Bosch Mass Air Flow Sensor - 0281002531 - The Bosch Mass Air Flow Sensor is a reliable and accurate device for measuring the mass air flow rate in an engine. It features a robust and compact design, and is easy to install. The sensor is equipped with a wide range of features such as a high-precision thermistor, a fast response time, and a wide dynamic range. It is suitable for a variety of applications including automotive, marine, and industrial.