The FM-200 Series is a bi-directional digital flow sensor for use with air or Nitrogen gas. It offers high precision detection in an ultra small package, thanks to the utilization of MEMS technology. The series covers a wide range of flow rates and has a wide range of I/O options standard, such as dual discrete outputs, an analog voltage output, and an external input. Dual digital display: The integrated two-color dual digital display offers quick and easy verification of the sensor's operation, including flow rate, direction, and output condition. Bi-Directional flow detection: The unique sensor chip of the FM-200 allows for flow sensing in both directions. The unit utilizes two temperature sensors, one on each side of a heater element, to determine the heat distribution. This concept provides accurate detection, regardless of flow direction.