CPC G01N 27/123 (2013.01) [G01N 27/125 (2013.01); G01N 33/0031 (2013.01); G01N 33/0047 (2013.01); G01N 33/0065 (2013.01); G01N 33/0075 (2013.01)] | 21 Claims |
1. A method, comprising:
activating a first gas sensor, the first gas sensor including a first semiconductor metal oxide (SMO) film configured to detect a first gas concentration range;
measuring, by the first gas sensor, a concentration of a gas in a surrounding environment;
determining that the concentration of the gas is outside of the first gas concentration range;
deactivating, in response to determining that the concentration of the gas is outside of the first gas concentration range, the first gas sensor; and
activating, in response to determining that the concentration of the gas is outside of the first gas concentration range, a second gas sensor, the second gas sensor including a second SMO film configured to detect a second gas concentration range.
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