Specializing in the production of single-fluid low-temperature chillers, the cooling temperature range is from -150 degrees to -5 degrees, which can meet different cooling temperature needs. The products are widely used in low temperature reaction fields in chemical, pharmaceutical, biochemical and other industries, with fast cooling speed, safety and reliability. The product uses a 7-inch color touch screen to display input and record temperature curves. The entire system is a fully closed system, and there is no water absorption during low temperature operation, ensuring the purity of the cold heat transfer medium, preventing ice crystals, and improving the life of the heat transfer fluid.