Frsky's new Airspeed Sensor Smart Port Sensor provides Air Speed Data for the full flight via the Smart Port telemetry on all the XR range of receivers. Available in two options

Model:                            ASS-70
Operating Voltage Range: DC 4 -10 V
Operating Current:           20mA@5V
Measurement Range:        0~270km/h (0~167.7mile/h )
Weight 7 g, dimensions:   33.29×22.26×12.55mm
Pitot Tube:                      Weight 4 g, length 101mm, diameter 2.6 mm
Pitot Tube Hose:              Silicon, clear, 3 feet (1 meter), 2.2mm ID, 3.8mm OD

Model:                            ASS-100
Dimension: dimensions:   33.14×17.14×10.45mm
Circuit Board:                  Weight 5 g,
Pitot Tube:                      Weight 4 g, length 101mm, diameter 2.6 mm
Pitot Tube Hose:              Silicon, clear, 3 feet (1 meter), 2.2mm ID, 3.8mm OD
Operating Voltage Range: DC 4 -10 V
Operating Current:           25mA@5V
Measurement Range:        0~360km/h (0~223.7mile/h )