The compact climatic set contains four App-controlled measuring devices for the most important measuring tasks of air conditioning technicians: the thermo-anemometer testo 405 i, the vane anemometer testo 410 i, the thermo-hygrometer Testo 605 i as well as the infrared thermometer testo 805-i. In combination with a smartphone or tablet can be air and surface temperatures, humidity, air speed and volume flows in, and around air-conditioning systems and systems. On the Smartphone/Tablet installed testo Smart Probes App, users can conveniently read your measurement values. In the app can be measuring parameters (such as Humidity or temperature) with only one click in the sequence Replace, delete or add. In addition, as fast as possible to change the displayed measured variables. The app also offers application-specific menus for the identification of mold risks; automatic calculation of the volume flow at the outlet/in the channel by simple parameterization of the exhaust vent/channel cro