Pitot-static tube

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A device consisting of a Pitot tube and a static tube combined to measure simultaneously the total and static pressure in a fluid stream. It can be used in aircraft to determine relative wind speed.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun measuring instrument consisting of a combined Pitot tube and static tube that measures total and static pressure; used in aircraft to measure airspeed