When I ordered my 13x8 props from FoxTechFPV, I also bought one of their Pixhawk Px4 Air Speedometer units since it was a great price at only $36 with no additional shipping cost. However, the pitot tube received did not match the image so I needed to use one of Mark_Q’s Standard APM Pitot Tube Mounts to fit the older style tube…which I had on-hand.
After increasing the base angle with some balsa aileron stock, I glued the assembly together with Foam-Tac and painted it black. There was plenty of room inside the Freeman to run the tubes into the Pixhawk compartment and connect the I2C via a I2C Splitter so that both the AS Sensor and Compass can use the same port.
On the far right of the bottom image is my USB trigger for Pixhawk mapping.