- testo 440 air velocity and IAQ measuring instrument, 3 AA batteries, USB cable, and calibration protocol (0560 4401)
- CO2 probe with Bluetooth and humidity/temperature sensor* (consisting of CO2 probe head and Bluetooth handle), 4 AA batteries, table stand, and calibration protocol (0632 1551)
- Basic case for testo 440 and 1 probe
*Please do not use the probe in condensing atmospheres. For continuous application in high-humidity ranges:
> 80% RH at ≤ 86 °F for > 12 h
> 60% RH at > 86 °F for > 12 h
Please contact Testo Service, or contact us via the Testo website.