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Version 3 – August 2020

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RH (%RH)

100

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0

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80

Temperature (°C)

Figure 3: Typical accuracy of relative humidity measurements given in %RH for temperatures 0 – 80°C.

1.2 Recommended Operating Conditions

The sensor shows best performance when operated within recommended normal temperature and humidity range of

5 – 60 °C and 20 – 80 %RH, respectively. Long term exposure to conditions outside normal range, especially at high

humidity, may temporarily offset the RH signal (e.g. +3%RH after 60h at >80%RH). After returning into the normal

temperature and humidity range, the sensor will slowly come back to calibration state by itself. Prolonged exposure to

extreme conditions may accelerate ageing.

To ensure stable operation of the humidity sensor, the conditions described in the document “SHTxx Assembly of SMD

Packages”, Section “Storage and Handling Instructions” regarding exposure to volatile organic compounds have to be

met. Please note as well that this does apply not only to transportation and manufacturing, but also to operation of the

SHT85.