Red Lion's DLC line of PID controllers offer two independent input channels which can be configured to accept a wide range of thermocouple, RTD, 0-10 V, 0/4-20 mA, or resistive signals. Each channel can be independently configured to extract the square root of the input in both process voltage or process current modes for applications such as flow measurement using a differential flow sensor. Channel B can be assigned as a remote setpoint for channel A.