The Stratus ESGi kit includes the
certified transponder and a noncertified
ADS-B receiver (Stratus 2i)
that was designed to work only
with Stratus ESG.
Stratus 2i has the same feature
set as Stratus 2S, but without
the battery or internal antennas.
When connected to Stratus ESG,
this receiver provides the same
industry-leading ADS-B and AHRS
experience on ForeFlight Mobile
that pilots have come to expect
from the Stratus product family.