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Model #: MD23

Flex Digital GPS Clock

2-inch, 10-32 VDC, LCD, Local Time, UTC/Zulu Time, Flight Timer, Countdown Timer, Stopwatch, Date, Time to Waypoint, Hobbs, Run Timer

Manufactured by Mid-Continent Instruments and Avionics
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  • List Price: $3,991.00
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9 Functions Local Time, UTC/Zulu Time, Flight Timer, Countdown Timer, Stopwatch, Date, Time to Waypoint, Hobbs, Run Timer

  • Receives ARINC 429 input to sync with a GPS source
  • Maintains accuracy, even if GPS input is unavailable
  • Outputs time to external equipment and provides Estimated Time (ET) to your next waypoint
  • Clock settings include 12- or 24-hour mode and seconds ON or OFF
  • Standard 2-inch size
  • Lightweight — 0.4 lbs
  • Simple user interface — Single, push-and-turn control knob
  • Daylight readable LCD and smooth, high-resolution graphics
  • Manual external lighting control or built-in photocell for automatic dimming
  • Night Vision Imaging System (NVIS) compatible (available)
  • Field-upgradeable software via standard USB-A port
  • TSO-certified (Design Assurance Level A)
  • Designed and built in Wichita, Kansas, USA
  • 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 150, 252

Data Output
ARINC 429: Low or high speed; Label 150

5, 14, or 28 VDC external control or internal photocell for automatic dimming

Rechargeable coin cell (memory only)

0.4 lbs (0.17 kg)

Rear panel mounted, (4) #6–32 screws, 2.25-inch round bezel

2.43 x 2.43 x 1.0 inches (61.7 x 61.7 x 25.4 millimeters)

Mating Connector
MCIA P/N 9019162-1: 26-pin, D-Sub electrical connector (Quick Disconnect)

FAA TSO certified to C113b
RTCA DO-160G qualified
RTCA DO-178C qualified, Design Assurance Level (DAL) A

U.S. Patent 11,048,389
6420023 Installation Manual
6420023 Technical Drawing

Product Flier
MD23-190 Product Flier

User Guide
MD23-190 User Guide

Service Bulletins

Software Updates

Click the button below to be redirect to the FLEX® MD23 Standard Unit Software Update page.

Software Version 1.1.0
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