Available in 3 port sizes with total of 8 flow rate ranges of 0.5–1,000 Lpm, SUNX FM-200 Series is bidirectional digital flow sensor for use with air or nitrogen gas that offers high precision detection of 3% F.S. Unit uses 2 temperature sensors, one on each side of a heater element, to determine heat distribution, providing accurate detection, regardless of flow direction. It has ability to display real time flow rate of any process and can function as a flow meter.