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Part# 11-17557
MFR Model# UAX-90050-01


Complement Your Panel with a Certified 12-In-1 Display.

Transform your panel without sacrificing simplicity. AV-20-S is FAA Approved.


  • Display (Voice Alerting & Peaks)
  • G-Meter Display (Voice Alerting & Peaks)
  • Attitude (Roll / Pitch)
  • Slip / Skid Indication (NEW!)
  • Clock (GMT / Local)
  • Outside Air Temperature (C / F)
  • Bus Voltage Display
  • Dual User Timers (Count Up / Down)
  • Engine Run Timer
  • Flight Timer
  • Density Altitude Display
  • True Airspeed Display (Kts / Mph)
  • Audio Alerts (AoA, G, Roll Limits)


  • Input Voltage Nominal: +10 to +32 VDC
  • Input Voltage Max: +60 VDC
  • Input Power Nominal: 3 Watts (0.25 Amps @ 12VDC)
  • Input Power Max: 6 Watts (0.50 Amps @ 12VDC)
  • Required Circuit Breaker: 1 Amp
  • Operation on Battery: 30 Minutes (Standard 15C Env)

  • Physical Attributes
    • Mounting Configuration: 2 1/4 Round Instrument Hole
    • Dimensions wo/Connector: 2.4 x 2.4 x 1.2 Inches
    • Weight: 0.25 Lbs.
    • Electrical Connector: 9 Pin Male D-Sub
    • Pneumatic Connectors: 1/4" OD Quick Connect
    • Mounting: (4X) #6-32 Machine Screws
    • Case Material: High Impact ABS Plastic
  • Environmental
    • Operating Temp: -20C to +55C
    • Storage Temp (48 Hrs): -30C to +80C (Via Analysis)
    • Humidity (48 Hrs): 90% RH (Via Analysis)
  • Display
    • Diagonal Size: 1.8 Circular
    • Contrast Ratio (Typical): 500
    • Brightness (Typical): 1000 cd/m2
    • Viewing Angle Left/Right:60
    • Viewing Angle Up: 45
    • Viewing Angle Down: 10
    • Backlight Lifetime (Typical): 50,000 Hrs


Sunlight Readable Display - Goodbye Glare
  • With a matte display, AV-20S is visible in direct sunlight and automatically adjusts brightness to ambient light.
Audio Alerts - Eyes On the Sky
  • Fly focused and aware with customizable audio alerts. AV-20S many display configurations offer several audio triggers to alert you of critical flight information.
Probeless Angle of Attack - Avoid Stalls
  • The AV-20S alerts you visually and aurally if you approach a dangerous AoA. AoA is calculated by comparing the aircrafts pitch, flight path, and G-loading.

In The Box

  • Included is the AV-20-S (with internal backup battery), two 1/4″ quick connect fittings, mounting screws, and wire harness. The harness has all interconnect pins pre-loaded with individually labeled wires.
  • OAT probe is NOT included and must be purchased separately. The AV-20-S is compatible with the industry standard Davtron Analog probe, C307PS. If the OAT probe is not connected, OAT, DALT and TAS will not be displayed.)


Installed in 1966 Cessna 182 below DG. We bough it as a backup for the AI and turn coordinator. So many features for such a small device and price.

Craig H
July 27, 2020


Q: What is the part number and price of the optional OAT probe please?

This unit is compatible with C307PS, part # 11-04603.

Q: Can I use the AV-20S to replace my legacy turn and slip indicator?

Please see the NORSEE PDF document on the web page. This refers to the approval of the AV-20S as a secondary or non-essential to the required equipment.

Q: How is "Probeless" Angle Of Attack Determined?

Angle of attack is determined by comparing aircraft pitch to the actual flight path angle through the air. This is equivalent to the angle at which the wing is intercepting the body of air surrounding the aircraft - exactly the same as a probe based AoA system. Pitch is determined by a precision internal AHRS, and flight path angle is determined by a precision ADC (airspeed and vertical speed). The resulting angle is then augmented with G-Load, as determined by internal acceleration sensors. For example, during a climb, if the pitch angle is 10 degrees up, and the aircrafts flight path through the air (forward airspeed and vertical speed) is also 10 degrees up, the equivalent AoA is 0 Degrees. However, if the flight path angle through the air is only 7 degrees, then the equivalent AoA is positive 3 degrees as the wing is no longer able to maintain full lift. Therefore, no dedicated AoA probe is required - only internal inertial and pressure sensors (8 in total). Connection to the aircraft's pitot static system is required.

Q: Can I use this AV-20S as a back up to my standard vacuum instruments, is it stand alone?

This does require connections to your pitot static system, however it is standalone and can be used as a backup.

Q: What class aircraft is the AV-20 certified for?

The AV-20, and AV-30 certified, are only certified for Class 1, and Class 2 aircraft. Aircraft under 6000lbs.

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