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 HORIZON/COMPASS
Attitude / Heading Indicators
Meet the World’s most lightweight and compact, fully integrated inertial measurement instruments (IMU’s) and digital compasses.
We combine the most advanced and miniaturized components for magnetic field and intertial measurement in a compact format weighing in at less than 150 grams.
We use our AV-1 airtalk computer, a Stratomaster Infinity Single programmed with an application program that lets you choose what you want to display. Horizon, Turn & Bank, or a compass - as you wish, and each mode has options and additional, useful functions.
The display options depend on the attitude / heading sensor package you select...
Attitude/Heading Sensors:
Depending on what attitude / heading sensor packages you choose, you will have the following features on your instrument:
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SP-2 Sensor:
Tilt-compensated magnetic compass
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SP-4 Sensor:
Attitude indication and turn/bank indication
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What else can you do?
With the SP-4 and SP-2 sensor packages you can add additional AV-1 Infinity Singles (or even 3 1/8” AV-2 Maxi Singles) for separate Compass and Turn/Slip Indicators.
Or how about one SP-4 and one SP-2 unit and six AV-1/AV-2 displays? Yes, you can have two Horizons, two Turn/Slips and two Compasses all at the same time. Makes a dual cockpit layout interesting...
MANUAL DOWNLOAD:
Download AV-1 Manual (PDF)
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ALT-1 Precision encoding altimeter and VSI indicator
The ALT-1 is a 2.25” instrument that contains a precision encoding altimeter and a wide range vertical speed indicator. The altimeter conforms to ANSI standard atmosphere rules from –700 ft up to a maximum of 40,000 ft. The altimeter includes an encoding serial output that when used in combination with MGL Avionics CNV-AT, provides a parallel Gillman 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 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-1 provides an OAT sender which is used in the determining the density altitude of the aircraft. The ALT-1 can also be used to measure relative altitude as well as it has a facility for the pilot to enter a reference altitude and deviation band that has to be kept.
- Precision altimeter for –700 ft up to a maximum of 40 000 ft
- Provides altitude encoder data on airtalk (serial) output, which can be converted by a MGL Avionics CNV-AT converter to a parallel Gillman code interface for transponders .
- 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 ALT-1 Manual (PDF)
Price: $250 + shipping from CA
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ASI-1 Airs peed indicator with automatic flight log
The ASI-1 airspeed indicator is a 2.25” instrument that provides a wide range airspeed indication in both digital and analog formats. Airspeed is based on the pressure generated by a pitot tube system and a static port is provided as well for use by high speed aircraft. In addition, the ASI-1 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. Airspeed can be indicated 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 analog airspeed display can be scaled according to the aircraft’s flying speed range and markers for Vs, Vf, Vno and Vne can be set. ASI sensitivity can be calibrated by the user to cater for errors caused by pitot tube placement. The ASI-1 instrument measures airspeed from 16mph to 250mph and is well suited to slower aircraft due to very good sensitivity and linearity at low air speeds.
- Measure airspeed from 16mph to 250mph 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 bar graph indicating airspeed with markers for Vs, Vf, Vno and Vne
Download ASI-1 Manual (PDF)
Price: $220 + shipping from CA
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ASX-1 Encoding Aviation Altimeter and Airspeed Indicator
The ASX-1altimeter/airspeed combo is a 2.25” 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 40 000 ft.
The altimeter includes an encoding serial output that, when used in combination with MGL Avionics CNV-AT, provides a parallel Gillman code interface for transponders. The altimeter can display altitude in feet or meters. Local pressure can be set in millibars or inches or mercury.
The airspeed indicator can show air speeds from 16 to 250 mph 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-1 also outputs airspeed information via the airtalk protocol for interfacing to the Infinity FF-1 (fuel flow computer for single or dual fuel tanks) and the SP-X (AHRS) instruments.
In addition the ASX-1 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-1 is the ideal instrument for installations were panel space is at a premium.
- Precision altimeter for –700 ft up to a maximum of 40 000 ft
- Provides a parallel Gillman 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 or 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 (kph) or nautical miles per hour (knots)
- Contains a programmable low/high airspeed alarm
- Records maximum airspeed and altitude reached in permanent memory
Download ASX-1 Manual (PDF)
Price: $280 + shipping from CA
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E3 Universal Engine Monitor
The E3 universal engine monitor combines in one compact 2.25” format instrument all that is needed to monitor most smaller aircraft engines from two-stroke ultralight engines to medium sized four strokes such as from Rotax, Continental and Lycoming.
