Available in aspiration and impact configurations. Both are supplied in a wide range of standard and custom lengths. An aspiration (static) probe has a straight-cut tip that opens parallel with the air stream. An impact (total pressure) probe has an angle-cut tip that opens directly into the air stream: it is positioned so that it faces into the air stream for pressure applications and away from it for vacuum applications. Either type of probe can be supplied with a straight slip-on connector or a tri-barbed connector.