... Controller Features:1,Universal input, Auto-tuning PID operation, 2 independent PID control for heating/cooling over temperature,pressure, ... light industry, chemistry, machine, metallurgy, ceramics, pertrification industry.2,One key operation, Auto-tuning PID/ Fuzzy PID control.Easy operation, ... you can choose PID control or analog output). Alarm output: 2 lines output,7 kinds of alarm mode: high / low ...