mq2 gas sensor circuit diagram

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Mini Breadboard:-https://amzn.to/3Ulqv3G
MQ-2 Gas Sensor:-https://amzn.to/3KHEkFt
5V Buzzer and 9V Battery:-https://amzn.to/3KkLNK9
220 Ohm Resistor:-https://amzn.to/3ZPIUXv





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