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MQ-3 alcohol gas sensor module ethanol concentration detection circuit

MQ-3 alcohol gas sensor module ethanol concentration detection circuit
MQ-3 alcohol gas sensor module ethanol concentration detection circuit

Product Specifications:

Dual signal output (analog output, and TTL level output)

TTL output valid signal is low, can be connected directly to the microcontroller

0 ~ 5V analog output voltage, the higher the concentration the higher the voltage

Detectable Concentration: 0.04-4mg/L

Application: For motor vehicle drivers and other non-drinking workers on-site inspection, but also for other places of ethanol vapor detection, detection of alcohol range.

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