Bosch Mass Air Flow Sensor-0280218214 is a high-precision, low-pressure drop, air flow sensor designed to measure the mass flow rate of air entering a fuel-injected engine. It features a compact, lightweight design that is easy to install, and is suitable for a wide variety of automotive applications. The sensor is equipped with a built-in temperature compensation system that ensures accurate readings in all conditions. It also features an integrated self-calibration system for improved performance and reliability.