Extech Thermo-Anemometer Data Logger Hot Wire CFM – SDL350

In stock

This anemometer features a sensor which can withstand temperatures up to 122 degrees F, or 50 degrees C. Great for heat system testing and calibration. Also measures temperature.

Extech Thermo-Anemometer Data Logger Hot Wire CFM – SDL350

Air velocity meter with telescoping probe designed to fit into HVAC ducts and other small openings and can read down to 40ft/min


  • Probe extends up to 4.9ft (150cm) maximum length with cable
  • Data logger date/time stamps and stores readings on an SD card in Excel format for easy transfer to a PC
  • Selectable data sampling rate: 1 to 3600 seconds (1 hour)
  • Manually store/recall up to 99 readings
  • Type K/J thermocouple input for high temperature measurements
  • Large (9999 count) LCD displays air velocity and temperature simultaneously
  • Record/recall MIN/MAX readings
  • Data Hold plus Auto power off with disable function
  • Built-in PC interface
  • Comes complete with:
    • 6 AA batteries
    • SD card
    • Telescoping probe with cable
    • Hard carrying case
  • 3 year warranty

This thermo-anemometer measures not only the air speed but the air temperature as well. This makes this meter ideal for HVAC applications where hot air blowers are present. Check the air speed coming out of hot air vents as well as air conditioning units or fans. This meter can be put in place and left to data log readings with an adjustable sampling rate from 1 second all the way up to an hour.

The information is recorded onto a removable SD card for easy and fast data transfer to a PC. This meter also measures the air temperature, making it ideal for heat vents and heating system testing. The telescoping probe is also great for testing wind speeds up to 45 mph (31 knots). The SDL350 Thermo-Anemometer Data Logger Hot Wire CFM User Manual is attached to this page to answer any further questions.


  • Air Velocity:
    • m/s: 0.2 to 25m/s
    • ft/min: 40 to 3940ft/min
    • MPH: 0.9 to 45MPH
    • Knots: 1 to 31knots
    • km/h: 0.7 to 72km/h
  • Temperature: 32 to 122°F (0 to 50°C)
  • Type K Temperature: -148 to 2372°F (-100 to 1300°C)
  • Type J Temperature: -148 to 2192°F (-100 to 1200°C)
  • Memory: 20,000K data records using 2G SD card
  • Dimensions: 7.2 x 2.9 x 1.9" (182 x 73 x 47.5mm)
  • Weight: 23.1oz (480g)

Unit Ship Weight: 1.5 lbs

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