The compact air flow monitors of the series LC 521... and LC 518 series detect air flows in exhaust and supply air lines in areas requiring sensors of Ex device category 3. A potentiometer is used to set the sensor to the desired value at a specified air flow. Devices with analog output as well as with switching output are available. Devices of the LC 521 series have a G1/2 thread, devices of the LC 518 series have a through M18 thread.
