standard 3.5″ aircraft enclosure (3 1/8” cut-out) front or rear mounted
  • Rotary control + 2 buttons for easy menu navigation & user input
  • External alarm output + red LED illuminates when alarm activates
  • Large backlit graphic LCD with adjustable contrast
Download the manual for detailed information by clicking on the link below:

Flight 2 Manual

You will very surprised at how little it costs to get so much!

Altimeter (including VSI & ambient temp. sender) and Encoding Altimeters:

The Velocity series altimeter is available in two versions. A standard version and an encoding version – allowing connection to a transponder (and/or compatible GPS system).

Standard Altimeter 3.5″ (ALT- 3)

The ALT-3 is a 3.5″ instrument that contains a precision altimeter and a wide range vertical speed indicator. The altimeter conforms to ANSI standard atmosphere rules from –700 ft up to a maximum of 30 000 ft. The altimeter can display altitude in feet or meters, local pressure can be set in millibars or inches of mercury

The onboard VSI indicator is altitude compensated and can be displayed in either feet/minute (ft/min) or meters/second (m/s). It also offers a digital readout with a wide range from +/-20 ft/min to as high as +/-10 000 ft/min, it also offers a logarithmic analog display with a +/-2000 ft range. The VSI can be calibrated by the user once the instrument has been installed in the aircraft.

In addition, the ALT-3 provides an OAT sender which is used in determining the density altitude of the aircraft. The ALT-3 can also be used to measure relative altitude and it has a facility for the pilot to enter a reference altitude and deviation band that has to be kept.

Major features list:
  • Precision altimeter from –700 ft up to a maximum of 30 000 ft (-213m to 9144m)

  • The altimeter can display altitude in feet or meters, local pressure can be set in millibars or inches of mercury

  • Contains a wide range VSI indicator from +/-20 ft/min to as high as +/-10 000 ft/min

  • VSI units can be in feet/minute (ft/min) or in meters/second (m/s)

  • Records the maximum and minimum OAT (outside air temperature) and maximum altitude reached in permanent memory

  • Records maximum and minimum OAT in temporary memory since instrument power up

Download the manual for detailed information by clicking on the link below:

Altitude Encoding Aviation Altimeter 3.5″ (ALT- 4) [with transponder compatible Serial RS232 & Parallel Gillham code output]

The ALT-4 is a 3.5” instrument that contains a precisionencoding altimeter and a wide range vertical speed indicator. The altimeter conforms to ANSI standard atmosphere rules from –700 ft up to a maximum of 30 000 ft. The altimeter can display altitude in feet or meters and local pressure can be set in millibars or inches of mercury.

The ALT-4 also provides a transponder compatible Serial RS232 and parallel gillham code output.

The onboard VSI indicator is altitude compensated and can be displayed in either feet/minute (ft/min) or meters/second (m/s). It also offers a digital readout with a wide range from +/-20 ft/min to as high as +/-10 000 ft/min, it also offers a logarithmic analog display with a +/-2000 ft range. The VSI can be calibrated by the user once the instrument has been installed in the aircraft.

In addition,the ALT-4 provides an OAT sender which is used in determining the density altitude of the aircraft. The ALT-4 can also be used to measure relative altitude and it has a facility for the pilot to enter a reference altitude and deviation band that has to be kept.

Major features list:
  • Precision altimeter from –700 ft up to a maximum of 30 000 ft (-213m to 9144m)

  • Provides a transponder compatible Serial RS232 and parallel gillham code output.

  • Built in encoder test functions

  • The altimeter can display altitude in feet or meters, local pressure can be set in millibars or inches of mercury

  • Contains a wide range VSI indicator from +/-20 ft/min to as high as +/-10 000 ft/min

  • VSI units can be in feet/minute (ft/min) or in meters/second (m/s)

  • Records the maximum and minimum OAT (outside air temperature) and maximum altitude reached in permanent memory

  • Records maximum and minimum OAT in temporary memory since instrument power up

Download the manual for detailed information by clicking on the link below:

ALT-4 Manual 

Air Speed Indicator 3.5″ (ASI-3)

This is a very good ASI, particularly when compared with the traditional mechanical alternatives. Most mechanical ASI’s do very poorly at low airspeeds due to the tiny pressures available from the pitot tubes. With our silicon sensors we have achieved good sensitivity at the low end, whilst still ensuring excellent linearity over the whole speed range. This simply cannot be achieved with a mechanical solution.

