Extech
Handheld test & measurement instruments — humidity, temperature, water quality, power, and more
Extech Air Flow Meters
23 products across 16 product families
3 modelsAN300 Large Vane Thermo-Anemometer
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407123-NIST Anemometer w/ NIST 407123
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.
2 modelsAN100 Anemometer CFM/Cmm
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2 modelsAN200 Anemometer
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2 modelsAN310 Large Vane Anemometer/Psychrometer
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2 modelsSDL350 Hot Wire Thermo-Anemometer SD Logger
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407119 Anemometer, Hot Wire, CFM Heavy Duty
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.

45118 Thermo-Anemometer, Mini
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.

45158 Anemometer, RH/Temp, Mini
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.

45168CP Thermo-Anemometer Mini with 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.

AN250W Airflow Meter 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.

AN340 Mini Vane Anemometer/Psychrometer/Logger
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.

HD350 Pitot Tube + Anemometer Diff Manometer
The HD350 is a Pitot tube anemometer and differential manometer. Measures Differential pressure in 5 selectable units of measure and includes a Pitot tube and 2 connection hoses for measuring Air Velocity/Air Flow. Additional features include data hold, auto power off, zero function, plus manually record/recall up to 99 readings. Built-in USB port. Complete with software and USB cable, 9V battery, pitot tube with two 33.5 in. (85 cm) connection hoses and hard carrying case.

SDL300 Metal Vane Thermo-Anemometer SD Logger
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.

SDL310 Thermo-Anemometer SD Logger
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.
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