Hi,

I have the apm2.5 on an gaui 300x frame and it wors great. Now I want to add extra cool sensors on it :)

1) I was thinking bout the sonar, will the sonar be much beter for alt hold?

2) Is the airspeed kit any good? and does it help the apm2.5 to fly any better on a quad?

3) what about seperate magnoto meter or presure senosor? are they beter then what is inside the board? I was thinking to get the Absolute Pressure and Temperature Sensor - BMP085 so I can mount it seperatly in an small box so it doesnt get any wind.... putting tape on the main sensor on the apm2.5 board isnt a perfect solution.

any comment or idea?

thanks,

Sam