• Extech 407123: Heavy Duty Hot Wire Thermo-Anemometer


Airflow meter with telescoping probe designed to fit into small openings.

The 407123 Heavy Duty Hot Wire Thermo-Anemometer uses a telescoping probe (extends up to 2 ft) which is ideal for use in ducts and ventilating systems. It can accurately measure Air Velocity and Temperature and simultaneously displays them on the dual LCD. Additional functions include Data Hold and Min/Max measuring modes. A built-in RS-232 interface can be used with optional Data Acquisition software and cable for recording measurements directly to your PC. Comes complete with telescoping probe with 5.5ft cable, and 6 x AA batteries.


  • Telescoping probe is ideal for measuring in HVAC ducts and other small vents.
  • Probe extends up to 7ft (2.1m).
  • Measure airflow down to 40ft/min.
  • Super large 1.4" (36mm) dual LCD display. Min/Max, Data Hold.

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407123_UM.pdf 241.64KB
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Extech 407123: Heavy Duty Hot Wire Thermo-Anemometer