The ASI-3 has a wide speed range of 14 knots to 217 knots with speed displayed in both digital and analogue form (bar graph – that can be configured for scale). Markers (‘bugs’) for Vs (stall speed, dirty) Vf (maximum flap speed) Vno (upper limit normal operating speed or maximum manoeuvring speed) and Vne are programmable. Speed can be selected to display in knots, km/h or mph.

It also incorporates several additional unique and very useful features:
  • An automatic flight log that stores the duration of the last twenty four flights;
  • A duration of current flight since take-off display;
  • Maximum airspeed is recorded in permanent memory; and
  • An air-distance trip counter (re-settable).
  • The ASI-3 has a standard static port.
Major features list:
  • Measure airspeed from 14 knots to 217 knots and is well suited to slow aircraft due to very good sensitivity and linearity at low air speeds
  • Includes a 24 entry automatic flight log
  • Includes an air-distance trip counter and a flight timer
  • Airspeed units can be set to miles per hour (mph), kilometer per hour (km/h) or nautical miles per hour (knots)
  • Contains a programmable low/high airspeed alarm
  • Records maximum airspeed reached in permanent memory
  • Analog bargraph indicating airspeed with Vs, Vf, Vno & Vne markers
  • 3.5″ aircraft enclosure to fit standard cut-out (front or rear mounted)
  • Rotary control plus 2 buttons for easy menu navigation & user input
  • External alarm output as well as a red LED illuminates when the alarm has been activated
Download the manual for detailed information by clicking on the link below:

ASI-3 Manual

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Altimeter and Air Speed Indicator Combo 3.5″ (ASX-2)

The ASX-2 altimeter/airspeed combo is a 3.5” instrument based on a precision altimeter and a wide range, sensitive airspeed indicator. The altimeter conforms to ANSI standard atmosphere rules from –700 ft up to a maximum of 30 000 ft.

The altimeter includes an encoding serial output that, when used in combination with MGL Avionics CNV-AT, provides a parallel Gillham code interface for transponders. The altimeter can display altitude in feet or meters. Local pressure can be set in millibars or inches of Mercury.

The airspeed indicator can show air speeds from 14 to 217 knots and is well suited for use in slow aircraft due to very good sensitivity and linearity at low air speeds. The airspeed indicator as well as altimeter can interface to a static port and the airspeed indicator is based on a standard aviation pitot tube.

The airspeed indicator can be set to indicate speeds in statute miles per hour (mph), kilometers per hour (km/h) or nautical miles per hour (knots) with the air-distance being displayed in corresponding units. The airspeed sensitivity can be calibrated by the user to cater for errors caused by pitot tube placement. The ASX-2 also outputs airspeed information via the airtalk protocol for interfacing to the Infinity FF-1/Velocity FF-3 (fuel flow computer) and the SP-X (AHRS) instruments.

In addition the ASX-2 provides a 24 entry automatic flight log that stores the duration of each of the last 24 flights, an air-distance trip counter and a current flight timer. The ASX-2 is the ideal instrument for installations where panel space is limited.

Major features list:
  • Precision altimeter from –700 ft up to a maximum of 30 000 ft (-213m to 9144m)

  • Provides a parallel Gillham code interface for transponders when used in combination with the MGL Avionics CNV-AT

  • The altimeter can display altitude in feet or meters. Local pressure can be set in millibars or inches of Mercury

  • Airspeed ranges from 16 to 250mph and is well suited to slow aircraft due to very good sensitivity and linearity at low air speeds. Airspeed can be displayed as IAS or a calculation based TAS

  • Includes a 24 entry automatic flight log

  • Includes an air-distance trip counter and a flight timer

  • Airspeed units can be in miles per hour (mph), kilometer per hour (km/h) or nautical miles per hour (knots)

  • Contains a programmable low/high airspeed alarm

  • Records maximum airspeed and altitude reached in permanent memory

Download the manual for detailed information by clicking on the link below:

ASX-2 Manual

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Fuel Management System 3.5″ (FF-3) for single or dual tanks

This very powerful unit fuel management computer provides very efficient monitoring of fuel related information for either single or dual fuel tanksonboard small aircraft and related applications.

The FF-3 unit can connect to one or two fuel flow senders, one or two fuel level senders or both. Full functionality is available with both senders or only with a fuel flow sender using calculated fuel levels based on fuel usage. Differential fuel flow calculations are also supported for fuel return systems.

Fuel injector systems are also supported. Standard automotive fuel level senders can be used, even with odd shaped tanks due to a comprehensive, multi-point calibration system.