Also most automotive engine conversions can benefit from the use of the E3 engine monitor.
Download E3 Manual (PDF)
Price: $220 + shipping from CA
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BAT-1 Battery Voltage and Current Monitor
The BAT-1 is a 2.25” instrument used to monitor your aircraft’s battery power supply. It can be used on lead-acid, NiCad batteries as well as gel cells. This instrument is very useful in determining your battery’s health, charging status, as well as the current load consumption of your aircraft. The BAT-1 can be used in both 12V and 24V aircraft and can measure voltages up to 30V DC. The BAT-1 uses a standard 50 mV shunt (50 Amp shunt included) to measure the current making the unit capable of measuring currents from 5A to 500A. The instrument contains a programmable low/high voltage alarm to automatically detect bad batteries and alternator failures.
- Measure voltage and current simultaneously
- Can measure voltages up to 30V (Compatible with both 12V and 24V aircraft supplies)
- Contains a programmable low/high voltage alarm to automatically catch alternator failures and bad batteries
- Includes a battery charge/discharge indication
- Choice of 3 display modes (volts only, current only, or dual current & voltage display)
- Records maximum volts, charge and discharge currents in permanent memory
- Analog bar graph indicating charge/discharge current
Download BAT-1 Manual (PDF)
Price: $205 + shipping from CA
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TC-1 4-channel Thermocouple Monitor
The TC-1 thermocouple display unit is a 4 channel 2.25” instrument that contains all the features necessary to monitor EGTs and CHTs. 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-1 can be configured to group EGTs/CHTs to common settings or each thermocouple channel can be independently setup for temperature ranges as well as alarms and probe types.
The TC-1’s high accuracy is due to its built in thermocouple linearization curves and cold junction compensation techniques. Temperature probes can be common K or J type thermocouple probes as used in CHT or EGT sensors. Temperatures can be displayed in degrees Celcius or degrees Fahrenheit from -270ºC to 1370ºC (-454ºF to 2498ºF). Each channel also offers a programmable high alarm.
The TC-1 also records maximum temperatures reached for each channel in permanent memory.
- 6 different display modes
- Supports J and K thermocouple probes
- Temperatures can be displayed in degrees C or degrees F from -270 ºC to 1370ºC (-454ºF to 2498ºF).
- High accuracy: Built in thermocouple linearization curves and cold junction compensated
- Records Maximum temperatures reached for each channel in permanent memory
Download TC-1 Manual (PDF)
Price: $200 + shipping from CA
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TP-1 Universal Termperature/Pressure Gauge
The TP-1 is a 2.25” universal temperature/pressure gauge which can be setup to display oil temperature, coolant temperature, oil pressure, fuel pressure, manifold pressure and boost pressure.
The TP-1 gauge can be programmed by the user for a variety of temperature/pressure ranges and can be adapted to many types of senders. Temperature can be measured using standard automotive NTC senders as well as the MGL Avionics semiconductor sensor. Pressure can be measured using standard VDO automotive senders as well as linear pressure transducers.
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. The TP-1 also records the maximum temperature and pressure values reached in permanent memory
- Universal temperature and pressure gauge
- Uses standard automotive temperature and pressure senders
- Both temperature and pressure readings have a programmable low and high alarm
- Records maximum temperature and pressure reached in permanent memory
Download TP-1 Manual (PDF)
Price: $170 + shipping from CA
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FF-1 Fuel Management System
The FF-1 fuel management computer is a 2.25” instrument intended for efficient monitoring of fuel related information for single or dual fuel tanks onboard small aircraft and related applications.
The FF-1 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-1.
In addition, the FF-1 can be connected via the airtalk communication link to the Stratomaster Infinity ASX-1 for automatic range calculation which is based on current fuel usage, fuel remaining and current airspeed.
