Thermal anemometer Testo 405

The Testo 405 thermal anemometer is a pocket-sized instrument engineered for quick and accurate air velocity and temperature measurements, making it an essential tool for HVAC professionals. Its permanently mounted extendable telescope, which reaches up to 300 mm, enables precise airflow assessments in ventilation ducts, while its ability to measure air velocity from 0 to 10 m/s and calculate volumetric flow up to 99,990 m³/h ensures comprehensive evaluation of air movement. In addition, it features an integrated NTC sensor for reliable ambient temperature readings, and the device can display additional parameters such as dew point and wet bulb temperature. The Testo 405 offers practical functions like single-point averaging, a hold function to freeze readings, and min/max value tracking, all presented on a swiveling, illuminated LCD display for easy readability in any lighting condition. Designed with portability in mind, it comes with a protective cap, duct bracket, and wrist strap, ensuring durability and ease of use in the field.