... --- Human engineering design, the high-precision micro-computer control, temperature,humidity and illumination control, best imported components, ... RH,Humidity Fluctuation:±3%RHIllumination Range Working environmentAmbient temperature:10~30°C, Humiditu<70%Imsulation materialsImported ... technical data is under no load conditions,environment temperature 25°C,relative humidity 50%RH,voltage fluctuation ...