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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

    At Test-Meter.co.uk we understand the importance of a reliable delivery service when shopping online. Especially when the goods are often essential to your working day. If your goods are required by a certain date please feel free to contact us for an honest and realistic indication whether this can be met. We aim to process all orders we receive within 1 to 3 working days, however from time to time we do have an increased demand for certain products or there might be delays from the manufacturer. In such cases delivery of your equipment may be subject to a minor delay.

    We use DPD/Interlink for all larger items and Royal Mail for smaller items and accessories. With DPD/Interlink you will receive a 1 hour delivery window on the day of delivery via e-mail/text and a notification 15 minutes before arrival so you will not have to wait around all day. You can even manage your booking online and re-arrange delivery for another date or arrange the goods to be left with a neighbour of your choice.

    We also offer delivery options for goods required urgently on certain products, all which are sent by DPD/Interlink.

    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 (this might exclude certain areas in the north of Scotland).

    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 or go to http://www.test-meter.co.uk/test-equipment-export for more information.

    For more information on delivery, please see our terms and conditions.