SBS-01TAS: Atmospheric Altitude Sensor
Airspeed pitot tube that mounts remotely on the aircraft and transmits airspeed back to the transmitter screen via the SBUS2 telemetry port.
About 15 km/h – 600 km/h
About 9 mph – 373 mph
*With Pitot tube and silicone tube attached
DC 3.7 ~ 7.4V
Manual available here.