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Instrument for detecting food deterioration,starting from the care for life,health and safety,according to the metal porphyrin compounds and organic small molecule gas reaction after the principle of color changes.It is made from metal porphyrin visibility sensor which has good selectivity, sensitivity, reproducibility,stability,and affected by the environment humidity is not big,as well as can carry out rapid detection of food quality.When using,put the receiving hole at the bottom of the detection stick to align
with the food.The receiving hole can accurately accept the gas generated by spoiled food for rapid detection