We use OptiClimate's original PRO indoor HVACDContinuous and precise control of indoor temperature and humidity.Quiet operation,Steady airflow keeps CO2 balanced.Reliable performance and efficiency.The working speed of the compressor/fan changes in real time according to the load, eliminating the harsh start/stop cycle, so that the compressor can run at a more stable speed and save energy.It can make the grow room reach the required temperature faster, and maintain the temperature and humidity more uniformly, so as to obtain better efficiency and energy-saving effects.