DY-RG heat pipe thermostatic bath is a new product developed and produced by our company. It is made by the constant temperature principle of heat pipe technology. It adopts circulating liquid to widen the constant temperature area. The digital temperature controller realizes automatic temperature control according to the PID regulation law. It has compact structure, convenient operation, improved temperature control accuracy, and intuitive bath temperature reading. It is very convenient for users. It is suitable for physical parameter detection in metrology departments at all levels in provinces and cities, biochemistry, petroleum, meteorology, energy, environmental protection, medicine and other departments, and can provide them with a constant temperature source of 0℃~550℃. It can be used to verify and calibrate second-class standard mercury thermometers, working platinum and copper thermal resistors, low-temperature thermocouples, bimetallic thermometers, and various thermometers or sensors used in petrochemical and electric power departments.