Stratus ESG

Stratus ESG

Part No:

Manufacturer: APPAREO

Stratus ESG

Stratus ESG 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 ADS-B In Out Transponder

Designed to replace legacy transponders, Stratus ESG 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 ESG Transponder Integrations

Stratus ESG 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 430W, 530W, 650, 750
  • Avidyne IFD440, IFD540

Stratus Transponder With 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.

Stratus ESG 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
  • 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

See below for answers to our most popular questions.

Have a Question?

  • Does this come with everything needed for install?

    This system will come with the rack, install kit and GPS antenna. The installer would need to supply a circuit breaker and wiring.

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