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Introduce:MQ-2 gas sensor sensitive material used in the cle..
Description: 100% Brand New. Dual-way Signal Output, Analog output and TTL level outputHigh sensitiv..
Description: Indication of the signal output. Dual signal output (analog output, and..
DescriptionSize: 32 mm X22mm X27mm Main chip: the LM393, MQ-8 gas sensor Working voltage: DC5V 1. Wi..