Heat-cool temperature controllerVersatile, simple and complete.The two intermediate 48×48 lines of the gammadue® series cover a wide range of applications, being able to be used both as a simple controller (M1), and as a heat-cool temperature controller with auxiliary input for amperometric transformer (M3).Easy to configure and with truly simplified operations, they also have typical characteristics of more complex instruments such as automatic search for adjustment parameters, serial communication, continuous retransmission output, “custom” linearization, special Start-up functions and Timer, transmitter power supply and IP65 front protection.