The TA641B Digital Anemometer is a professional handheld airflow measurement instrument, also known as a portable anemometer, air velocity meter, wind speed meter, airflow tester, or wind temperature and humidity meter. Equipped with a precision vane sensor, it provides fast and accurate air velocity measurement while simultaneously monitoring air temperature and ambient humidity for comprehensive environmental analysis. Supporting multiple selectable wind speed units including m/s, km/h, ft/min, mile/h, and knots, the digital anemometer features practical functions such as data hold, maximum/minimum/average value recording, high/low alarm settings, and backlit display. Its compact and lightweight design makes it suitable for field inspections, HVAC commissioning, ventilation system testing, industrial maintenance, and environmental monitoring applications. The TA641 Series Digital Anemometer is widely used in HVAC systems, building ventilation inspection, air conditioning maintenance, industrial manufacturing, power plants, steel and metallurgy industries, petrochemical facilities, aerospace applications, fan manufacturers, underground spaces, warehouses, laboratories, cleanrooms, weather observation, and outdoor environmental testing. It is ideal for applications such as duct airflow measurement, ventilation performance evaluation, fan testing, air circulation analysis, air quality assessment, and airflow monitoring in both indoor and outdoor environments.

The TA643A High Accuracy Thermal Anemometer is a professional air velocity measurement instrument designed for accurate airflow testing, especially in low-speed airflow environments. Featuring a highly sensitive thermal sensing telescopic probe, it provides precise measurement of air velocity, air temperature, and airflow volume with a wide velocity range of 0.06 to 45.00 m/s. As a professional thermal anemometer, digital anemometer, air velocity meter, and airflow measurement instrument, the TA643A adopts a slim retractable probe design, allowing measurements in narrow spaces, inside air ducts, equipment openings, and clean environments. It is widely used for HVAC system commissioning, ventilation testing, cleanroom airflow verification, laboratory airflow measurement, fan performance testing, and industrial air circulation analysis. The instrument supports customized duct area settings and automatically calculates airflow volume, with multiple selectable units for velocity and airflow measurement. Equipped with a VA color display, built-in memory for up to 1000 data records, and USB communication capability, the TA643A enables real-time data acquisition, airflow trend analysis, and measurement report generation through computer software. With high measurement accuracy, portable design, and intelligent data management functions, this air velocity tester and airflow meter is ideal for applications in HVAC engineering, building ventilation inspection, air purification systems, electronics manufacturing, equipment cooling analysis, environmental monitoring, power plants, industrial facilities, and scientific research laboratories.

The TA642 Series High Accuracy Digital Anemometer is a professional handheld air velocity and airflow measurement instrument designed for accurate measurement of air speed, air volume and ambient temperature. The series includes integrated models TA642A and TA642B, as well as the split probe model TA642C, providing flexible solutions for different testing environments. Equipped with a high-performance infrared waveguide sensor, the TA642 Digital Anemometer delivers fast response, stable readings and reliable measurement performance. It is widely used in HVAC systems, air conditioning duct testing, ventilation system commissioning, cleanroom airflow inspection, industrial ventilation monitoring, exhaust systems, building engineering acceptance and environmental testing. The instrument supports multiple air velocity and airflow units, with customizable duct cross-sectional area settings for automatic airflow calculation. It is suitable for measuring airflow in round ducts, rectangular ducts and various ventilation systems. The TA642B and TA642C models feature built-in data logging and USB communication functions, allowing connection with a computer for real-time data acquisition, historical data export, measurement curve analysis and report generation, making testing records easier to manage and trace. With practical functions including data hold, MAX/MIN recording, high/low alarm settings, automatic power-off and low battery indication, the compact and portable TA642 Series Air Velocity Meter is an ideal solution for HVAC professionals, engineers, technicians, manufacturers, laboratories and educational institutions.

The TA642 Series High Accuracy Digital Anemometer is a professional handheld air velocity and airflow measurement instrument designed for accurate measurement of air speed, air volume and ambient temperature. The series includes integrated models TA642A and TA642B, as well as the split probe model TA642C, providing flexible solutions for different testing environments. Equipped with a high-performance infrared waveguide sensor, the TA642 Digital Anemometer delivers fast response, stable readings and reliable measurement performance. It is widely used in HVAC systems, air conditioning duct testing, ventilation system commissioning, cleanroom airflow inspection, industrial ventilation monitoring, exhaust systems, building engineering acceptance and environmental testing. The instrument supports multiple air velocity and airflow units, with customizable duct cross-sectional area settings for automatic airflow calculation. It is suitable for measuring airflow in round ducts, rectangular ducts and various ventilation systems. The TA642B and TA642C models feature built-in data logging and USB communication functions, allowing connection with a computer for real-time data acquisition, historical data export, measurement curve analysis and report generation, making testing records easier to manage and trace. With practical functions including data hold, MAX/MIN recording, high/low alarm settings, automatic power-off and low battery indication, the compact and portable TA642 Series Air Velocity Meter is an ideal solution for HVAC professionals, engineers, technicians, manufacturers, laboratories and educational institutions.

