Stable and reliable, high efficiency and energy saving Cold and high temperature resistance: it can adapt to different environments and weather, and can still maintain stable operation in cold winter and summer. Keel motor: the compressor keel motor realizes tight winding, which is conducive to improving motor efficiency. Mute design: Mute compressor, improve component structure, and create mute products. Low noise, strong wind and high efficiency Turbine centrifugal fan: after the dynamic balance test, the rotor runs smoothly and has low noise. Enclosed motor: the casing completely wraps the movement to avoid leakage caused by the exposure of the movement and to achieve protection. Double layer all copper condenser, 8 new copper tubes with internal thread are made of 0.1mm hydrophilic aluminum foil material: the condensed water is easy to condense into water droplets, which speeds up the cooling speed and effectively avoids the noise caused by the condensed water hindering the air flow. Intelligent drive circuit of humidity sensor Humidity sensor: it has the advantages of large humidity detection range, small temperature dependence, single-chip microcomputer control and no correction, and large temperature and humidity detection range.