1. The refrigeration capacity is 1100w, and the environment-friendly refrigerant can be used, and the refrigeration performance is stable; 2. Dual nixie tube display, the actual temperature and the set temperature are clear at a glance; 3. Temperature control precision control range is small (± 0.2 °C); 4. lt has heating function to meet the rapid and normal use of equipment in cold environment; 5. With water flow alarm, ultra-high temperature and ultra-low temperature and sensor fault alarm functions; 6. it has the function of compressor overcurrent and overload protection to extend the service life of the compressor.