Testo® 400 - Flow set with 16 mm impeller

Ideal set for climate professionals with a focus on volume flow measurement. You get the universal climate meter testo 400 with intuitive measuring menus, an impeller probe head (Ø 16 mm), an impeller probe head (Ø 100 mm) and a high-precision humidity-temperature probe head - all three attachable to the included Bluetooth® handle. For measurements on ceiling outlets, simply combine the 100 mm impeller probe with the telescope (extendable up to 1.0 m) and the 90° angle.