Gas and Dust Sensors detect harmful gases, smoke, air pollutants, and airborne particles in the surrounding environment. From lpg gas detector sensors and methane gas monitors to alcohol detectors and air quality modules, these suit safety systems and IoT air monitoring builds. Best price guaranteed with fast delivery across India.
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MQ-135 Gas Sensor Module | NH3, Alcohol, benzene, smoke , CO2 Detector
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What are Gas and Dust Sensors?
Gas and Dust Sensors are detection modules that measure the concentration of specific gases or particulate matter in the surrounding air and output an analog or digital signal based on concentration levels. MQ series gas sensors use a heated metal oxide element that changes resistance when target gas molecules contact it. A practical example used in Indian college safety projects is building an LPG gas detector that triggers a buzzer alert when kitchen gas leakage is detected.
Common Gas and Dust Sensors Available at StemVolt
- MQ-135 Air Quality Gas Sensor — Detects ammonia, benzene, smoke and CO2 for general air quality monitoring builds
- MQ-3 Alcohol Detector Sensor Module — Measures alcohol vapour concentration, used in breath analyser and safety projects
- MQ-7 Carbon Monoxide Gas Sensor — Detects CO gas levels accurately for home safety and industrial gas detector price competitive builds
- MQ-2 LPG Gas Detector Sensor — Detects LPG, methane gas monitor capability and smoke for kitchen safety alert systems
How to Choose the Right Gas and Dust Sensors
Choose based on the specific gas your project needs to detect. MQ-2 covers LPG and methane for kitchen safety builds. MQ-7 focuses on carbon monoxide detection for enclosed space monitoring. MQ-135 covers a wider range of gases for general air quality monitoring. For particulate matter detection in air purifier and pollution monitoring projects, choose a dedicated dust sensor module over an MQ gas sensor. One practical tip: all MQ sensors need a 24 to 48 hour burn-in period after first power-on for accurate baseline calibration before taking readings in your project.
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Buy Gas and Dust Sensors Online in India | StemVolt
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