Product Description Estimation of freshness and origin of food, the pollution rate of electronic appliances and interior construction materials. Product Feature 1.A sensor array system for complex estimation of the odor 2.Maximum 9 kinds of gas sensors (MOS, electrochemical, VOCs) 3.Operation program based on WIN CE 4.Provides multiple readings of odor strength(OI), odor dilution rate(OU), the similarity of odor and relative diversion rate Replacement alarm function for articles of consumption (pump, sensor, filter) 5.Increasing demands from Universities,...