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MQ-9 SensorSensitive material MQ-9 gas sensor is used to clean the air in the lower conductivity of tin dioxide (SnO2). Detection method using low temperature cycling (1.5V heating ) to detect carbon ..

A carbon monoxide detector for the Arduino-based DIY security system. The carbon monoxide detector is a semiconductor gas sensor tuned to detect carbon monoxide. It is in the same family of devices as..

MQ4 Methane Gas Sensor Module Sensitive material MQ-4 gas sensor is used to purify the air in the lower conductivity of tin dioxide (SnO2). when there are conditions in which the combustible gas ..

MQ-2 LPG Butane Propane Methane Hydrogen Gas Sensor ModuleMQ-2 is a low cost semiconductor sensor which can detect the presence of LPG, LNG, Natural and Town gases at concentrations from 200 to 10,000..

MQ-3 Alcohol-Ethanol Gas Sensor ModuleMQ3 GAS Sensor is a very easy to use and very handy sensor. It is suitable for sensing Alcohol gas concentration.  MQ3 Alcohol GAS Sensor can detect  Al..