TESTO 405 Pocket Thermo-Anemometer with Telescopic Probe

The TESTO 405 Thermo-Anemometer is a professional-grade, pocket-sized instrument designed for accurate air velocity, volumetric flow, and temperature measurement. Its compact and robust construction makes it an essential tool for HVAC technicians, facilities managers, and engineers requiring reliable airflow diagnostics.

Featuring a permanently mounted, extendible telescopic probe that reaches up to 300mm, this anemometer is perfectly suited for taking measurements deep within ventilation ducts or at hard-to-reach duct openings and draughty windows. The illuminated, swivel display ensures readings are always clear and visible, even in dimly lit conditions, while the included duct bracket provides a secure and hands-free measurement setup for improved practicality.

With a precise air velocity measurement range of 0m/s to 10m/s and a resolution of 0.01m/s, it delivers detailed data for analysing airflow patterns. It can calculate volumetric flows up to an impressive 99,990 m³/h. For temperature, it offers a broad measuring range from -20°C to +50°C with an accuracy of ±0.5°C and a resolution of 0.1°C, making it a versatile dual-purpose device.

Powered by three readily available AAA micro batteries offering up to 20 hours of continuous operation, the TESTO 405 is built for all-day use on-site. The complete kit includes the thermal anemometer with its telescopic probe, a duct bracket, an attachment clip, and the necessary batteries, providing everything needed for immediate professional use.