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The AirVisual Pro can handle temperatures ranging from -10°C to ~+40°C. Beyond this range, IQAir cannot guarantee the validity of the data shown, proper usage, or general protection of the device’s hardware components.

For more on the AirVisual Pro’s temperature range, follow this link:
https://www.iqair.com/blog/resources/what-temperature-range-can-the-airvisual-pro-function-within