{"id":6810,"date":"2024-07-06T18:25:15","date_gmt":"2024-07-06T15:25:15","guid":{"rendered":"https:\/\/sastronlimited.com\/?post_type=product&p=6810"},"modified":"2024-07-06T18:27:55","modified_gmt":"2024-07-06T15:27:55","slug":"air-quality-sensor-mq-135","status":"publish","type":"product","link":"https:\/\/sastronlimited.com\/ar\/product\/air-quality-sensor-mq-135\/","title":{"rendered":"Air Quality Sensor MQ-135, MQ Series Sensor for Arduino"},"content":{"rendered":"

Air Quality Sensor MQ-135<\/strong><\/em><\/p>\n

The MQ-135 is a widely used air quality sensor capable of detecting a variety of harmful gases. Here\u2019s a detailed overview of its specifications and features:<\/p>\n

Key Specifications:<\/strong><\/em>–<\/h3>\n

Gas Detection<\/strong>: Detects ammonia (NH3), nitrogen oxides (NOx), alcohol, benzene, smoke, carbon dioxide (CO2), and other harmful gases.
\n– Operating Voltage<\/strong>: 5V DC.
\n– Power Consumption<\/strong>: Less than 150 mA.
\n– Output<\/strong>: Analog and Digital.
\n– Preheat Time<\/strong>: Over 24 hours for best accuracy.
\n– Dimensions<\/strong>: Approx. 32 mm x 22 mm x 27 mm.
\n– Sensing Resistance<\/strong>: 10K\u03a9 to 60K\u03a9 depending on the concentration of the gases.
\n– Operating Temperature<\/strong>: -20\u00b0C to 50\u00b0C.
\n– Humidity Range<\/strong>: 20% to 90% RH.<\/p>\n

MQ-135 Features:<\/strong><\/em><\/h3>\n

– High Sensitivity to Air Quality<\/strong>: Particularly sensitive to ammonia, NOx, alcohol, benzene, smoke, and CO2.
\n– Fast Response Time<\/strong>: Quickly reacts to changes in gas concentrations.
\n– Analog Output<\/strong>: Provides a continuous analog signal corresponding to the gas concentration.
\n– Digital Output<\/strong>: Threshold-based output that can be set to trigger alarms or actions when gas concentration exceeds a set level.
\n– Long Life and Stable Performance<\/strong>: Reliable and durable for long-term use.
\n– Preheat Time<\/strong>: Requires a significant preheat time for accurate readings, typically over 24 hours.<\/p>\n

MQ-135 Applications:<\/strong><\/em><\/h3>\n

– Air Quality Monitoring<\/strong>: Used in indoor and outdoor air quality monitoring systems.
\n– Safety Alarms<\/strong>: Integrated into gas detectors and alarms to ensure safety in residential, commercial, and industrial environments.
\n– HVAC Systems<\/strong>: Incorporated into heating, ventilation, and air conditioning systems to monitor and improve air quality.
\n– Automotive<\/strong>: Used in vehicles to detect harmful gases inside the cabin.
\n– Home Automation<\/strong>: Part of smart home systems to monitor and maintain healthy indoor air quality.<\/p>\n

MQ-135 Wiring and Usage:<\/strong><\/em><\/h3>\n

– Power<\/strong>: Connect the VCC pin to a 5V power supply and GND to ground.
\n– Analog Output<\/strong>: Connect the AOUT pin to an analog input pin on a microcontroller (e.g., Arduino) to read the gas concentration.
\n– Digital Output<\/strong>: Connect the DOUT pin to a digital input pin on a microcontroller for threshold-based detection. The threshold can be adjusted using the onboard potentiometer.<\/p>\n

MQ-135 Important Points:<\/span><\/strong><\/em><\/p>\n

– Calibration<\/strong>: The sensor needs to be calibrated in a clean air environment for accurate readings.
\n– Ventilation<\/strong>: Ensure proper ventilation around the sensor to avoid false readings due to stagnant air.
\n– Safety<\/strong>: While the MQ-135 can detect a range of gases, it should not be used as the sole safety device in environments where gas detection is critical.<\/p>\n

In summary, the MQ-135 is a versatile air quality sensor that can be used in various applications to monitor harmful gas concentrations, ensuring safer and healthier environments. It is compatible with Arduino<\/a>.<\/p>\n

Click here<\/a> to access datasheet.\"Air<\/p>","protected":false},"excerpt":{"rendered":"

Air Quality Sensor MQ-135 The MQ-135 is a widely used air quality sensor capable of detecting a variety of harmful gases. Here\u2019s a detailed overview of its specifications and features: Key Specifications:– Gas Detection: Detects ammonia (NH3), nitrogen oxides (NOx), alcohol, benzene, smoke, carbon dioxide (CO2), and other harmful gases. – Operating Voltage: 5V DC. 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