Most fuel flow senders can be used and the K-factor of the sender can be entered into the system for simple calibration. MGL Avionics supplies a lightweight dual range fuel flow sender that is ideally suited for the FF-3.

In addition, the FF-3 can use the airspeed (via the airtalk cable connected to a Infinity ASI-1/ASX-1, Velocity ASI-3/ASX-2 indicator) or actual ground speed (by using the optional GPS NMEA interface cable connected to a RS232 NMEA enabled GPS receiver) to determine fuel range.

Major features list:
  • Advanced fuel computer with 17 different modes of operation

  • Supports single or dual fuel tanks

  • The FF-3 can connect to one or two fuel flow senders, fuel level senders or fuel injectors

  • Differential fuel flow calculations are also supported for fuel return systems

  • The FF-3 has the ability to connect to an ASI-1/ASX-1 or a NMEA enabled GPS receiver for range based calculations. It can also accept a manually entered estimate cruising speed if an ASX-1/GPS is not available.

  • Standard automotive fuel level senders can be used, even with odd shaped tanks due to a comprehensive, multi-point calibration system

  • Bilingual support (English and French)
Download the manual for detailed information by clicking on the link below:
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

Fuel Flow Sender Installation Notes -2

An alternative (additional cost ) to the MGL fuel flow sender (supplied standard with the FF-3) is the USA made alloy bodied Floscan transducer range. This more expensive transducer usesstandard AN fittings and is a popular choice for larger aircraft .

The Floscan model 201-A6 is the standard transducer stocked and has a flow range (gasoline) of 0.3 – 30 GPH (1.4 to 113.5 litres/hour).

Details of the floscan transducer can be viewed by clicking on the link to the manual below.

Floscan Manual

GPS NMEA Interface Cable

The Infinity FF-1 / Velocity FF-3 and Flight-2 has the ability to be connected to a NMEA enabled RS232 GPS receiver to allow the use of actual ground speed in determining the fuel range (See the relevant instrument manual for more information).

The NMEA enabled RS232 GPS receiver must be able to output a GPRMC message (The Recommended Minimum sentence defined by NMEA for GPS/Transit system data).

GPS NMEA Interface Cable manual 

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Rev Counter/Hobbs Meter + Flight log 3.5″ (RV-3)

The RV-3 is not just a rev counter it is everything a rev counter should be!

The RV-3 universal engine RPM and rotor RPM unit is a 3.5” instrument providing a universal RPM counter that can be adapted to a variety of roles. Typical uses are engine RPM displays or helicopter and gyroplane rotor RPM displays.

The RV-3 displays RPM in a digital readout as well as in a scalable analog bar graph display. In addition the RV-3 provides a 24 entry automatic flight log that stores the duration of each of the last 24 flights. It also has a Hobbs meter (can be set to the current engine time) which is password protected, an engine running timer/flight timer and a programmable maintenance timer to schedule routine engine maintenance.

The RV-3 also features a programmable RPM low/high alarm as well as it records the maximum RPM reached in permanent memory.

Major features list:
  • Measures RPM from 0 to 20 000 RPM

  • Includes a 24 entry automatic flight log

  • Includes a settable Hobbs meter (password protected) and an engine running timer/flight timer

  • Contains a programmable low / high RPM alarm

  • Contains a programmable maintenance timer for scheduled routine engine maintenance

  • Records maximum RPM reached in permanent memory

  • Scalable analog bar graph indicating RPM

Download the manual for detailed information by clicking on the link below:

RV-3 Manual

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Dual Rotor / Engine Tachometer + Hobbs + Flight log 3.5″ (Rotor-1)

The Rotor-1 dual rotor / engine tachometer is a 3.5” instrument providing two universal RPM inputs that is primarily intended to measure rotor and engine RPM. Typical uses are rotor / engine RPM displays for helicopters and gyroplanes.

The Rotor-1 displays rotor and engine RPM in a digital readout as well as in a traditional scalable analogue needle display. In addition the Rotor-1 provides a 24 entry automatic flight log that stores the duration of each of the last 24 flights. It also has a Hobbs meter (can be set to the current engine time) which is password protected, an engine running timer/flight timer and a programmable maintenance timer to schedule routine engine maintenance.

The Rotor-1 also features a programmable rotor and engine RPM low / high alarm as well as it records the maximum RPM values reached in permanent memory.

