This analogueue gas sensor has a small heating element with an electronic-chemical sensor.
It is suitable for indoor use.
It can only output accurate measured values after the warm-up phase has been completed.
It is compatible with all microcontrollers (an A/D converter is required for Raspberry).
The sensor is characterized by its fast response time and its wide detection range.
The sensitivity can be adjusted by a potentiometer located on the bottom of the module.
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