Garmin GI 275 HSI

Part No: 010-02327-10

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Version: HSI, Class I/II

Garmin Horizontal Situation Indicator

Adaptable to a full range of instrument formats and functions, our GI 275 electronic display lets you keep the classic look of your panel while upgrading with modern, reliable glass touchscreen display technology.

GI 275 HSI

When installed as an HSI, the GI 275 flight instrument is designed to accept a variety of GPS or navigation inputs, allowing up to two GPS sources and two VHF navigation sources. The GI 275 features an Omni Bearing Resolver that allows the flight instrument to interface to a variety of legacy navigation sources without the need for an expensive adapter. With an optional magnetometer, it is also capable of providing magnetic-based HSI guidance.

Garmin HSI 275 For Sale

Vertical and lateral GPS, VOR/LOC and glideslope deviation can be viewed on the GI 275.  the touchscreen interface, while course and heading selection is completed by using either the touchscreen or dual concentric knob. When pilots replace an older mechanical HSI, GI 275 doubles as a modern digital indicator and adds MFD-like capabilities such as a moving map, weather, traffic and terrain. With appropriate nav inputs, GI 275 can optionally add HSI course guidance overlaid on a moving map display with flight plan legs, terrain, weather and more.

  • 3.125" Round Multifunction Instrument
  • Attitude Indicator, HSI, CDI, MFD, EIS, Standby Capability
  • Touchscreen Display with Dual Concentric Knobs
  • Compatible with Garmin and 3rd Party Autopilots
  • Built-in Wireless Connectivity (WiFi & Bluetooth)
  • Available with 60-minute backup battery
  • Approved for Installation in over 1000 Part 23 Class I/II/III & Class III Part 25 aircraft
  • Attitude Indicator can be primary source for attitude, turn coordination, altitude, airspeed
  • Integrated solid-state ADAHRS version available
  • Optional Synthetic Vision Technology
  • HSI version replaces primary HSI; supports digital & analog navigation receivers
  • HSI Map capability adds dynamic map with overlays for flight plan, terrain, traffic, weather and more
  • Built-in VFR GPS (requires GPS antenna)
  • Automatic Reversionary Capability for seamless reversionary mode with dual GI-275 installations
  • Integrated solid-state ADAHRS version available
  • Radar Altimeter Display
  • CDI supports digital & analog navigation receivers; up to 2 GPS sources, 2 nav sources; compatible with select 3rd party nav sources
  • Standby display integrates with TXi displays, G500/600, G1000/NXi, 3rd party mechanical & EFIS displays
  • Primary Engine Indication System supports single/twin piston aircraft; engine, fuel, eletrical data, fuel computer
  • EIS version provides engine data logging and exporting to Garmin Pilot
  • Updating available via GSB-15
  • ADAHRS + AP version adds interface capability to many popular legacy autopilot systems; Software level Class B/C
  • Width: 3.25" (82.6 mm)

  • Height: 3.25" (82.6 mm)

  • Depth: 6.44" (163.6 mm)

  • Depth with Connector: 7.40" (188.0 mm)

  • Unit Weight: 1.9 lbs (0.86 kg) to 2.4 lbs (1.1 kg)

  • Active Display Size: 2.69” diameter

  • Display Resolution: 480 x 433 pixels

  • Operating Voltage: 14/28 VDC

  • Operating Temperature Range: -20°C to +55°C

  • Altitude Range: -1,500 ft to 55,000 ft

  • Wi-Fi Class: 802.11b/g/n

Garmin products have been designed for compatibility with a wide range of avionics. To confirm compatibility of Garmin equipment with your specific aircraft make/model and current avionics configuration, please consult your Authorized Garmin Dealer.






View Detailed Autopilot Compatibility

GPS Source


Internal VFR GPS


GNS 430W/530W Series


GNS 480


GTN 650/750 Series


GTN 650Xi/750Xi Series


GTX 335/345

Requires Integrated GPS Variant

GPS 175/GNC 355/GNX 375


Database Updating


GSB 15


Garmin Pilot App


Navigation Receiver


GNC 255


GNS 430W/430AW

GNS 530W/530AW


GNS 480 (CNX80)


GTN 650/750


GTN 650Xi/750Xi


SL 30





Honeywell (Bendix/King)

KX 155/155A/165/165A


KN 53


KX 170B/175B


Radar Altimeter


GRA 55/5500








Honeywell (Bendix/King)

KRA 405B


Traffic Source


GTS 800/820/825/



GTX 33/330/335

TIS-A Only

GTX 345


GNX 375


Avidyne (Ryan)









L-3 Communications






Weather Source



GTN Series, GTN Xi series or TXi Series must also be connected

GTX 345


GNX 375


L-3 Communications

WX-500 Stormscope

GTN Series, GTN Xi series or TXi Series must also be connected

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Garmin GI 275 HSI


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