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Spring 2026 EditionVol. XL · No. 1rogerwilcoaviation.comwheels-up since 2022
(605) 299-8178Book Service
Roger Wilco Aviation Services
FAA CERT. REPAIR STATION · AVIONICS · AIRFRAME & POWERPLANT · NDT · FABRICATION
Cert. No. RWSR491E
KYKN · Yankton, SD
FAA Part 145 Repair Station · Cert. RWSR491EAuthorizedGarminDealerAEA MemberNBAA Member
Garmin GMU 11, Unit Only, PMA
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Garmin GMU 11, Unit Only, PMA
Pilot Shop · Avionics - Accessory · Garmin

From the workbench

Garmin GMU 11, Unit Only, PMA

Digital 3-axis Magnetometer Heading Sensor Small, lightweight, cost-effective source of magnetic heading reference Provides accurate 3-axis sensing of the Earth’s magnetic field for use by Air Data, Attitude Heading Refe

By the RWAS Pilot Shop Desk◆From Garmin◆SKU 010-01788-01
Price
$399
In stock — ships direct from Garmin or Yankton
Garmin List PriceSold at MAP — no markup, no markdown.
Digital 3-axis Magnetometer Heading Sensor
  • Small, lightweight, cost-effective source of magnetic heading reference
  • Provides accurate 3-axis sensing of the Earth’s magnetic field for use by Air Data, Attitude Heading Reference System (ADAHRS) to determine aircraft heading
  • Integrates with G3X™, G3X Touch™ and G5 series electronic flight displays
  • Usable for both experimental and certificated aircraft installations with the G5 electronic instrument serving as DG/HSI and/or attitude indicator
  • Installs easily; mountable in 4 cardinal compass directions
GMU 11 is an affordable, microprocessor-based magnetometer. It can be used to accurately sense the Earth’s magnetic field alignment and provide this data to compatible ADAHRS processors for use in referencing aircraft magnetic heading. In essence, the magnetometer acts as an electronic compass, showing the ADAHRS which direction the aircraft is facing in relation to magnetic north.

Unlike conventional flux valve systems, which detect only the horizontal component of the Earth’s magnetic field, the GMU 11 magnetometer provides full 3-axis vector measurements for the most precise digital indication of magnetic field strength and direction.
Order & fulfillmentGarmin watches and direct-ship accessories are sold at Garmin List Price (MAP) and ship direct from Garmin. RWAS processes the order and handles warranty claims.
Warranty & serviceWarranty for Garmin product is shipped back to Garmin for repair or replacement. Warranty for labor of installation is life-time (conditions apply).
Talk to a pilotCall (605) 299-8178 — staffed by pilots and A&Ps, not a call center.