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FLAMMABLE GAS SENSOR MODULE User Guide for SRAQ-G014 Product Description The SRAQ-G014 gas sensor module detects the presence and concentration of flammable gases such as butane, propane, methane and hydrogen. Integrated circuitry produces a non-linear voltage signal corresponding to the gas concentrations. The SRAQ-G014 has high sensitivity and can detect flammable gas concentration in the range of 50 to 10000 ppm and also carbon dioxide from as little as 10 ppm to as much as 1000 ppm.
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Technical Parameters Working Voltage 5 VDC ± 0.2 V Working Current <150 mA Gas Detection Flammable Gas, CO 50 10000 ppm (Flammable gas), 10 1000 ppm (CO) Detection Concentration Preheating Time >30 mins Response Time ≤1 sec Recovery Time ≤30 sec 0 ...
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Notes Confirm the polarity and the voltage of the power supply before powering ON the sensor. The analog output of this module is non-linear. When connect to microcontroller, it should be connected to ADC interface of the microcontroller. The relationship between the resistance ratio and the concentration is a logarithmic relationship. For more info on typical sensitivity curve, check MQ9 Probe on internet.