1PCS MQ9 MQ-9 Carbon monoxide Gas Sensor Module Gas Sensor module For Arduino
1,40 €
1pcs MQ9 MQ-9 Carbon Monoxide CO Alarm Combustible Gas Sensor Module. - Gas Detected：Carbon monoxide，Combustible gas. - Have better sensitivity to carbon monoxide detector. - High-quality, dual-panel design, with power indicator and TTL signal output instructions;.
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