Support Center

HVAC & Air Quality - Air Flow Meters

All Products (25) Grid view Grid view List View List View

Extech 407113

Heavy Duty CFM Metal Vane Anemometer

The 407113 CFM Metal Vane Anemometer measures Air Velocity from 100 to 6890 ft./min, 0.5 to 126 m/sec, 1.8 to 126 km/hr, 1.1 to 78.3 mph, and 1.0 to 68 knots with an accuracy of ±2% Of Velocity. Meter also measures 0 to 999,900 Cubic Feet Per Minute, 0 to 999,900 Cubic Meters Per Minute, and Temperature from 32 to 175°F/0 to 80°C. Anemometer features Min/Max, Data Hold, and Auto Power off. Comes complete with metal vane with 3.9ft cable, 9V battery, holster with stand, and hard carrying case.

Extech 407119

Heavy Duty CFM Hot Wire Thermo-Anemometer

The 407119 Heavy Duty CFM Hot Wire Thermo--Anemometer uses a telescoping probe (extends up to 3 ft) which is ideal for use in ducts and ventilating systems. It can accurately measure Air Flow (CFM/CMM), Air Velocity and Temperature. Air Flow can be displayed as an instantaneous value or up to a 20 point average. Additional functions include Data Hold, Min/Max, and Auto power off. Comes complete with telescoping probe with 5.5ft cable, and 4 x AA batteries.

Extech 407123

Heavy Duty Hot Wire Thermo-Anemometer

The 407123 Heavy Duty Hot Wire Thermo-Anemometer uses a telescoping probe (extends up to 2 ft) which is ideal for use in ducts and ventilating systems. It can accurately measure Air Velocity and Temperature and simultaneously displays them on the dual LCD. Additional functions include Data Hold and Min/Max measuring modes. Comes complete with telescoping probe with 5.5ft cable, and 6 x AA batteries.

Extech 45116

Replacement Impeller

The Extech 45116 is a pair of replacement impellers for the 45118 Anemometer.

Extech 45118

Mini Thermo-Anemometer

The 45118 is a Waterproof pocket sized Thermo-Anemometer for Air Velocity, Temperature and Wind-chill measurements. Simultaneously display Air Velocity and Temperature or Wind-chill on the LCD screen. Selectable averaging function of 5, 10, or 13 second intervals. Fold up protective housing extends to 9 in. (229mm) for a better reach. Tripod mountable. Features Data Hold with Auto power off functions. Complete with battery and 43 in. lanyard.

Extech 45156

The Extech 45156 is a plastic replacement impeller for the model 45158.

Extech 45158

Mini Thermo-Anemometer with Humidity

The Extech 45158 is a waterproof, pocket sized Thermo-Anemometer for air velocity, temperature, and wind chill measurements. Simultaneously display air velocity and temperature or wind chill on the LCD screen. It features selectable averaging functions of 5, 10, or 13 second intervals, as well as data hold and auto power off functions. The fold up, protective housing extends to 229 mm (9 in) for a better reach. The 45158 is tripod mountable and comes with a battery and 109.2 cm (43 in) lanyard.

Extech 45160

3-in-1 Humidity, Temperature and Airflow meter

The Extech 45160 is a rugged 3-in-1 meter that measures humidity, temperature and air velocity. High temperature measurements can be made using the Type K thermocouple input. Features include data hold, min/max, auto power off with disable, and low battery indication. Comes complete with wrist strap and 9 V battery.

Extech 45168CP

Mini Thermo-Anemometer with Built-in Compass

The Extech 45168CP is a Mini Thermo-Anemometer which measures windspeed in ft/min, MPH, m/s, km/h, knots and in beaufort force with 10 second averaging function. Additional measurements include temperature, relative humidity, dew point, wet bulb, and windchill. The built-in compass provides wind direction and 360° readings, plus it has an easy-to-use calibration procedure for improved accuracy. Its water resistant housing floats and drop-tested to 1.8 m (6 ft). Featuring a replaceable, non-corrosive, plastic wind vane (impeller) and a tripod mount for hands free use. Complete with a CR2032 battery and a lanyard.

Extech AN10

Pocket Series Anemometer

The Extech AN10 is a convenient Pocket Series Aemometer that is easy to use and easy to stow. Keep one handy for whenever you need to take a quick air velocity measurement from 0.8 km/h to 72 km/h (80 ft/min to 3936 ft/min). Features a large, backlit LCD display and a double-molded side grip. Complete with 9 V battery. CE certified.

Extech AN100

CFM/CMM Mini Thermo-Anemometer

The AN100 CFM/CMM Thermo-Anemometer can simultaneously display Air Flow or Air Velocity plus Ambient Temperature. Easy to set area dimensions (ft² or m²) 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.

Extech AN200

CFM/CMM Mini Thermo-Anemometer with built-in InfraRed Thermometer

AN200 is a CFM/CMM Mini Thermo-Anemometer with built-in InfraRed Thermometer. Built-in non-contact IR Thermometer measures remote surface temperatures to 500°F (260°C) with 8:1 distance to spot ratio and Laser Pointer. This CFM/CMM Thermo-Anemometer can simultaneously display of Air Flow or Air Velocity plus Ambient Temperature. Easy to set area dimensions (ft² or m²) 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 9-Volt battery, protective rubber holster, and case.

Extech AN250W

Anemometer with Connectivity to ExView® App

The AN250W is a compact airflow meter with Bluetooth® connectivity, which allows building, HVAC, and maintenance professionals to view and share air velocity and temperature data directly from a mobile device using the free ExView app. With the capability to capture data, display trends, set visual and audio alarms, and create and send reports, users can gain deeper insights on environmental conditions and building health. The AN250W is part of the Extech 250W Connected Series of products that can improve your ability to evaluate problems and report on them from the field. This allows you to improve the speed and quality of decisions to address critical issues immediately.

