The TMA-21HV Portable Air Velocity Meter is a lightweight versatile instrument that can be used anywhere to measure air velocity, temperature, and relative humidity. It can also calculate the volumetric flow rate, dew point temperature, wet bulb temperature, wind chill temperature, humidex temperature and Heat index temperature. The meter uses a telescoping probe. Applications include hood velocity, clean rooms, ventilation ducts and outlets, heating and air – conditioning, wind tunnels, product development, air – flow research and mass – flow measurement in ducts.

Air velocity measurement (m/s)
Airflow measurement (m3/s)
Temperature and humidity measurement
Product information
Integrated measurement memory (data hold)
MIN/MAX and AVG value measurement
Auto power-off (can be deactivated)
Ideal for measurements in ventilation, air-conditioning and heating systems
Large, illuminated display
Product highlights
USB interface for transferring stored measurements to a PC
1.2 m telescopic probe simplifies measuring
Integrated data logger for records over a longer time frame