2-inch
Digital Airspeed Indicator
This certified, MD23-225 digital Airspeed Indicator features smooth, high-resolution graphics with numeric readout, configurable range markings and Mach/MMO indication. Ground Speed and True Air Speed can be displayed with external ARINC input.
Night Vision Imaging System (NVIS) compatible versions are available.

Benefits and Specifications
Configurable | Configurable range up to 500 knots (or MPH), range markings and dynamic MMO barber pole indicator |
Selectable Mach Number Display | User-selectable Mach number display ON/OFF |
Ground Speed and True Air Speed | Ground Speed and True Air Speed indication via ARINC 429 |
Size | Fits standard 2-inch panel cutout |
Battery | Rechargeable, field-replaceable emergency battery (available) |
Lightweight | Weighs just 0.4 lbs |
Simple user interface | Single, push-and-turn control knob |
Display | Daylight readable LCD and smooth, high-resolution graphics |
Lighting | Manual, external lighting control or built-in photocell for automatic dimming |
Night Vision Imaging System (NVIS) | NVIS compatible units (available) |
Certified | TSO certified (Design Assurance Level A) |
Made in the USA | Designed and built in Wichita, Kansas, USA |
Warranty | Two-year limited warranty |
Power Input | 10–32 VDC 0.14A @ 28 VDC; 4 watts nominal |
Data Input | ARINC 429: Low or high speed; Labels 210, 312 Pressure: Absolute/static and differential/pitot (Quick Disconnect) |
Data Output | ARINC 429: High speed; Labels 205, 206 |
Operating Range | Configurable range of 160, 200, 300, 400 or 500 knots |
Units of Measure | Knots or miles per hour (MPH) |
Lighting | Manual external lighting control or built-in photocell for automatic dimming |
Battery | Rechargeable, field-replaceable emergency battery supply (available) P/N 6430006-(1) Technology: Nickel-Metal Hydride (NiMH) Attributes: 0.25A @ 24 VDC nominal (6 Wh capacity) Runtime: 60 minutes @ 0.25A |
Weight | 0.4 lbs (0.17 kg) |
Mounting | Rear panel mounted, (4) #6–32 screws, 2.25-inch round bezel |
Dimensions | 2.43″W x 2.43″H x 1.0″D (61.7mm x 61.7mm x 25.4mm) |
Mating Connector | P/N 9019162-1: 26-pin, D-Sub electrical connector (Quick Disconnect) P/N 9019162-2: Pneumatic fittings (Quick Disconnect) |
Certification | FAA TSO certified to C2d, C106, C113b RTCA DO-160G qualified RTCA DO-178C qualified, Design Assurance Level (DAL) A |
Rights | U.S. Patent 11,048,389 |
Digital Airspeed Indicator Supplemental Type Certificates (STCs)
Select your aircraft manufacturer from the dropdown menu to view a list of applicable STCs.
- Select Aircraft Manufacturer
- Aerostar
- Beechcraft
- Cessna
- Dornier Luftfahrt GmbH
- Learjet Inc. (Bombardier)
- Mitsubishi
- Pilatus
- Piper
- Twin Commander
- Viking Air
Manufacturer: Aerostar
STC Number | Aircraft Model |
SA02010WI |
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Manufacturer: Beechcraft
STC Number | Aircraft Model |
SA02010WI |
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SA02010WI |
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SA02010WI |
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SA02010WI |
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SA02010WI |
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SA02010WI |
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SA02010WI |
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SA02010WI |
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Manufacturer: Cessna
STC Number | Aircraft Model |
SA02010WI |
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SA02010WI |
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SA02010WI |
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SA02010WI |
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SA02010WI |
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SA02010WI |
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SA02010WI |
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SA02010WI |
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SA02010WI |
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Manufacturer: Dornier Luftfahrt GmbH
STC Number | Aircraft Model |
SA02010WI |
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Manufacturer: Learjet Inc. (Bombardier Inc.)
STC Number | Aircraft Model |
ST01138DE |
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Manufacturer: Mitsubishi
STC Number | Aircraft Model |
SA02010WI |
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SA02010WI |
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Manufacturer: Pilatus
STC Number | Aircraft Model |
SA02010WI |
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Manufacturer: Piper
STC Number | Aircraft Model |
SA02010WI |
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SA02010WI |
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SA02010WI |
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Manufacturer: Twin Commander
STC Number | Aircraft Model |
SA02010WI |
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SA02010WI |
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SA02010WI |
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Manufacturer: Viking Air
STC Number | Aircraft Model |
SA02010WI |
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MD23-225 Resources
Product Fliers and Brochures
Technical Documents
Service Notifications
FAA Approved Model List (AML)
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