LNEYA cooling and heating system has superior performance, high precision, intelligent temperature control, and a very wide temperature control range from -120 ℃ ~ 350 ℃, which is suitable for the constant temperature control needs of most enterprises. The temperature control accuracy of the product can reach ± 0.5 ℃, and the refrigeration power can be provided from 0.5kW to 1200kW. Can be used for temperature control of agitator tanks and reactors in chemical, pharmaceutical and biotechnology, as well as temperature testing in automotive industry test stations, whether for climate simulation or performance and material testing.