IFM-Electronic-SL5101-Airflow-Monitor-Sensor-Relay-Output-IFM-Electronic-SL5101-This-airflow-sensor-is-used-for-monitoring-airflow-&-providing-a-relay-output-when-flow-is-present-within-the-range-1-to-10m-s-The-sensor-has-a-cylindrical-body-&-a-titanium-sensor-&-the-process-status-is-indicated-by-two-LEDs-green-for-flow-present-&-red-for-no-flow-within-the-setting-range-The-sensor-also-features-a-power-on-delay-time-&-an-adjustable-response-time-IFM-SL5101-Airflow-Monitor-Sens