What are the types of gas leak detection system?

What are the types of gas leak detection system?
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Sensitive material of MQ-6 gas sensor is SnO2, which with lower conductivity in clean air. When the target combustible gas exist, The sensor’s conductivity is more higher along with the gas concentration rising. Please use simple electrocircuit, Convert change of conductivity to correspond output signal of gas concentration. MQ-6 gas sensor has high sensitity to Propane, Butane and LPG, also response to Natural gas. The sensor could be used to detect different combustible gas, especially Methane, it is with low cost and suitable for different application. Character Configuration * Good sensitivity to Combustible gas in wide range * High sensitivity to Propane, Butane and LPG * Long life and low cost * Simple drive circuit Application * Domestic gas leakage detector * Industrial Combustible gas detector * Portable gas detector
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