Large Vane CFM/CMM Thermo-Anemometer

Large Vane CFM/CMM Thermo-Anemometer



Extech Meter for Measuring Air Velocity, Air Flow and Temperature


  • 4" Vane for More Precise Readings on Larger Size Ducts
  • Multipoint and Timed Average Calculations, Min/Max, and Data Hold
  • Sample Rate of 1 Reading per Second
  • NTC Precision Thermistor
  • Auto Shut Off After 20 Minutes to Preserve Battery


Air Velocity Range: 0.2-30 m/s, 40-5900 fpm
Accuracy: ±(1.5% rdg + 0.3 m/s), ±(1.5% rdg +59 fpm)
Resolution: 0.01 m/s, 1 fpm
Air Flow Range: 0-99999 m3/min, 0-99999 ft3/min
Resolution: 0.1 up to 9999.9 (Then 1.0)
Area Range: 0 to 99999cm2, 0 to 99999in2
Air Temperature Range: -20° to 60°C (-4° to 140°F)
Accuracy: ±0.6°C (-20° to 50°C), ±1.2°C (51° to 60°C), ±1.1°F (-5°to 122°F), ±2.2°F (123° to 140°F)
Resolution: 0.1°C/F
Sampling Rate Approximately 1 Reading Per Second
Temperature Sensor NTC Type Precision Thermistor
Power Source (4) AAA Batteries (User Replaceable)
Battery Life > 40 Hours
Battery Consumption 8.3 mA DC (Approximately)
Auto Shut Off After 20 Minutes
Operating Environment Temperature: 0°C to 50°C (32°F to 122°F)
Storage Environment Temperature: -10°C to 50°C (14°F to 122°F)
Operating Humidity <80% RH
Storage Humidity <90% RH
Weight 1.6 lbs.(725 grams)
Dimensions 269mm x 106mm x 51mm (10.6" x 4.2 " x 2")