... dew point -80~+20°C, when the dew point temperature is lower than 0°C, the sensor output is frost ... . Typical precisionsuperior than ±1°cResponse time (Td)when the gas temperature is 20°c -60→-20°c5s (63%), 10s (90%) ... charging protection)Time of usage>10 hoursOperation environment Ambient temperature -10~+60°c Ambient humidity0~100%RH Pressure1 atmosphere pressureDimension273mm×257mm×143mmWeightabout ...