FIELD: measuring devices.
SUBSTANCE: invention can be used to measure gas concentration. Present invention consists in that gas concentration measurement device comprises: a measuring section configured to measure gas concentration based on output signal of gas sensor; a timer section made configured to measure time elapsed from moment of measurement of gas concentration by measurement section; and section of notification, having a possibility of notification, when gas sensor is isolated from ambient air, when measured elapsed time is less than a given ventilation time.
EFFECT: technical result is enabling prevention of degradation of gas sensor by poisonous substance.
15 cl, 8 dwg
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