Appareo Stratus ESG / Stratus 3i Combo

Part No: 153010-000050 + 153010-000062

Regular Price: $4,194.00
Shipping calculated at checkout.

Appareo Stratus ESGi Kit

Stratus ESGi is a TSO-certified* transponder that provides compliance in one box. It’s a 1090 MHz extended squitter (ES) transponder with built-in WAAS GPS.

Stratus ESGi ADS-B In/Out Transponder

Designed to replace legacy transponders, Stratus ESGi is a solid-state transmitter that provides 310 watts nominal power output. Its modern keypad makes entering a squawk code easy. The convenient VFR button minimizes pilot keystrokes.

Appareo Stratus ESGi Transponder Integrations

Stratus ESGi is a form-factor replacement for existing transponders — such as the popular KT 76A/C** — so installation is more time-efficient compared to remote boxes that need to be integrated with your old transponder.

For those who have already invested in a WAAS GPS the Stratus ES is also compatible with the following:

  • Garmin GNS-430W, GNS-530W, GTN650, GTN750, GTN Xi Series Units
  • Avidyne IFD440, IFD540

Stratus In/Out Transponder With GPS & Antenna

A TSO’d WAAS GPS antenna is included in the kit, and Stratus ESG can reuse an existing transponder antenna. It also accepts both serial and parallel (e.g. Gray code) inputs, so you can reuse most altitude encoders.

  • Certified 1090 ES transponder (ADS-B Out)
  • RA Miller AV-801 WAAS GPS antenna
  • Stratus 3i module (ADS-B In)
  • Stratus 3i install kit

Stratus ESGi For Sale and Installation

Our experts are here to answer questions on any aircraft specification, integration options, or installation services if you are around any of our locations!

Toll Free: 800.474.9714



  • 1090ES (Mode S extended squitter) 

  • Built-in WAAS GPS 

  • Meets global mandates for ADS-B Out transponders 

  • Push-button operation 

  • Easy-to-use interface 

  • Pressure altitude monitor


Included with Stratus Transponder

  • 1 - Installation Kit, Stratus ESG

  • 1 - Assembly, Backplate, Stratus ESG

  • 1 - Installation Rack, Stratus ESG

  • 1 - RAMI AV-801 WAAS GPS Antenna


Included with Stratus 3i Kit

  • 1 - Stratus 3i Final Assembly

  • 1 - CON PM BNC Jack to Blind Mate Adapter

  • 1 - CON 9 Pin DSUB with Mounting Hardware

  • 1 - MS-151 to BNC Cable – 5 ft

  • 1 - ESG, Right Angle USB Type C to 9 Pin D-Sub, 5 ft

  • 1 - Stratus Window Mount Clip

  • Bezel Height: 1.69 in. (43 mm)

  • Bezel Width: 6.38 in. (162 mm)

  • Depth: 10.75 in. (273 mm) front of panel to connector backshell

  • Weight: 3.29 lbs. (1.49 kg) including rack and connectors

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

  • Storage Temperature: -55°C to 85°C

  • Power Input: 9.0 to 36.0 VDC, 15 W typical

  • Cooling Input: No fan required

  • Environmental Compliance: DO-160G

  • Software Compliance: DO-178B Level C

  • Hardware Compliance: DO-254 Level C

  • Display: OLED

  • Transmitter Power: 310 W

Questions & Answers

See below for answers to our most popular questions.

Have a Question?

  • does this come with the 4 feet wiring harness and gps antennae

    Yes, the GPS antenna is included with the Stratus-ESG Transponder. We fabricate the harness to you specifications so once you order the package we will just need to know the lengths you require for Transponder and GPS antenna coax's, lengths from the Transponder to the Stratus-3i Receiver, and lengths for power, ground, and to encoder.



October 1, 2023 through October 31, 2023

Click Here for More Information

Buy a Stratus Transponder, get a Stratus Power Pro for FREE!

During the month of October, purchase a Stratus Transponder and get a Stratus Power Pro for FREE.

Our transponders were designed to be some of the most cost-effective, easily installed certified avionics available for general aviation.

Product Reviews from Verified Customers