DC5V-6V Electronic MQ-2 Smoke Sensor LM358 Integrated Chip DIY Kit Detector Natural Gas Alarm Components Kit Module board

DC5V-6V Electronic MQ-2 Smoke Sensor LM358 Integrated Chip DIY Kit Detector Natural Gas Alarm Components Kit Module board
sku: 4000373412104
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$3.29
Shipping from: China
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