This is a PID temperature controller works with universal signal, thermocouple, RTD and analog signals, comes with several options on the output, popular choices is Relay, SSR Drive and 4-20mA, 0-10VDC output, fast sampling rate and built-in timers optional, for system intergration purpose, you can choose the RS-485 modbus feature, up to 2 alarms, heating and cooling control configurable, vivid LCD display. offers standard PID control mode and ON/OFF control mode. fuzzy logic pid algorithm