• Large display of airflow or air velocity
• Simultaneous display of air flow or air velocity plus ambient temperature
• Easy to set area dimensions (cm2) are stored in the meter's internal memory for the next power on
• 20 point average for air flow
• 3-percent velocity accuracy via low friction 2.83-Inch D (72mm) ball bearing vane wheel on 3.9-Feet (120cm) cable

The AN100-NIST CFM/CMM Thermo-Anemometer can simultaneously display Air Flow or Air Velocity plus Ambient Temperature. Easy to set area dimensions (ft² or m²) are stored in the meter's internal memory for the next power on. Additional features include: 20 point average for Air Flow and 3% velocity accuracy via low friction 2.83 in. D (72mm) ball bearing vane wheel on 3.9ft (120cm) cable. Comes complete with 9V battery, protective rubber holster and case. Includes certificate traceable to NIST.