Major features list:
  • Dual rotor / engine tachometer

  • Dual digital readouts or a traditional scalable analogue needle display

  • Includes a 24 entry automatic flight log

  • Includes a settable Hobbs meter (password protected) and an engine running timer/flight timer

  • Contains a programmable engine and rotor low / high RPM alarm

  • Contains a programmable maintenance timer for scheduled routine engine maintenance

  • Records maximum rotor and engine RPM reached in permanent memory

Rotor-1 Manual

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Temperature & Pressure 3.5″ (TP-2)

The TP-2 is a 3.5″ dual channel temperature/pressure gauge with universal inputs that can interface to many sensors such as oil temperature, coolant temperature, oil pressure, fuel pressure, manifold pressure, boost pressure and many more.

The TP-2 gauge can be setup for a single, dual or combination temperature / pressure display.

Temperature can be measured using standard automotive resistive senders (e.g. VDO) as well as the MGL Avionics precision LM335 semiconductor sensor. Pressure can be measured using standard automotive resistive senders (e.g. VDO), Rotax 4-20mA senders as well as 0-5V output pressure senders (e.g. UMA). In addition, the temperature and pressure inputs can be programmed to a user defined curve for custom senders.

Both the temperature and pressure readings have a programmable low and high alarm. This results in a contact closure that is typically used to switch a warning lamp on. The TP-2 also records the maximum temperature and pressure values reached in permanent memory.

Major features list:
  • Dual channel universal input temperature and pressure gauge

  • Temperature can be measured using standard automotive resistive senders (e.g. VDO) as well as the MGL Avionics precision LM335 semiconductor sensor

  • Pressure can be measured using standard automotive resistive senders (e.g. VDO), Rotax 4-20mA senders as well as 0-5V output pressure senders (e.g. UMA)

  • Temperature and pressure inputs can be programmed to a user defined curve for custom senders

  • Can be setup for a single, dual or combination temperature / pressure display.

  • Both temperature and pressure readings have a programmable low and high alarm

  • Records maximum temperature and pressure reached in permanent memory

  • Supports Rotax 4-20 mA pressure sender as used in 912/914 engines

Download the manual for detailed information by clicking on the link below:

Aviation G-Force Meter 3.5″ (GF-2), tilt compensated, dual range:

The GF-2 is a 3.5″ G-force meter capable of measuring G-forces exerted in an aircraft up to +-10g. The forces acting on the aircraft are easily seen on a large backlit graphic display both numerically and graphically.

The GF-2 also has the facility to record maximum G-forces obtained in permanent memory as well as a temporary memory to record G-forces reached from the time of power up. It also features 2 independent cycle counters to capture the amount of times a preset force has been exceeded.

The GF-2 is able to measure G-forces even if the instrument is not mounted exactly on the vertical axis of the aircraft.

Major features list:
  • Typical, accurate range up to 20g (from -10g to +10g)

  • Records maximum measured forces in permanent memory (both positive and negative G-forces), with password protected reset facility

  • Two independent cycle counters record the number of times a preset force has been exceeded

  • Temporary memory for maximum positive and negative G-forces encountered (typically during a flight)

  • Clear, large readable G-force numerical value (10g positive and negative)

  • Scalable graphic analog display of force acting on the aircraft

  • 2 axis design of the instrument allows mounting in sloped panels (i.e. panel not exactly vertical)

  • Quick calibrations function for operation at temperature extremes using Earth’s gravity

  • Bilingual support (English or French)

Download the manual for detailed information by clicking on the link below:

Manifold Pressure + RPM (3.5″ MAP-2)

The MAP-2 is a precision pressure gauge which can measure pressures in the range from 0.25 bars (3.6 PSI) to 2.5 bars (36.2 PSI). Pressure can bedisplayed in units of millibar, bar, PSI, Kg/cm2, inches of mercury, millimetres of mercury, kilo pascal (KPa) or atmospheres.

Pressure can also be displayed in an analog bar graph form with user selectable sensitivity, if the RPM input is not needed.

The MAP-2 is primarily intended for use as a manifold pressure gauge, however, this accurate instrument can be used for many other applications as well.

In addition, the MAP-2 provides a 24 entry automatic flight log that stores the duration of each of the last 24 flights. It also has a Hobbs meter (can be set to the current engine time) which is password protected, an engine running timer/flight timer and a programmable maintenance timer to schedule routine engine maintenance.

The MAP-2 also features a programmable low/high alarm for pressure as well as for RPM and it also records the maximum Pressure and RPM reached in permanent memory.

Typical applications include:

Engine manifold pressure, Turbo boost pressure, Barometer, fuel or oil pressure gauge (with additional isolation kit), pressure reference, airfoil research and testing.

