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Extech AN100 CFM/CMM Mini Thermo-Anemometer

The Extech AN100 provides the user with a large simultaneous display of airflow or air velocity with ambient temperature, making it the ideal choice for applications such as HVAC, Plant Maintenance and Ventilation Servicing

Next Day Delivery (subject to availability)

£107.00 excluding VAT £128.40 including VAT @ 20% Regular Price: £155.30
  • Air Volume Measurement
  • Temperature Measurement
  • Velocity Measurement
  • Battery Powered
  • Case Included
  • Min/Max Values
  • Data Storage
  • Large Backlit LCD Display
  • FreeDelivery
  • 30DayMoneyBack
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Extech AN100 CFM/CMM Thermo-Anemometer

The AN100 CFM/CMM Thermo-Anemometer can simultaneously display Air Flow or Air Velocity plus Ambient Temperature. Easy to set area dimensions (cm2) are stored in the meter's internal memory for the next power on. Additional features include: 20 point average for Air Flow and 3% velocity accuracy via low friction 2.83 in. D (72mm) ball bearing vane wheel on 3.9ft (120cm) cable. Comes complete with 9V battery, protective rubber holster and case.


 The Extech AN100 Comes Supplied With:

  • Vane sensor with 3.9ft (120cm) cable 
  • 9V battery 
  • Protective Rubber Holster 
  • Carrying case


Key Features:

         • Model AN100 - CFM/CMM Thermo-Anemometer

         • Simultaneous display of Ambient Temperature and Air Flow or Air Velocity

         • Up to 8 easy to set Area dimensions (ft 2 or cm2) are stored in the meter’s internal memory • 20 point average function for Air Flow

         • Super large LCD Backlit Display

         • 3% velocity accuracy via low friction 2.83"D (72mm) ball bearing vane wheel on 3.9ft (120cm) cable

         • Data Hold and MIN/MAX

         • Auto Power off



         • HVAC installation, repair, diagnostics, and optimization.

         • Fume hood testing, installation, and verification

         • Ventilation system installation, servicing, and analysis

         • Environmental wind and temperature testing/analysis

         • Boiler rooms • Ionizer flow output monitoring

         • Automobile aerodynamic testing

         • Plant/Facilities Maintenance

Specifications Range Resolution Basic Accuracy
Air Velocity 0.40 to 30.00 m/s
1.4 to 108.0 km/h
80 to 5906 ft/min
0.9 to 67.2 mph
0.8 to 58.3 knots
0.01 m/s
0.1 km/h
1 ft/min
0.1 mph
0.1 knots
±3% m/s
±3% km/h
±3% ft/min
±3% mph
±3% knots
Air Temperature 14 to 140°F (-10 to 60°C) 0.1°F/°C ±6.0°F (3°C)
Airflow 0 to 9999 CMM (m3/min)
0 to 9999 CFM (ft3/min)
Dimensions/Weight 7 x 2.9 x 1.3" (178 x 74 x 33mm)/1.6lbs (700g)

Standard FREE 3-5 Day Courier Delivery – UK Mainland only - Zones A & B
Included in the price for all orders over £40.00 (exc vat). Sent using express courier, delivered within 3-5 working days from the date of your order, subject to availability.

Standard 1-2 Day Express Courier Delivery – UK Mainland only - Zones A & B
£4.50 for all all orders under £40.00 (exc vat). Sent by express courier, delivered within 1-2 working days from the date of your order, subject to availability.

Express Courier 1-2 Day Delivery – UK Mainland only - Zones A & B
£4.50 select at the checkout. Sent using express courier.

Next Day Delivery – UK Mainland only - Zones A & B
£8.00 select at the checkout. Sent using express courier, orders must be placed before 3pm for next day delivery, subject to availability.

Saturday Pre 12am - UK Mainland only - Zones A & B
£15.00 select at the checkout. Sent using express courier, orders must be placed before 3pm for Saturday delivery.

Orders must be placed before 3pm for next day delivery and a telephone number supplied, subject to availability.
Please note that predicted delivery times are based on regular trading days Monday to Friday. Public holidays, bank holidays and weekends are outside the usual scope of our dispatch and therefore may incure additional days lead time to your order.

Orders requiring calibration. Whilst we take the greatest care to get all orders dispatched and delivered to you in the stated time frame, orders received late afternoon and requiring calibration may on occasion miss dispatch that day, according to the complexity of the calibration. Be assured they will ship on the next dispatch, this in most cases should not add more than 24 hours to you delivery.

Delivery Surcharges
Because of the high cost of carriage we need to apply a surcharge on all deliveries made in the following regions bringing the carriage charges to:

  • Zones A & B  - Mainland delivery rates apply. 
  • Zone C - Scottish Highlands. 
  • Zone D - Outer Hebrides, Orkney Isles, Shetland Isles, Isle of Man, Scilly Isles, and Channel Islands.
  • Zone E - Northern Ireland
  • Zone F - Republic of Ireland

New Postage Map Sept 2018> 

International delivery

International delivery charges are automatically added to your order at the checkout; you can also use the guide below for a guide on prices. For any questions regarding international deliveries please contact us at

If no shipping option is available to your selected country please call us on +44 (0) 1603 406 148 to purchase your items.