The combi-case is ideal for transporting and protecting your equipment. You can use the case to safely stow away the following: testo 440 or testo 440 dP air velocity and IAQ measuring instrument Vane probe (Ø 100 mm) with universal handle. Alternatively, turbulence probe or fume cupboard probe with fixed cable 90° angle for connecting vane probes (Ø 100 mm) for measurements at ceiling outlets Either the vane probe (Ø 16 mm) or hot wire probe (each with fixed cable), or extendable telescope for air velocity probes with universal handle Hot wire or 16 mm vane probe head Humidity, CO 2 or CO probe (each with universal handle); or high-precision humidity/temperature probe with fixed cable Lux probe Batteries Combi-case for testo 440 and multiple probes. Safely stow away and transport your equipment: the robust combi-case offers storage space for your testo 440 or testo 440 dP air velocity and IAQ measuring instrument and other probes.