This Anemometer with Flexible Precision Vane is ideal for HVAC technicians measuring heating, ventilation, air-conditioning, refrigeration, wind flow and temperature in residential, commercial and industrial air conditioning systems. It offers numerous functionsuse it to check air velocity FPM (feet per minute), air volume (flow) CFM (Cubic feet per minute) plus the remote vane allows greater measurement location flexibility. Switch between C and F. Input the area of airflow measurement to gain accurate air velocity results. Measure an air flow source for a continuous moving average for up to two hours. Determine minimum, maximum and average readings from a single point air source. Large dual display allows views of both air flow and velocity measurements plus temperature. Long extended flexible cord for remote vane access capabilities. All the measurements can be output to a computer for charting or analysis by optional model TM-SWA software and RS232 cable. Shipped in a deluxe hard carry case to protect and transport your Anemometer.