Major features list:
  • Universal pressure and RPM indicator

  • Can Measures RPM from 0 to 20000 RPM

  • Can measure pressures in the range of 0.25 bars (3.6 PSI) to 2.5 bars (36.2 PSI)

  • Pressure can be displayed in millibar, bar, PSI, kg/cm2, inches of Mercury, millimeters of Mercury, kilopascal (KPA) or atmospheres

  • Contains a programmable low/high Pressure and RPM alarm

  • Records maximum pressure and RPM reached in permanent memory

  • Includes a 24 entry automatic flight log

  • Includes a settable Hobbs meter (password protected) and an engine running timer/flight timer

  • Contains a programmable maintenance timer for scheduled routine engine maintenance

  • Scalable analog pressure bar graph

Download the manual for detailed information by clicking on the link below:
Real Time Clock + OAT + Voltage (3.5″RTC-1)

The RTC-1 is a 3.5” format aviation Real Time Clock featuring a two time zone system, stopwatch, timer and alarm.

It is primarily intended to show UTC time (also known as Greenwich Mean Time, GMT or Zulu time) together with alocal time to facilitate ordinary ATC time reporting.

Each time zone may be programmed with an additional hour offset to allow for summer time or similar variances. Local offsets may be added or subtracted. Stopwatch and Timers can be operated simultaneously to a programmable alarm, making the RTC-1 particularly suitable for sport flying competitions.

The RTC-1 can also display OAT in either degrees Celsius or degrees Fahrenheit.

The RTC-1 can also measure voltages up to 30V DC with a programmable low and high voltage alarm.

Time is maintained by an internal lithium battery which can be replaced by the user.

Major features list:
  • 2 time zone system, stopwatch, countdown timer, alarm, OAT (outside air temperature) and voltage display

  • Stopwatch and timers can operate simultaneously to a programmable alarm

  • Local time offsets can be added or subtracted e.g. summer time or similar variances

  • OAT can be displayed in degrees Celsius or degrees Fahrenheit

  • Can measure voltages up to 30V (compatible with both 12V and 24V aircraft supplies)

  • Contains a programmable low/high voltage alarm to automatically alternator failures , bad batteries, etc.

  • Records maximum and minimum OAT and maximum Voltage reached in permanent memory

  • Replaceable lithium battery

Download the manual for detailed information by clicking on the link below:

Velocity Singles 3.5″ – Engine Monitoring Systems:

E-1 Universal Engine Monitoring System

The E-1 universal engine monitor combines in one compact 3.5” format instrument all that is needed to monitor most smalleraircraft engines from two-stroke ultralight engines to medium sized four strokes such as those from Jabiru, Rotax, Continental and Lycoming. Also most automotive engine conversions can benefit from the use of the E1 engine monitor.

The E-1 can measure up to 4 EGT/CHT channels, a universal RPM input, a universal temperature sender input, a universal pressure sender input and the aircraft’s supply voltage.

Major features list:
  • 66 different engine setup configurations possible

  • Universal, programmable rev counter (engine RPM) with digital and analog readout, with a programmable high alarm limit

  • Programmable engine Hobbs meter (password protected) and running timer (flight timer) with automatic flight log

  • Can monitor up to four programmable thermocouple channels for EGT and CHT probes with a user programmable high alarm limit

  • A universal temperature sender input with a user programmable low and high alarm limits

  • A universal pressure sender input with a user programmable low and high alarm limits

  • Supply voltage measurement up to 30V with a user programmable low and high alarm limits

  • Maximum recorded values for all measured values are stored in non-volatile memory

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

  • Thermocouple temperature probes can be common K, J or E-type thermocouple probes

  • Uses standard automotive temperature and pressure senders

  • Special Rotax 912/914 engine monitor mode utilizing the standard built in Rotax NTC CHT probes

  • Supports the new Rotax 912/914 4-20mA oil pressure sender

Many different probe types can be supported.

Download the manual for detailed information by clicking on the link below:

Quad EGT/CHT Monitoring System 3.5″ (TC-2):

Ever wanted a totally flexible, one, two, three or four channelEGT or CHT monitoring system ?

Well the TC-2 is the total solution for any engine, big or small.

The TC-2 thermocouple display unit is a 4 channel 3.5″ instrument that contains all the features necessary to monitor EGT’s and CHT’s.

The instrument is fully programmable by the user resulting in the most flexible solution available. It contains 6 different display screens to allow easy customization. The TC-2 can be configured to group EGT’s/CHT’s to common settings or each thermocouple channel can be independently setup for temperature ranges as well as alarms and probe types.

