The set includes: testo 440 air velocity and IAQ measuring instrument, 3 x AA batteries, USB cable, vane probe (Ø 100 mm) with Bluetooth including temperature sensor (consisting of 100 mm vane probe head, handle adapter and Bluetooth handle); bracket for testovent measurement funnel, 4 x AA batteries, hot wire probe including temperature sensor with fixed cable (length 1.7 m) including temperature sensor, with telescope (can be extended to 0.85 m) , combi-case for testo 440 and multiple probes