Industrial large vane anemometer measures wind speed (0.2–30 m/s), airflow, CO2, temperature, humidity, and dew point. This large vane anemometer is great for HVAC, fans, ventilation, environmental monitoring, aviation, and marine use.
Specification
Model |
ATO-AZ8919 |
Wind Speed Range |
0.2~30 m/s |
Wind Speed Accuracy |
<20 m/s: ±1.5% + 0.3 m/s; ≥20 m/s: ±3% + 0.3 m/s |
CO2 Measurement Range |
0~9999 ppm (5001~9999 ppm exceeds standard range) |
CO2 Accuracy |
±30 ppm ±5% |
Temperature Range |
-20~60°C |
Temperature Resolution |
0.1°C/°F |
Temperature Accuracy |
±0.6°C |
Humidity Range |
0.1%RH~99.9%RH |
Humidity Resolution |
0.1%RH |
Humidity Accuracy |
±3%RH (25°C, 10~90%RH), ±5%RH for others |
Temperature Response Time |
60s (typical) |
Data Update |
Every second |
Globe Temperature Display |
-20~59.9°C |
Dew Point Temperature Display |
-5~59.9°C |
Air Volume Display |
0 to 999999 m³/min |
Air Volume Resolution |
0.1 (0 to 9999.9) or 1 (10000 to 999999) |
Device Dimensions |
269*106*51 mm |
Feature

- This industrial anemometer accurately measures wind speed, air volume, temperature, humidity, wet bulb temperature, and dew point.
- Equipped with a large LCD screen for clear, easy-to-read data.
- Supports multi-point and timed averaging for more reliable measurements.
- The vane anemometer offers selectable metric and imperial units for flexibility in different regions.
- Assists with airflow calculations using circular or square duct measurement modes.
- Delivers fast response times and precise readings.
- Automatically calculates dew point and wet bulb temperature.
- Includes a low battery warning to prevent sudden shutdown.
- Backlight function makes the large vane anemometer easy to operate in dark or low-light environments.
- Handheld and portable design for convenient use in the field.
Button Description

① |
Press this key to toggle the upper display parameters. |
Press and hold to enter average mode. |
In average mode, press this key to average and return to normal mode. |
In setting mode, press this key to select a category or to increase the setting value. |
② |
Press this key to toggle the display parameters below. |
In average mode, press this key to view the recorded value and the average reading of all parameters. |
In setting mode, press this key to select a category or to reduce the setting value. |
③ |
Locks the screen to the current reading. |
Press and hold to view minimum and maximum values. |
In average mode, press this key to record data or start time recording. |
In setting mode, press this key to enter data setting. |
④ |
Switch On/Off Button |
Press and hold this key to enter and leave the setting mode. |
Application
Industrial large vane anemometer are widely used in the aviation industry, marine applications, environmental protection, monitoring, various fan manufacturing industries, as well as ventilation and air conditioning systems.
Tips: What advantages does a large vane sensor provide compared to smaller ones?
Large vane anemometers are more stable and accurate in measuring airflow, especially at lower speeds. The wider sensing surface captures more airflow, reducing turbulence and enhancing measurement reliability. This is particularly important in HVAC systems with large ducts, where stable and consistent readings are necessary for precise diagnostics and performance testing.