Ducted Airflow Measurement
The health and comfort of building occupants start with clean, well-balanced indoor air—and that begins with precise airflow control.Building management systems depend on accurate ducted airflow measurements to regulate temperature, maintain proper ventilation, and move contaminated air away from occupied spaces. By monitoring air velocity, these systems also help minimize energy use and reduce environmental impact.
Air Monitor delivers industry-leading accuracy—whether through Differential Pressure or Thermal measurement, we achieve up to 3% total system accuracy, ensuring dependable performance for any ducted airflow application.
Air Monitor Solutions Can Help You
Maintain NIST Traceable Accuracy
Our ELECTRA-flo Airflow measurement systems feature probe arrays that utilize thermal dispersion technology in multi-point probes with a NIST traceable accuracy of ±2% of actual flow.Achieve Performance Standards with AMCA Certification
Air Monitor’s AMCA-certified airflow stations provide extremely accurate ducted airflow measurements even in turbulent flow situations.Ensure Startup Success
Get up and running with factory configuration and dedicated customer support. Our pressure & airflow transmitters come individually calibrated, with all settings and outputs pre- configured for your application.Speak With an Application Engineer
Ducted Airflow Measurement Products
ELECTRA-flo 5 Series Thermal Airflow Measurement System
Air Monitor’s ELECTRA-flo 5 Series thermal dispersion airflow measurement instruments accurately measure airflow and temperature in commercial HVAC systems for applications such as indoor air quality management.
The system features insertion-style probes with a daisy chain probe connection and a single home run cable connection to the transmitter.
- Easy startup and commissioning – The G5 transmitter with graphical LCD touchpad displays 3-point field characterizations, including standard cubic feet per minute
- Robust sensors make preventive maintenance easy
- Factory configured
ELECTRA-flo/CM Thermal Airflow Measurement Station
This airflow measurement station provides all of the benefits of the ELECTRA-flo 5 system inside of a fully flanged probe casing that allows for a quick installation by bolting it in line with the duct. Comes with a honeycomb air straightener to give high accuracy in limited duct straight-run situations.
FAN-E Pitot Airflow Measurement Traverse Station
This pitot technology airflow station comes welded inside an aluminum flanged casing that allows for a quick and easy installation. The station consists of probe arrays mounted in fan inlets or ducts capable of continuously measuring the air volume/velocity and airflow temperature. Included are honeycomb airflow straighteners that reduce the need for duct straight run.
- AMCA certified
- Reliable and time-tested, with installs over 40 years old
- Pneumatically connects the high and low-pressure ports to a differential pressure transmitter
- Directly measures the air pressure
- Very robust, requiring little to no maintenance
VELTRON DPT 2500-plus Transmitter
This differential pressure transmitter measures the pressure inputs from the airflow station.
- Factory configured
- .25% full scale accuracy
- Auto zero function – eliminates ‘zero’ drift
VELTRON III Transmitter
This differential pressure transmitter measures the pressure inputs from the airflow station.
- 3% of reading accuracy throughout the entire flow range
- Factory configured
- Easy commissioning – 3-point field characterization
- Can take a temperature reading and do density compensation
- Touchpad digital display
VOLU-probe Pitot Airflow Measurement Traverse Probe
Insertion style probes that are:
- Cost-effective
- AMCA certified
- Time-tested, with installs over 40 years old.
- Pneumatically connect the high and low-pressure ports to a differential pressure transmitter
- Directly measuring the static pressure
- Very robust and reliable, requiring little to no maintenance
VOLU-probe/VS Pitot Airflow Measurement Traverse Station
The VOLU-probe/VS Station is licensed to bear the AMCA Certified Ratings Seal for Airflow Measurement Station Performance. This certification ensures extremely accurate airflow measurements (2% of actual flow or better) under turbulent, rotating, and multi-directional air flows normally present in discharge ducts.
This airflow station features pitot sensors welded inside an aluminum flanged casing, allowing for quick and easy installation in line with the ductwork.
- Time-tested, with installs over 40 years old.
- Pneumatically connect the high and low-pressure ports to a differential pressure transmitter
- Directly measures the air pressure
- Very robust and reliable, and requires little to no maintenance.
Ducted Airflow Measurement Solutions
Accurate measurements of airflow in building ducts provide the real-time, actionable information required for the safe, code-compliant, and efficient operation of today’s high-performance buildings.
Many duct configurations present challenges where there isn’t enough straight run before and after the measurement station to allow accurate airflow readings. In these situations, adding open, parallel cell, honeycomb panels to “process” the air can straighten the flow just before the total pressure measurement plane.
In these situations, adding an Air Monitor provided air straightener in the airflow station can help smooth out the turbulent airflow profile just before the total pressure measurement plane to improve the airflow measurement.
Thermal probes, such as those found in the Electra-flo 5 Series, will require maintenance if they get too dirty, so it’s important to add access points for these installations. Also, thermal probes cannot work in areas with excessive moisture in the system – in those cases, pitot sensors should be used, such as in the VOLU-probe/VS Pitot Airflow Measurement Traverse Station.
News & Innovation
Understanding Thermal Dispersion Airflow Measurement
Thermal airflow measurement technology works well in ducted environments where common upstream and downstream obstructions are well-defined and understood.More about the VELTRON III Pressure & Airflow Transmitter
A pivotal addition to the HVAC industry, the Air Monitor VELTRON III is designed for cutting-edge building airflow distribution systems.Product Brochures & Catalog Sheets
Here you can download the product information for all Air Monitor VOLU-probe and ELECTRA-flo 5 series airflow measurement stations and the VELTRON series transmitters.-
DPT-100 Pressure & Flow Transmitter
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ELECTRA-flo 5 Series Thermal Airflow Measurement System
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ELECTRA-flo/CM Thermal Airflow Measurement Station
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FAN-E Pitot Airflow Measurement Traverse Station
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VELTRON DPT 2500-plus Transmitter
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VELTRON III Transmitter
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VOLU-probe Pitot Airflow Measurement Traverse Probe
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VOLU-probe/VS Pitot Airflow Measurement Traverse Station
