MS 4525DO Air Speed Sensor And Pitot Tube

hi to all
i dont get air speed readung from the pitot tube and air speed
i have this air speed: MS 4525DO Air Speed Sensor And[ Pitot Tube]
and i plug it to the 12c i use the pixhawk 2.4.8



need help whit configer it i use mission planner 1.3.79
thank u ! billy