DCP550 is a panel-mounted ½ DIN programmer/controller ideal for use in thermal applications and the control of process variables such as temperature, humidity, flow and pressure. Two models of the device are available–a single-channel unit, DCP551 and a dual-channel unit, DCP552. While DCP551 is available with one or two inputs and has one loop of control, DCP552 comes with two inputs and two loops of control. In addition, a carbon potential model is also available with the DCP552.