SEN0134

    Analog Gas Sensor(MQ9) SKU:SEN0134 Fom Robot Wiki    Analog Gas Sensor(MQ9) SKU：SEN0134  Contents      1 Introduction  2 Application  3 Specification  4 Connecting Diagram  5 Sample Code  Introduction MQ-9 gas sensor has high sensitity to Carbon Monoxide, Methane and LPG. The sensor can be used to detect different gases containing CO and combustible gases, it is low cost and suitable for different applications. Sensitive material of MQ-9 gas sensor is SnO2, which has a lower conductivity in clean air. It makes detection by cycling high and low temperature, and detects CO when low temperature (heated by 1.5V). The sensor’s conductivity is higher along with the gas concentration rising. When high temperature (heated by 5.0V), it detects Methane, Propane etc combustible gas and cleans the other gases adsorbed under low temperature. Application    Domestic gas leakage detector  Industrial gas detector  Portable gas detector  Specification         Power supply needs: 5V  Interface type: Analog  Sensor Type: Semiconductor  Concentration:   o 10‐1000ppm CO  o 100‐10000ppm combustible gas  Good sensitivity to CO/Combustible gas  High sensitivity to Methane, Propane and CO  Long life and low cost  Size: 36.4x26.6mm  Connecting Diagram   Sample Code ///Arduino Sample Code void setup() { Serial.begin(9600); //Set serial baud rate to 9600 bps } void loop() { int val; val=analogRead(0);//Read Gas value from analog 0 Serial.println(val,DEC);//Print the value to serial port delay(100); }                                                Powered By DFRobot © 2008-2017