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    TESTO 405 Thermal Anemometer

    # 405

    • Measurement of air velocity, volumetric flow and air temperature
    • For measurements in ventilation ducts and in rooms
    • Particularly precise in the range between 0 and 2 m/s
    TESTO
    • TESTO
    • 405

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    • Measurement of air velocity, volumetric flow and air temperature
    • For measurements in ventilation ducts and in rooms
    • Particularly precise in the range between 0 and 2 m/s
    • Telescope extendible to 300 mm
    General technical data
    Weight 115 g (with batteries, without packaging)
    Dimensions 490 x 37 x 36 mm
    Operating temperature 0 to +50 °C
    Battery type 3 AAA micro batteries
    Battery life Approx. 20 h
    Display type LCD (Liquid Crystal Display)
    Length probe shaft 300 mm
    Diameter probe shaft 16 mm
    Diameter probe shaft tip 12 mm
    Storage temperature -20 to +70 °C
    Temperature – NTC
    Measuring range -20 to +50 °C
    Accuracy ±0.5 °C
    Resolution 0.1 °C
    Velocity -Thermal anemometer
    Measuring range 0 to 5 m/s (-20 to 0 °C)

    0 to 10 m/s (0 to +50 °C)

    0 to 99990 m³/h

    Accuracy ±(0.1 m/s + 5 % of mv) (0 to 2 m/s)

    ±(0.3 m/s + 5 % of mv) (Remaining Range)

    Resolution 0.01 m/s
    • Testo 405 thermal anemometer with permanently mounted telescope
    • Duct bracket
    • Attachment clip
    • Batteries

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