The Delta temperature controller DT3 series is designed with upgraded hardware and higher specifications as well as smart operation, fast response, easy modularization, plus user-friendly and user-defined function keys. With Self-Tuning and FUZZY temperature control functions, controllers can be installed in open space and confined space applications and are capable of presenting a smooth temperature control curve. In addition, the innovative design enables customers to replace the module with new functions to attain the ultimate in extension flexibility