The TA642 Series High Accuracy Digital Anemometer is a professional handheld air velocity and airflow measurement instrument designed for accurate measurement of air speed, air volume and ambient temperature. The series includes integrated models TA642A and TA642B, as well as the split probe model TA642C, providing flexible solutions for different testing environments. Equipped with a high-performance infrared waveguide sensor, the TA642 Digital Anemometer delivers fast response, stable readings and reliable measurement performance. It is widely used in HVAC systems, air conditioning duct testing, ventilation system commissioning, cleanroom airflow inspection, industrial ventilation monitoring, exhaust systems, building engineering acceptance and environmental testing. The instrument supports multiple air velocity and airflow units, with customizable duct cross-sectional area settings for automatic airflow calculation. It is suitable for measuring airflow in round ducts, rectangular ducts and various ventilation systems. The TA642B and TA642C models feature built-in data logging and USB communication functions, allowing connection with a computer for real-time data acquisition, historical data export, measurement curve analysis and report generation, making testing records easier to manage and trace. With practical functions including data hold, MAX/MIN recording, high/low alarm settings, automatic power-off and low battery indication, the compact and portable TA642 Series Air Velocity Meter is an ideal solution for HVAC professionals, engineers, technicians, manufacturers, laboratories and educational institutions.

The TA640A High Accuracy Digital Anemometer is a professional handheld air velocity measuring instrument, also known as a digital anemometer, handheld wind speed meter, air flow meter, air velocity tester, or wind speed measuring device. Equipped with a high-sensitivity vane sensor, it provides fast and stable measurement of airflow velocity while simultaneously monitoring ambient temperature for efficient field inspection and analysis. With a 0.3～30.0m/s wind speed measurement range, the TA640A supports five selectable wind speed units including m/s, km/h, ft/m, mile/h, and knots, while temperature measurement supports ℃/℉ conversion to meet different international measurement requirements. The instrument features data hold, maximum/minimum value recording, backlight display, and automatic power-off functions, making it ideal for portable testing and routine maintenance applications. The TA640A digital anemometer is widely used in HVAC system commissioning, air duct velocity testing, ventilation system inspection, building air circulation analysis, industrial factory airflow monitoring, fan and blower performance testing, power plant ventilation inspection, wind energy equipment maintenance, petrochemical facilities, underground warehouse ventilation checks, aviation ground wind measurement, outdoor weather monitoring, environmental airflow testing, and laboratory airflow measurement. Whether used for building acceptance testing, equipment installation and adjustment, industrial environment optimization, or daily equipment maintenance, the TA640A handheld anemometer provides a reliable solution for accurate air velocity and temperature measurement.

The TA646A Digital Anemometer is a professional handheld air velocity measurement instrument integrating airflow speed and ambient temperature measurement. It is also known as an air velocity meter, wind speed meter, airflow tester, ventilation tester, or portable airflow measurement device. Equipped with a high-sensitivity infrared laser-cut sensor, the instrument provides fast and accurate measurement of air velocity and temperature in various airflow environments. The TA646A supports multiple wind speed units and features practical functions including data hold, maximum/minimum value recording, and backlight display, offering convenient operation, reliable performance, and excellent portability for field applications. The TA646A Digital Anemometer is widely used in HVAC system commissioning, air conditioning outlet testing, ventilation duct inspection, fresh air system evaluation, fan and blower performance testing, industrial workshop airflow monitoring, power plant ventilation inspection, petrochemical facility safety monitoring, steel and metallurgy production environments, aviation airflow measurement, outdoor weather observation, building engineering acceptance, underground space ventilation assessment, and warehouse air circulation testing. With its compact design, accurate measurement capability, and versatile functions, the TA646A Digital Anemometer is an ideal airflow measurement solution for HVAC engineers, maintenance technicians, industrial inspectors, facility managers, and professionals requiring reliable air velocity and temperature testing in field environments.