The Alnor/TSI RVA801 Airflow Model LCA301 Rotating Vane Anemometer is a tool designed for measuring air flow. This anemometer features a rotating vane design, providing accurate and reliable readings for various industrial and commercial applications. With the reputable ALNOR brand backing it, this model (LCA301) ensures quality and precision in airflow measurements, making it a valuable asset for professionals in need of such instruments for their work.