Kit for carrying out measurements in ventilation ducts and at air outlets: The testo 440 air velocity and IAQ measuring instrument, the vane probe (Ø 100 mm) with Bluetooth including temperature sensor and the hot wire probe including temperature sensor are all safely stowed away in the case. So you can get down to work straight away! The testo 440 multifunction measuring instrument, the vane probe and the hot wire probe including telescope all feature an intelligent calibration concept, ease of use and maximum convenience for the adjustment of air-conditioning and ventilation systems.

• Convenient: wireless probe, internal data storage and USB port for data export
• As multifaceted as your challenges themselves: the air velocity and IAQ measuring instrument can be expanded with a large portfolio of digital probes