Check the listing for details. Dwyer AVU-3-A Air Velocity Transmitter. Condition: Used. Listed at 120.00 USD. The Dwyer AVU-3-A Air Velocity Transmitter is an essential tool for measuring airflow in various industrial applications. Its high-quality construction and advanced features make it a reliable choice for professionals who need accurate readings. This transmitter is designed to work with a wide range of instruments and is ideal for use in testing, measuring, and inspecting equipment. With its durable construction and reliable performance, the Dwyer AVU-3-A Air Velocity Transmitter is perfect for use in a variety of industrial settings. It is also easy to install and operate, making it a great choice for businesses that need to measure airflow accurately. This transmitter is ideal for use with anemometers and other airflow measuring instruments, and is sure to provide accurate and reliable readings.