The Stratus by Appareo manufactured ESG is a TSO certified, 1090 ES Transponder. It comes with an integrated WAAS/GPS source and a GPS antenna. The Stratus ESG was designed for non-glass panel aircraft and is an all-in-one-box solution for 2020 compliance.
The ESG provides an ADS-B “Out” function, however it can be coupled with the Stratus 2S or 2i for added ADS-B “In” function. Additional upgrades include the Stratus Power (a USB charging port) and the Stratus Vision 1000 (a flight data monitor).