Extech AN25 Heat Index Anemometer

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  • Measure up to 7 environmental parameters including Air Velocity and Heat Index
  • Humidity, Ambient Temperature, Dew Point, Wet Bulb, WBGT, Temperature, Windchill
  • Features a replaceable mini impeller (vane)
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"Capable of measuring up to 7 environmental parameters"

  • Description

    Extech AN25 Heat Index Anemometer

    Capable of measuring up to 7 environmental parameters, the Extech AN25 Heat Index Anemometer is the ideal compact solution for a range of indoor or outdoor needs.

    With built-in sensors to measure Air Velocity, Heat Index, Wet Bulb Globe Temperature (WBGT), Humidity, Ambient Temperature, Dew Point, Wet Bulb, Temperature and Windchill, the AN25 is a truly versatile instrument.

    Offering Min/Max/Average readings (5sec/10sec/13), plus data hold and auto power off functionality, the AN25 features a replaceable mini impeller (vane) and comes complete with CR2032 battery.

  • Specification

    Air Velocity

    • ft/min: 80 to 4920ft/min range, 0.1ft/min, 1ft/min (>1000ft/min) resolution, ±3% FS basic accuracy
    • m/s: 0.4 to 25m/s range, 0.1m/s resolution, ±3% FS basic accuracy
    • km/h: 1.4 to 90.0km/h range, 0.1km/h resolution, ±3% FS basic accuracy
    • mph: 0.9 to 55.9mph range, 0.1mph resolution, ±3% FS basic accuracy
    • knots: 0.8 to 48.6 knots range, 0.1 knots resolution, ±3% FS basic accuracy


    • Range: 5 to 122°F (-15 to 50°C)
    • Resolution:  0.1°F/C
    • Basic Accuracy: ±2°F/1°C

    Relative Humidity

    • Range: 5.0 to 95.0%RH 
    • Resolution:  0.1%RH
    • Basic Accuracy: ±3%

    Wet Bulb

    • Range: 5 to 122°F (-15 to 50°C) 
    • Resolution: 0.1°F/°C

    Dew Point

    • Range: -103 to 122°F (-75 to 50°C)
    • Resolution: 0.1°F/°C

    Heat Index

    • Range: -31 to 401°F (-35 to 205°C)
    • Resolution: 0.1°F/°C


    • Range: -20.2 to 130°F (-29 to 54.5°C)
    • Resolution: 0.1°F/°C


    • DImensions / Weight: 6x1.6x0.7" (152x40x18mm) / 2.1oz (60g)
  • Product Documents

    Product Attachments

    View FileExtech AN25 Heat Index Anemometer    Size: (413.84 KB)
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  • Delivery Information

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    Our charges for UK deliveries:

    • FREE Delivery (on select products only): typically 3-5 working days*
    • Standard Delivery at £4.95: 2-3 working days
    • Next Working Day Delivery (on select products only) at £7.50
    • Pre-Noon Next Working Day Delivery (on select products only) at £9.50*
    • Pre-10.30am Next Working Day Delivery (on select products only) at £18.50*
    • Saturday Pre-Noon Delivery (on select products only) at £14.50*
    • Sunday Pre-Noon Delivery (on select products only) at £14.50*

    *UK mainland only

    NOTE! For next working day or Saturday/Sunday delivery options the order MUST be placed no later than 3pm on the working day before delivery is required. After 3pm, please arrange with our staff before selecting a priority delivery service. Priority services are available to UK mainland residents only.

    Customers outside the UK:

    Test-Meter.co.uk exports to many countries all over the world. Prices for shipping vary on location and weight/dimensions. Costs are calculated for certain countries at the checkout. If your country is not included in this list please e-mail admin@test-meter.co.uk with your name, address and the items you would like to order for an accurate shipping quote.