The TC-2 achieves a high degree of accuracy due to its inbuilt thermocouple linearization curves and cold junction compensation techniques. Temperature probes can be common J, K or E type thermocouple probes as used in CHT or EGT sensors. Temperatures can be displayed in degrees Celsius or degrees Fahrenheit from -100ºC to 1200ºC (-148ºF to 2192ºF). Each channel also offers a programmable high alarm.

The TC-2 also records maximum temperatures reached for each channel in permanent memory.

Major features list:
  • 6 different display modes

  • Supports J, K and E thermocouple probes

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

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

  • Records maximum temperatures reached for each channel in permanent memory

The TC-2 does not include probes. Select these as required for the application from our range or use your own probes.

Download the manual for detailed information by clicking on the link below:

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12 Channel EGT/CHT Monitoring System 3.5″ (TC-3):

For larger engine or total temperature monitoring of all thermocouple sourced engine information, the 12 channel TC-3 is the answer!

The TC-3 thermocouple display unit is a 12 channel 3.5” instrument that contains all the features necessary to monitor EGTs and CHTs.

The TC-3 can be configured to display up to 12thermocouples (EGT/CHT) in an easy to understand bargraph format.

In addition the TC3 has an individual programmable EGT and CHT alarm with an external output that can switch an external visual alarm indicator such as a lamp. Maximum temperature for each thermocouple is recorded in permanent memory and is also indicated by a solid line above that thermocouples bar graph.

The TC3 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.

Temperatures can be displayed in degrees Celsius or degrees Fahrenheit from -100ºC to 1200ºC (-148ºF to 2192ºF).

The TC-3 achieves a high degree of accuracy is due to its inbuilt thermocouple linearization curves and cold junction compensation techniques.

Major features list:
  • 12 Channel thermocouple display unit

  • Supports J, K and E thermocouple probes

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

  • High accuracy from inbuilt thermocouple linearization curves and cold junction compensation.

  • Maximum temperature for each thermocouple is recorded in permanent memory and indicated by a solid line above the thermocouples bar graph

  • Engine leaning function according to peak EGT temperatures

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

The TC-3 does not include probes. Select these as required for your application from our range or use your own probes.

Download the manual for detailed information by clicking on the link below:

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Fitting your Velocity Singles Instruments

Our Velocity Singles instruments are designed to fit a standard 3.5″ instrument cut out.

After the cut out is made, each instrument can be mounted from the back of the panel or on the front of the panel and secured with the supplied Allen key headed bolts & nuts.

The position of the holes for the screws which secure the instrument to the panel can be marked by carefully rotating a 3 mm drill in each of the four holes, removing the instrument, centre punching the positions and then drilling the holes. Whilst the holes are marked on the template, using the instrument to finally position and mark the holes (but, not drill using the housing as an aligning tool) is strongly suggested.

The instrument can then be reinserted and secured to the panel with four machine screws.Do not over tighten the screws/bolts used to fasten the instruments, as doing so may fracture the housing – the nylock nuts or Loctite (see below) will minimise any risk that the screws/ bolts will loosen.

Download a copy of the Velocity Singles dimension data (including cut out size) by clicking on the link below:

Velocity Dimensions Data


Wiring Your Instrument:

Instructions on installation and wiring your instrument(s) are provided in the installation section of the user manual, included with each system. Please read these instructions carefully, as we have found that the vast majority of owner queries are about issues already covered in the manuals. If you happen to misplace your manual a copy can be downloaded or printed from our web site – see the links above.


Please Note:
Operation of Stratomaster Singles Instruments is the responsibility of the pilot in command of the aircraft. The pilot in command has to make himself/herself familiar with the operation and limitations of the Stratomaster Velocity Singles instrument(s) before commencing ground or flight operations. Under no circumstances does the manufacturer condone usage of this instrument for SFR flights.
These instruments are designed for use in ultralight, microlight, experimental and homebuilt aircraft as well as any aircraft that permit use of such (non certified) instrumentation under general or special operating permits. Stratomaster Singles Instruments have Not been submitted to CAA or FAA or any of its agencies (or any regulatory authority in any other country) for any form of certification. Operation and installation of these instruments is subject to the relevant rules and regulations of your country and flight authority.
If any of the above is not acceptable to the pilot in command he/she must refrain from operating the aircraft or remove any Stratomaster Singles Instruments from the aircraft before commencing aircraft operations.