Futaba SBS-02A - Atmospheric Pressure Telemetry Sensor
To be used with a compatible Futaba transmitter & S.BUS2 receiver
Improved accuracy vs the earlier SBS-01A sensor
Provides: Altitude and rate of climb/descent data
Range: 500-1100hPA or -50 to +5500 meter
Weight: 2.7 g
At present time (May 2017) it's compatible with these Futaba Telemetry Systems:
T6K
T10J
T14SG
T16SZ
T18SZ
T18MZ
T18MZ-WC