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ODOROUS AND VOC GAS SENSOR MODULE User Guide for SRAQ-G026 Product Description The SRAQ-G026 gas sensor module detects the presence and concentration of hydrogen, ammonia, ethanol, hydrogen sulfide and other harmful odorous vapors. Integrated circuitry produces a non-linear voltage signal corresponding to the gas concentration. With a detection range of 1 to 10ppm, the SRAQ-G026 odorous gas sensor module can be integrated into air fresheners and deodorizer controllers or other air quality monitoring equipment.
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Technical Parameters Working Voltage 5 VDC ± 0.2 V Working Current <50 mA Gas Detection Hydrogen, ammonia, ethanol, hydrogen sulfide, toluene Detection Concentration 1 10 PPM Preheating Time > 30 mins Response Time >1 sec Recovery Time ≤30 sec Aout (Analog signal) 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 TGS2602 Probe on internet.
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