HLC series dynamic high and low temperature circulators have a wide range of operating temperatures and ultra-high temperature control stability to meet the needs of use to the maximum extent. Adaptive temperature control ensures accurate temperature control and good repeatability. The optimized design of the water pump and water system greatly reduces the occurrence of water circulation failures. The intuitive display of temperature and control parameters allows customers to operate conveniently and quickly. The overall machine design after simulation optimization reduces noise and vibration, and runs smoothly and quietly. Equipped with RS232\ RS485 communication, remote temperature monitoring and control can be achieved.