{"product_id":"mq-135-air-quality-gas-sensor-module","title":"MQ-135 Air Quality Gas Sensor Module","description":"\u003cp data-start=\"67\" data-end=\"629\" class=\"PDq2pG_selectionAnchorContainer\"\u003eThe MQ-135 Air Quality Gas Sensor Module is a semiconductor-based gas detection module designed to monitor indoor air quality by detecting a wide range of harmful gases, including ammonia (NH₃), nitrogen oxides (NOx), benzene, alcohol, smoke, carbon dioxide (CO₂), sulfide, and other volatile organic compounds (VOCs). Built around the MQ-135 gas sensor and an onboard LM393 voltage comparator, the module provides both analog (AO) and digital (DO) outputs for easy interfacing with microcontrollers. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"631\" data-end=\"1289\"\u003eOperating at 5V DC, the module features an adjustable sensitivity potentiometer that allows users to set the digital detection threshold according to their application. Its fast response time, long operational life, and stable performance make it suitable for air quality monitoring, smart home systems, industrial safety equipment, environmental monitoring, and educational electronics projects. Compatible with Arduino, ESP32, STM32, Raspberry Pi (with ADC for analog input if required), PIC, AVR, and other development platforms, the MQ-135 is one of the most widely used air quality sensors for embedded systems.\u003cbr\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"etycth\" data-start=\"1296\" data-end=\"1313\" class=\"PDq2pG_selectionAnchorContainer\"\u003eKey Features\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cul data-start=\"1315\" data-end=\"1913\"\u003e\n\u003cli data-section-id=\"gy7mpb\" data-start=\"1315\" data-end=\"1361\"\u003eBased on the MQ-135 semiconductor gas sensor\u003c\/li\u003e\n\u003cli data-section-id=\"5tz857\" data-start=\"1362\" data-end=\"1409\"\u003eDetects multiple harmful gases and pollutants\u003c\/li\u003e\n\u003cli data-section-id=\"l4kh5z\" data-start=\"1410\" data-end=\"1473\"\u003eSensitive to NH₃, NOx, CO₂, benzene, alcohol, smoke, and VOCs\u003c\/li\u003e\n\u003cli data-section-id=\"cxlwdf\" data-start=\"1474\" data-end=\"1507\"\u003eDual analog and digital outputs\u003c\/li\u003e\n\u003cli data-section-id=\"1fzwx90\" data-start=\"1508\" data-end=\"1543\"\u003eBuilt-in LM393 voltage comparator\u003c\/li\u003e\n\u003cli data-section-id=\"15h9k0e\" data-start=\"1544\" data-end=\"1594\"\u003eAdjustable sensitivity via onboard potentiometer\u003c\/li\u003e\n\u003cli data-section-id=\"17bagie\" data-start=\"1595\" data-end=\"1628\"\u003eFast response and recovery time\u003c\/li\u003e\n\u003cli data-section-id=\"v1608s\" data-start=\"1629\" data-end=\"1671\"\u003eHigh sensitivity with stable performance\u003c\/li\u003e\n\u003cli data-section-id=\"1t5ocfw\" data-start=\"1672\" data-end=\"1705\"\u003ePower and output indicator LEDs\u003c\/li\u003e\n\u003cli data-section-id=\"agelrw\" data-start=\"1706\" data-end=\"1729\"\u003eLong operational life\u003c\/li\u003e\n\u003cli data-section-id=\"1dwt9g7\" data-start=\"1730\" data-end=\"1762\"\u003eLow-cost and easy to integrate\u003c\/li\u003e\n\u003cli data-section-id=\"1am9i8h\" data-start=\"1763\" data-end=\"1784\"\u003eOperates from 5V DC\u003c\/li\u003e\n\u003cli data-section-id=\"17xgc05\" data-start=\"1785\" data-end=\"1852\"\u003eCompatible with Arduino, ESP32, STM32, Raspberry Pi, AVR, and PIC\u003c\/li\u003e\n\u003cli data-section-id=\"12o3v4l\" data-start=\"1853\" data-end=\"1913\"\u003eIdeal for air quality monitoring and environmental sensing\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Roboracter","offers":[{"title":"Default Title","offer_id":46734772371510,"sku":"JL92ND9M6D","price":139.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/0731\/2694\/files\/mq135-1.png?v=1783280017","url":"https:\/\/roboracter.in\/products\/mq-135-air-quality-gas-sensor-module","provider":"Roboracter","version":"1.0","type":"link"}