link to page 7 ConditionParameterMin.Max.Unit Operating conditions Relative humidity 0 90 % RH Temperature −10 50 °C Operating conditions of Humidity 1.5 (−13) 30 (+31) g m−3 (°C dew point) humidity compensation or – 90 % RH (the smaller) 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 SGP40. Dew point refers to maximum humidity allowed at minimum and maximum temperature, respectively. Figure 3 Recommended relative humidity and temperature for Figure 4 Recommended relative humidity and temperature for operating the SGP40. Green area marks conditions for which storing the SGP40. humidity compensation has been optimized. Additionally, gray areas mark operating conditions without considering the humidity compensation feature. To ensure an optimal performance of the SGP40, Handling and Assembly Instructions for SGPxx Gas Sensors as well as the Design-in Guide for Integrating SGP4x Gas Sensors need to be followed. 2.4 Absolute Minimum and Maximum Ratings Stress levels beyond those listed in Table 5 may cause permanent damage to the device. Exposure to minimum/maximum rating conditions for extended periods may affect sensor performance and reliability of the device. www.sensirion.com Version 1.1 – September 2021 6/19