The shell of HH-5/HH-6 series products is made of metal plate, and the control box and water tank are installed together. There are two inlet and outlet pipes for condensation on the side, and a high-quality water pump is used as the circulating power in the water tank, so that the temperature control accuracy of the instrument and the uniformity of the water can meet high requirements. The inner liner is manufactured using high-quality stainless steel plates and advanced technology. It has the advantages of high temperature control accuracy, strong corrosion resistance, compact structure, beautiful appearance, energy saving, and long service life. It is selected for precision products in experimental scientific fields such as biology, physics, plants, chemical engineering, medical, environmental protection, or auxiliary heating.