The EFM411-M359 is a part of the Teledyne Engineered Systems series of gas flow sensors. It is designed to measure mass or volume flow of industrial gases and has a range up to 10,000 sccm for nitrogen, oxygen, and argon. The remote sensing elements with 4-20mA output provide long term, reliable operation. The on-board calibration and diagnostic features facilitate accurate and easy setup. The sensor can be used in a variety of applications including chemical, medical, fuel cell, natural gas, and environmental monitoring.