... input DC12V < 500 m/W <100 W 15-18 °C Function is introduced:A. master control board1, digital pipe specifications: 30 * 14 ... , A 1 °C, A 0 °C, A-1 °C, A-2 °C, A-3 °C, A-4 °C,Or display, A 8 °F, A 6 °F, A 4 °F, A 2 °F, A 0 °F, A-2 °F, A ... -4 °F, A-6 °F, A-°F ...