Extech Hot Wire CFM/CMM Thermo-Anemometer

Extech Hot Wire CFM/CMM Thermo-Anemometer


The Extech Hot Wire CMM/CFM Thermo-Anemometer reads air velocity and temperature on dual display.


  • Saves up to 36 readings
  • Telescoping probe extends to 7ft
  • Adjustable parameters for altitude and GAIN
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New sensor technology delivers major improvements in durability and ATC (Automatic Temperature Compensation) for accurate in-duct air velocity measurements with changing air temperatures. The Extech AN500 features an ergonomic directional handle and anti-rotation sensor that confirms probe direction and air flow direction are aligned for confident readings.The telescoping probe with ruler label ensures that measurements are made in the center of the duct even if out of reach, extending up to 7 feet.

The meter reads air velocity and temperature on dual display, and calculates CMM/CFM based on adjustable duct shape and size. The slim sensor of just 8mm fits easily in 3/8" holes. Parameters are also adjustable for altitude and GAIN. Notable features include min/max/avg, data hold, and auto power with disable. The meter can save and view 36 readings on display.

Notable Specifications:
  • m/s range: 0..2 to 20m/s
  • m/s max resolution: 0.01m/s
  • m/s basic accuracy: ±3%
  • ft/min range: 40 to 3940ft/min
  • ft/min max resolution: 1ft/min
  • ft/min basic accuracy: ±3%
  • MPH range: 0.5 to 45MPH
  • MPH max resolution: 0.1MPH
  • MPH basic accuracy: ±3%
  • Knots range: 0.4 to 40knots
  • Knots max resolution: 0.1knots
  • Knots basic accuracy: ±3%
  • km/h range: 0.7 to 75km/h
  • km/h max resolution: 0.1km/h
  • km/h basic accuracy: ±3%
  • CFM/CM Range: 0 to 999,999 CFM/CMM
  • CFM/CMM max resolution: 0.01
  • Temparature range: 32 to 140°F (0 to 60°C)
  • Temparature max resolution: 0.1°
  • Temparature basic accuracy: ±2°F (±1°C)
  • Dimensions/weight: 7.1 x 2.8 x 1.3" (180 x 72 x 32mm)/ 12.5oz (355g)
What's Included:
  • (1) Meter
  • (1) Telescoping probe with cable
  • (1) 100V-240V AC universal adapter with 4 plugs
  • (6) AA batteries
  • (1) Hard carrying case
Image Part # Product Description Price Stock Order
Extech Hot Wire CFM/CMM Thermo-Anemometer AN500 Hot wire CFM/CMM thermo-anemometer
Drop ships from manufacturer
Extech Hot Wire CFM/CMM Thermo-Anemometer AN500-NIST Hot wire CFM/CMM thermo-anemometer, NIST traceable
Drop ships from manufacturer

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