Annunciation Control Unit, Horizontal, 28V LED Lighting **Closeout**
Delivery Options
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Dates provided are estimates to major cities & not guarantees*
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Delivery Estimates
Orders placed by 3pm AEST Monday–Friday ship the same day. Weekend orders ship Monday. Freight costs are calculated at checkout.
Express Post typically arrives next business day in major Australian cities for orders placed before our cut-off.
Not available for orders including aerosols or DG’s.

- Delivery dates are estimates, not guarantees.
- Bulky items may be shipped via TNT Road express.
- See our full shipping policy here.
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Description
The MD41is a compact, self-contained Annunciation and Control Unit (ACU). The fully integrated control unit provides annunciation and mode selection for Global Positioning System (GPS) / Satellite-Based Augmentation System (SBAS) navigators. This series of the MD41 product family is specifically designed to work with the Garmin GTN 6XX/7XX series WAAS navigator systems and derivatives with equivalent functionality. It combines the necessary functions and annunciations required to interface with an approved system and provide regulatory compliance with GPS/SBAS minimum performance specifications.
- Compatible with Garmin GTN 6XX/7XX WAAS Navigators
- Includes CDI and suspend mode switching, independent of OBS per new GTN requirements
- Compact, self-contained GPS annunciation control unit
- Automatic-dimming and daylight readable LED lighting
- Single cutout and locking D-subminiature connector reduces installation costs
- Quality Mil-Spec connector included
- TSO-C129 certified
- Qualified to RTCA DO-160 environmental specs
- Designed and built in Wichita, Kansas, USA
- One-year limited warranty
Specifications
| Category | Aircraft Supplies |
|---|---|
| SKU | MD41-1028 |
| Shipping Weight | 0.5 kg |
The MD41is a compact, self-contained Annunciation and Control Unit (ACU). The fully integrated control unit provides annunciation and mode selection for Global Positioning System (GPS) / Satellite-Based Augmentation System (SBAS) navigators. This series of the MD41 product family is specifically designed to work with the Garmin GTN 6XX/7XX series WAAS navigator systems and derivatives with equivalent functionality. It combines the necessary functions and annunciations required to interface with an approved system and provide regulatory compliance with GPS/SBAS minimum performance specifications.
- Compatible with Garmin GTN 6XX/7XX WAAS Navigators
- Includes CDI and suspend mode switching, independent of OBS per new GTN requirements
- Compact, self-contained GPS annunciation control unit
- Automatic-dimming and daylight readable LED lighting
- Single cutout and locking D-subminiature connector reduces installation costs
- Quality Mil-Spec connector included
- TSO-C129 certified
- Qualified to RTCA DO-160 environmental specs
- Designed and built in Wichita, Kansas, USA
- One-year limited warranty
| Category | Aircraft Supplies |
|---|---|
| SKU | MD41-1028 |
| Shipping Weight | 0.5 kg |

