The FrSky Variometer sensor calculates the altitude from atmosphericpressure. Atmospheric pressure will get lower as you go up in altitudeusing this the sensor will estimate the altitude. An exact displaycannot be performed if atmospheric pressure changes in weather. TheVariometer sensor also can output the Altitude Rate via DA port.Altitude Rate formula: (Output DA Voltage -1.65)/1.65=Altitude Ratespeed/10.24.
Features:
? Capable of connecting directly to the telemetry receivers without thesensor hub.
? Backward compatibility with existing sensor hub and sensors alsocompatible with new generation Smart Port enabled sensors.
? Smart Port enabled realizing two-way full duplex transmission.
Specs:
Type: Variometer sensor
Measures: -700 ~ 10000m with 1.0m (normal precision version) resolution
Operational Voltage: 4~10VDC
Operational Current: 30mA
Dimensions: 31.1x18.3x6mm (LxWxH)
Weight: 3.1g
Units: Metric or British units