Flow meters in insect olfactometers are pivotal for researching insect olfactory responses. They precisely control and measure the rate of airflow, ensuring consistent and accurate delivery of odor stimuli to insects. This enables researchers to regulate the concentration of presented odors, allowing for comparative studies and repeatability. Flow meters also ensure the simultaneous testing of multiple odors, each maintaining its required flow rate. By managing airflow, they indirectly influence the behavior and choices of insects towards specific scents. Consequently, flow meters are indispensable tools for understanding insect behavior, facilitating studies in areas like pest control, pollination, and insect ecology.