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version 1.0 – December 2021

6/22

2.3 Recommended Operating and Storage Conditions

Gas Sensing Specifications as detailed in Table 1 are guaranteed only when the sensor is stored and operated under the

recommended conditions as specified in Table 4 and displayed in Figure 4 and Figure 5. Prolonged exposure to conditions

outside these conditions may reduce sensor performance. The sensor must not be exposed towards condensing conditions (i.e.,

>90 % relative humidity) at any time.

Condition

Parameter

Min.

Max.

Unit

Operating conditions

Relative humidity

0

90

% RH

Temperature

−10

50

°C

Operating conditions of

humidity compensation

Humidity

1.5 (−13)

–

30 (+31)

90

(the smaller)

or

% RH

Temperature

−10

50

°C

Storage conditions

Relative humidity

0

80

% RH

Temperature

5

30

°C

Table 4 Recommended humidity and temperature conditions for storing and operating the SGP41. Dew point refers to maximum humidity

allowed at minimum and maximum temperature, respectively.

Figure 4 Recommended relative humidity and temperature for

operating the SGP41. Green area marks conditions for which

humidity compensation has been optimized. Additionally, gray areas

mark operating conditions without using the humidity compensation

feature.

Figure 5 Recommended relative humidity and temperature for

storing the SGP41.

To ensure an optimal performance of the SGP41, Handling and Assembly Instructions for SGPxx Gas Sensors as well as the

Design-in Guide for Integrating SGP4x Gas Sensors need to be followed.