... valley/low load 4 rates 10 period of time, from small to large array. The minimum period of time interval is ... temperature (-30ºC--80ºC) LCD display ; 2. 8 digit LCD display, 6 integer and 2decimal; 3. Display the data of current date, time ... baud rate 1200bps/s, semiduplex , RS485 communication circuit is separated with inner meter circuit, communication distance:1200m. Electric parameter is conform ...