Extech AN300

Large Vane CFM/CMM Thermo-Anemometer

The AN300 is a Large Vane CFM/CMM Thermo-Anemometer. This meter measures Air Velocity, Air Flow and Temperature. Extech’s Large Vane Thermo-Anemometer series allows for more precise readings on larger size ducts. Each meter simultaneously displays Airflow or Air Velocity and Temperature. Complete with 4 AAA batteries and hard carrying case.

Extech AN300-C

Airflow Cone and Funnel Adapter Kit for AN300, AN310, AN320

The Extech AN300-C is an Airflow Cone and Funnel Adapter Kit. For use with the AN300, AN310, AN320 meters. The accessory kit allows for quick and easy airflow measurements in common large size ducts.

Extech AN310

Large Vane CFM/CMM Anemometer/Psychrometer

The AN310 is a Large Vane CFM/CMM Anemometer/Psychrometer. This meter measures Air Velocity, Air Flow, Relative Humidity, Wet Bulb and Dew Point. Extech’s Large Vane Thermo-Anemometer series allows for more precise readings on larger size ducts. With Min/Max, Data Hold, and Auto power off functions. Complete with 4 AAA batteries and hard carrying case.

Extech AN320

Large Vane CFM/CMM Anemometer/Psychrometer plus CO2

The Extech AN320 is a Large Vane CFM/CMM Anemometer/Psychrometer plus CO2. This meter measures air velocity, air flow, relative humidity, wet bulb, dew point and carbon dioxide. Extech’s Large Vane Thermo-Anemometer series allows for more precise readings on larger size ducts. It includes min/max, data hold, and auto power off functions. Complete with 4 AAA batteries and hard carrying case.

Extech AN340

CMM/CFM Anemometer/Psychrometer Datalogger

The AN340 is a CMM/CFM Anemometer/Psychrometer Data logger. This meter measures Air Velocity/Volume, Temperature, Humidity, Wet Bulb, and Dew Point. User can store up to 12,000 readings for data analysis. Manually store/recall up to 99 reading. Complete with external mini vane probe, Windows compatible software, USB cable, 6 AAA batteries, and hard carrying case.

Extech AN500

Hot Wire CFM/CMM Thermo-Anemometer

The Extech AN500 is a Hot Wire CFM/CMM Thermo-Anemometer. New sensor technology delivers major improvements in its durability and ATC (automatic temperature compensation) for accurate, in-duct, air velocity measurements with changing air temperatures. Its telescoping probe with ruler label ensures that measurements are made in the center of the duct, even if it is out of reach. Its ergonomic directional handle and anti-rotation sensor confirms that the probe direction and airflow direction are aligned for confident readings. Complete with telescoping probe with cable, 100 V to 240 V AC universal adaptor with 4 plugs, 6 batteries, and a hard carrying case.

Extech AN510

CMM/CFM Anemometer + Type-K

The Extech AN510 is a convenient 4-in-1 Anemometer that measures air velocity, air flow, air temperature, and Type-K temperature. Includes a built-in low friction ball bearing mini vane wheel for high accuracy. The Type-K temperature probe function measures surface temperature up to 1300°C (2372°F). It features large dual LCD with backlighting, data hold, and min/max function.

Extech EN100-V

2 Pack Mini Impeller

The Extech EN100-V 2 Pack Mini Impeller is a set of two replacement vanes for the EN100 and EN150 Environmental Meters.

Extech HD300

CFM/CMM Thermo-Anemometer with built-in InfraRed Thermometer

The Extech HD300 is a Thermo-Anemometer with an Infrared Thermometer that measures remote surface temperatures to 500°C (932°F) with a 30:1 distance to target ratio and laser pointer. It can simultaneously display air flow in CFM/CMM or air velocity, plus ambient temperature. This meter has easy to set area dimensions that are stored in the meter's internal memory for the next power on. Additional features include a 9999 count LCD backlit display, 20 point average for airflow, and a heavy duty rugged double molded housing. Comes complete with a vane sensor with 120 cm (3.9 ft) cable, software with cable, carrying case, and 9 V battery.

Extech SDL300

Metal Vane Thermo-Anemometer/Datalogger

The SDL300 records data on an SD card in Excel format. Metal Vane withstands temperatures to 158°F (70°C) and air velocity to 6900ft/min. Datalogger date/time stamps and stores readings on an SD card in Excel format for easy transfer to a PC. Adjustable data sampling rate from 1 to 3600 seconds. Stores 99 readings manually and 20M readings via 2G SD card. Type K/J Thermocouple input for high temperature measurements. Large (9999 count) LCD displays Air Velocity and Temperature simultaneously. 2% velocity accuracy via low friction ball bearing vane wheel on 39" (1m) cable. Record/Recall MIN, MAX, Data Hold, Auto Power Off. Complete with 6 x AA batteries, SD card, metal vane sensor with 3.9ft (120cm) cable, and hard carrying case.

Extech SDL310

Clamp-on Ground Resistance Tester

The SDL310 records data on an SD card in Excel format. Measures Air Temperature to 122°F (50°C) and air velocity to 4930ft/min. Stores 99 readings manually and 20M readings via 2G SD card. Stores 99 readings manually and 20M readings via 2G SD card. Type K/J Thermocouple input for high temperature measurements. Large (9999 count) LCD displays Air Velocity and Temperature simultaneously. 2% velocity accuracy via low friction ball bearing vane wheel on 39 in. (1m) cable. Record/Recall Min, Max, Data Hold and Auto power off. Adjustable data sampling rate. Complete with 6 x AA batteries, SD card, vane sensor with 3.9ft (120cm) cable, and hard carrying case.