Boeing ForeFlight Sentry - AHRS

AHRS
Sentry and Sentry Plus provide ForeFlight Mobile with an attitude and (GPS) heading
reference system (AHRS). Attitude data is provided by a 3-axis accelerometer and digital
gyroscope.
ForeFlight Mobile’s backup attitude indicator displays Sentry’s attitude and GPS track
information in real-time. Attitude and GPS track information can be reviewed post-flight with
ForeFlight Track Log.
Sentry Pilot’s Guide 62
NOTE: Sentry and Sentry Plus AHRS are not optimized for acrobatic flying.
Sentry Provided Pitch & Roll Information