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MQ4 METHANE NATURAL GAS SENSOR MODULE SHIELD LIQUEFIED ELECTRONIC DETECTOR MODULE FOR ARDUINO
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MQ2 FLAMMABLE GAS AND SMOKE SENSOR MODULE (METHANE, BUANE, LPG, SMOKE) FOR ARDUINO
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MQ3 ALCOHOL SENSOR BREATH GAS ETHANOL DETECTION GAS SENSOR MODULE MODULE FOR ARDUINO

MQ3 ALCOHOL SENSOR BREATH GAS ETHANOL DETECTION GAS SENSOR MODULE MODULE FOR ARDUINO    

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Weight 25 kg

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