... heating/cooling over temperature,pressure,level,flowm,etc..Widely used in auto system in line of light ... , ceramics, pertrification industry.2,One key operation, Auto-tuning PID/ Fuzzy PID control.Easy operation,Reliable ... 4-20mA/0-10V signal from standard pressure/level transmitter, (24V/30mA supply available for standard ... goods. you are welcome to contact us at any time, we are ready to offer ...