A Signal For Safer Flying

Just like all Stratus products, our transponders were designed to be some of the most cost-effective, easily-installed certified avionics available for general aviation. Check out the options below to find the best solution for your airplane.

Stratus ES Stratus ESG
GPS Source Navigator input Built-in WAAS GPS
Certified ADS-B Out
2020 Compliance
Portable ConnectTM
MSRP $2,495 $2,995


With or Without WAAS GPS

Stratus ESG

Stratus ESG was designed with non-glass panel aircraft in mind. Our simplified solution includes a 1090 ES transponder and certified WAAS GPS in the same box. It’s truly an all-in-one box solution for 2020 compliance.

Stratus ES

Stratus ES was built without GPS in order to provide affordable ADS-B Out to aircraft owners who have already invested in WAAS GPS. Stratus ES will make an aircraft rule-compliant when paired with any of the following navigators:

  • Garmin GPS 400W, GNC 420W/420 AW, and GNS 430W/430AW
  • Garmin GPS GNS 480 (CNX80)
  • Garmin GPS 500W and GNS 530W/530AW/530TAWS
  • Garmin 6XX and 7XX
  • Garmin GPS175
  • Avidyne IFD440 and IFD540
Stratus H-Variants

Stratus transponders are approved for installation in Part 27 aircraft. The H-variant models, named Stratus ES-H and Stratus ESG-H, are available through an authorized Appareo dealer.

The STC-AML includes Airbus Helicopters, Bell Helicopter, Leonardo, and Robinson Helicopter. 

Simple Installation

Designed with the common 1.65″ tall form factor, Stratus transponders easily replace your existing transponder. Here’s what to consider for install time:

  1. Replace old transponder in panel.
  2. Reuse existing transponder antenna.
  3. Reuse existing altitude encoder.
  4. (Stratus ES) – Connect to existing navigator.
  5. (Stratus ESG) – Install GPS antenna (included in kit).
5-Year Warranty

Appareo offers an industry-leading 5-year warranty on all certified Stratus transponders.

Add ADS-B In

Both Stratus transponders are available in a kit that includes an ADS-B In receiver (Stratus 3i). Stratus 3i was designed to stay plugged into the transponder and tucked behind the panel to benefit from external antenna signals and aircraft power.

If you already own a portable Stratus receiver, there’s an interface kit available to connect your receiver with the Stratus transponder. Enjoy an unobstructed view and mount your Stratus receiver anywhere in the aircraft.

ADS-B In Receivers

Plug into the ultimate ADS-B experience

With its exclusive Portable Connect™ ADS-B antenna feed, Stratus transponders can share an external antenna signal with your Stratus portable receiver to maximize the signal strength. Pick up more ADS-B ground stations- even at lower altitudes.


View the AML-STC ADS-B In/Out Find a Dealer