A digital airflow meter is a device used to measure the flow rate of air or other gases. It is typically used in applications such as HVAC systems, automotive engines, and industrial processes. The digital airflow meter works by measuring the pressure drop across a known orifice. This pressure drop is then converted into a digital signal, which is then used to calculate the flow rate. Digital airflow meters are often used in place of traditional mechanical meters, as they are more accurate and reliable. They also offer the ability to measure a wider range of airflows than mechanical meters. Digital airflow meters are also much easier to install and maintain, as they do not require any moving parts.