Host selection of European, American and Japanese new world famous brand compressor, refrigeration, high efficiency, low noise, low power savings, safety and environmental protection and durable. Control of electrical appliances control use of international brands to ensure the machine is stable, long life, safe and reliable. Brand pumps, large displacement, low energy consumption, power and durability, head and pump materials can be optional. Brands or low-noise axial fans with external rotor fan, low noise, large air volume, energy saving environmentally friendly and durable. Equipped with sophisticated digital display temperature controller, easy to operate, simple and intuitive. Can precisely control the temperature ± 1 ℃, the set temperature range 5 ℃ -50 ℃, can directly analyze the operational status of the unit. (Can be configured according to user control system) standard tank evaporator coil (optional stainless steel plate evaporator or dry shell and tube evaporator), built-in automatic replenishment and other devices, cleaning and maintenance quick and easy. The water-cooled condenser unit using high-performance shell and tube heat exchanger (optional stainless steel plate heat exchanger), built-in high efficiency heat exchanger tube teeth, reasonable design, heat transfer effect is good; electrostatic spray enclosure, Europeanization design, beautiful generous, exterior plate form by rapid disassembly, easy to use and maintain.