- Advanced fuel computer with 13 different modes of operation
- Supports single or dual fuel tanks
- The FF-1 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
- Fuel flow by the means of measuring the fuel injectors on time is also supported
- The FF-1 can connect to a Stratomaster Infinity ASX-1 via the airtalk protocol for range based calculations. It can also accept a manually entered cruising speed if an ASX-1 instrument is not available
- Standard automotive fuel level senders can be used, even with odd shaped tanks due to a comprehensive, multi-point calibration system
Download FF-1 Manual (PDF) Fuel Flow Sensor Manual (PDF)
Price: $185 + shipping from CA (Fuel Flow sender add $185)
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RV-1 Universal Engine RPM and Rotor RPM Indicator
The RV-1 universal engine RPM and rotor RPM unit is a 2.25” instrument providing a universal RPM counter that can be adapted to a variety of roles. Typical uses are engine RPM displays or Helicopter / Gyroplane Rotor RPM displays.
The RV-1 displays RPM in a digital readout as well as in a scalable analog bar graph display. In addition the RV-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 RV-1 also features a programmable RPM high alarm as well as it records the maximum RPM reached in permanent memory.
- Measures RPM from 0 to 20000 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 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 RV-1 Manual (PDF)
Price: $165 + shipping from CA
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RTC-2 Aviation Real Time Clock and OAT Display
The RTC-2 is a 2.25” aviation Real Time Clock featuring a two time zone system, stopwatch, countdown timer, alarm and OAT (Outside Air Temperature) display. It is primarily intended to show UTC time (also known as Greenwich Mean Time, GMT or Zulu time) together with a local 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-2 particularly suitable for sport flying competitions. OAT can be shown in either degrees Celsius or degrees Fahrenheit. The RTC-2 can be setup to automatically or manually alternate between the different time display screens and the OAT display. Time is maintained by an internal lithium battery which can be replaced by the user.
- Features a 2 time zone system, stopwatch, countdown timer, alarm and OAT (outside air temperature) 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 shown in degrees Celsius or in degrees Fahrenheit
- Records maximum and minimum OAT in permanent memory
- Replaceable lithium battery
Download RTC-2 Manual (PDF)
Price: $165 + shipping from CA
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MAP-1 Universal Pressure Indicator
The MAP-1 is a 2.25” instrument which can measure pressures in the range from 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. The pressure display is also available in the form of an analog bar graph with user selectable sensitivity. The MAP-1 is primarily intended as manifold pressure gauge, however, due to the universal nature of this accurate instrument it can be used for many other applications as well. The MAP-1 also includes a programmable low/high alarm.
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.
- Universal pressure indicator
- Can measure pressures in the range from 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 alarm
- Records maximum pressure reached in permanent memory
- Scalable analog pressure bar graph
Download MAP-1 Manual (PDF)
Price: $235 + shipping from CA
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GF-1 G-Force Indicator
The GF-1 is a 2.25” g-force meter capable of measuring G-forces exerted in an aircraft up to +-10G. The forces acting on the aircraft is easily seen on a large backlit graphics display both numerically and graphically. The GF-1 also has the facility to record maximum G-forces obtained in permanent memory as well as it has 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-1 is able to measure G-forces even if the instrument is not mounted exactly in the vertical axis of the aircraft.
- Typical, accurate range up to 20G (From -10Gto +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 calibration function for operation at temperature extremes using Earth gravity.
Download GF-1 Manual (PDF)
Price: $195 + shipping from CA
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Senders Available from MGL Avionics:
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33V High speed / High power transorb.
This device is recommended to be used to protect any electronic devices connected to an aircraft’s power supply. The device works by clamping the v oltage to a maximum of 33V. It can do this in a matter of a few billionths of a second and it can, for a short time, withstand a very large amount of power. We recommend that a single device is fitted to incoming power for the aircraft’s instrument panel, following a fuse or circuit breaker. This device can protect any instrument including intercoms and radios. We include a sheet giving recommended placement of this device.
Download Transorb Manual (PDF)
Please note: All Stratomaster instruments now have transorbs built into their circuitry. These can still be used to protect other avionics.
Price: $6 + shipping from CA
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10,000uF Electrolytic Capacitor
This 10,000uF electrolytic capacitor is an inexpensive and useful addition to  your aircraft’s power supply. It can significantly reduce noise signals on your power supply that may be affecting your VHF radio, such as ignition noise or rectifier/regulator noise artifacts.
Note: The capacitor must be installed as close as possible to the noise source, in parallel (across the + and - of the power supply going to the noise source), with very short leads for maximum effect.
Price: $6.50 + shipping from CA
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