... power environment temperature Environment humidityenvironment temperature keeping specification DC12V ~ 24 V < 500 m/W -10 °C -55 °C 93% -35 °C -65 ... curve, showing A 4 °C, A 3 °C, A 2 °C, A 1 °C, A 0 °C, A-1 °C, A-2 °C, A-3 °C, A-4 °C ... ,Or display, A 8 °F, A ...