Temperature control system in pharmaceutical, chemical and other industries, a variety of experimental equipment such as reactor, drying equipment, mixing equipment, separation equipment, heat transfer equipment, pressure vessels and other application is more, high and low temperature machine can form a complete set of all kinds of reaction and separation, refrigeration, heating, etc., high quality high quality high and low temperature all-in-one plays an important role. Used in pharmaceutical industry to connect the reaction kettle for refrigeration, heating reaction equipment, especially suitable for the reaction process of heat, heat release process control, accurate control of the kettle material temperature, can choose the program control mode, temperature difference between the heat conducting medium and the material can also be set.