Abstract: An airflow sensor is designed with features which enhance the accuracy of measurement. The central hub of the airflow sensor is made in an air foil shape to reduce noise and turbulence at that region. The airflow sensing tubes extend radially outwardly from the central hub and are made extremely thin in profile to minimize turbulence. Each airflow sensing tube has a plurality of spaced airflow receiving openings therethrough which are spaced from one another in a manner permitting each opening to receive air from a volume of air equal to the volumes of air from which other holes receive air flow. The downstream air collection tubes are circumferentially spaced between the first-mentioned airflow sensing tubes and have open ends to receive air from the open areas between the first-mentioned airflow sensing tubes.