{"id":53442,"date":"2017-04-13T13:17:01","date_gmt":"2017-04-13T12:17:01","guid":{"rendered":"https:\/\/www.microplanet.ma\/?post_type=product&#038;p=53442"},"modified":"2026-10-19T19:00:00","modified_gmt":"2026-10-19T19:00:00","slug":"mq-9-carbon-monoxide-methane-sensor-module","status":"publish","type":"product","link":"https:\/\/www.microplanet.ma\/en\/produit\/mq-9-carbon-monoxide-methane-sensor-module\/","title":{"rendered":"MQ-9 Carbon Monoxide and Methane Sensor Module"},"content":{"rendered":"<h3>MQ-9 Carbon Monoxide and Methane Sensor Module<\/h3>\n<p>This module is listed for carbon monoxide (CO) and methane (CH\u2084) sensing. MQ-9-family semiconductor sensors respond to changes in these gases, but readings depend on the exact sensor, heater-control cycle, calibration and environmental conditions.<\/p>\n<h4>\ud83d\udd27 Sensor reference specifications<\/h4>\n<ul>\n<li>Sensor type: semiconductor gas sensor<\/li>\n<li>Manufacturer-stated MQ-9B targets: carbon monoxide and methane<\/li>\n<li>MQ-9B reference ranges: 10\u2013500 ppm CO and 300\u201310,000 ppm CH\u2084, under specified conditions<\/li>\n<li>Heater cycle reference: 5.0 V high-temperature phase for 60 seconds, then 1.5 V low-temperature phase for 90 seconds<\/li>\n<li>Heater power: up to approximately 950 mW in the cited reference<\/li>\n<\/ul>\n<p>The source lists the sensor as MQ9; verify that the supplied sensor is the MQ-9B variant before applying MQ-9B values. The range is a sensor test specification, not a guarantee that the breakout provides calibrated concentration readings.<\/p>\n<h4>\u2699\ufe0f Heater-cycle requirement<\/h4>\n<p>The MQ-9B reference detects CO during the low-temperature phase and uses the high-temperature phase to clean the sensing surface. A fixed 5 V heater supply does not implement this cycle. Confirm that the exact module includes suitable heater switching\/control, or follow the sensor manufacturer\u2019s circuit and timing requirements. Allow adequate initial preheat and calibrate the complete setup.<\/p>\n<h4>\ud83d\udd0c Board and microcontroller notes<\/h4>\n<p>Board pinout varies; follow the printed labels. Some breakouts provide VCC, GND, analog output (AO) and comparator-based digital output (DO). Check the actual heater supply requirements and output voltage before connection. Protect 3.3 V-only microcontroller inputs from any 5 V signal.<\/p>\n<p><strong>Safety notice:<\/strong> carbon monoxide is poisonous and odorless; methane is flammable. This hobby module is not a certified CO\/methane alarm, industrial monitor or life-safety device. Never rely on it to detect a leak, prevent poisoning or replace approved alarms. Install certified CO alarms and use certified gas-detection equipment for real hazards. Do not generate or release CO or methane for testing.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>MQ-9 semiconductor module for CO\/methane response experiments. MQ-9B references require a timed 5 V\/1.5 V heater cycle; verify the board. Not a certified alarm or life-safety device.<\/p>\n","protected":false},"featured_media":53443,"template":"","meta":[],"product_brand":[],"product_cat":[314,316],"product_tag":[],"class_list":["post-53442","product","type-product","status-publish","has-post-thumbnail","product_cat-developpement-en","product_cat-modules-capteurs-en","first","instock","sale","taxable","shipping-taxable","purchasable","product-type-simple"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>MQ-9 CO and Methane Sensor Module | MicroPlanet<\/title>\n<meta name=\"description\" content=\"MQ-9 sensor module for supervised CO and methane experiments. Confirm heater-cycle control and calibration; never use it instead of certified gas alarms.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.microplanet.ma\/produit\/module-capteur-de-gpl-co-methane-mq9\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"MQ-9 CO and Methane Sensor Module | MicroPlanet\" \/>\n<meta property=\"og:description\" content=\"MQ-9 sensor module for supervised CO and methane experiments. Confirm heater-cycle control and calibration; never use it instead of certified gas alarms.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.microplanet.ma\/produit\/module-capteur-de-gpl-co-methane-mq9\/\" \/>\n<meta property=\"og:site_name\" content=\"MicroPlanet Maroc\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/ArduinoPlanet\/\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-19T19:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.microplanet.ma\/wp-content\/uploads\/2017\/04\/185-1.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"1000\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.microplanet.ma\\\/produit\\\/module-capteur-de-gpl-co-methane-mq9\\\/\",\"url\":\"https:\\\/\\\/www.microplanet.ma\\\/produit\\\/module-capteur-de-gpl-co-methane-mq9\\\/\",\"name\":\"MQ-9 CO and Methane Sensor Module | MicroPlanet\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.microplanet.ma\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.microplanet.ma\\\/produit\\\/module-capteur-de-gpl-co-methane-mq9\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.microplanet.ma\\\/produit\\\/module-capteur-de-gpl-co-methane-mq9\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.microplanet.ma\\\/wp-content\\\/uploads\\\/2017\\\/04\\\/185-1.png\",\"datePublished\":\"2017-04-13T12:17:01+00:00\",\"dateModified\":\"2026-10-19T19:00:00+00:00\",\"description\":\"MQ-9 sensor module for supervised CO and methane experiments. Confirm heater-cycle control and calibration; never use it instead of certified gas alarms.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.microplanet.ma\\\/produit\\\/module-capteur-de-gpl-co-methane-mq9\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.microplanet.ma\\\/produit\\\/module-capteur-de-gpl-co-methane-mq9\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.microplanet.ma\\\/produit\\\/module-capteur-de-gpl-co-methane-mq9\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.microplanet.ma\\\/wp-content\\\/uploads\\\/2017\\\/04\\\/185-1.png\",\"contentUrl\":\"https:\\\/\\\/www.microplanet.ma\\\/wp-content\\\/uploads\\\/2017\\\/04\\\/185-1.png\",\"width\":1000,\"height\":1000},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.microplanet.ma\\\/produit\\\/module-capteur-de-gpl-co-methane-mq9\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Accueil\",\"item\":\"https:\\\/\\\/www.microplanet.ma\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Shop\",\"item\":\"https:\\\/\\\/www.microplanet.ma\\\/shop\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"MQ-9 Carbon Monoxide and Methane Sensor Module\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.microplanet.ma\\\/#website\",\"url\":\"https:\\\/\\\/www.microplanet.ma\\\/\",\"name\":\"MicroPlanet Maroc\",\"description\":\"Arduino, Electronique DIY, Modules, Composants, Raspberry PI\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.microplanet.ma\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.microplanet.ma\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.microplanet.ma\\\/#organization\",\"name\":\"MicroPlanet\",\"url\":\"https:\\\/\\\/www.microplanet.ma\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.microplanet.ma\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.microplanet.ma\\\/wp-content\\\/uploads\\\/2023\\\/05\\\/logo5.png\",\"contentUrl\":\"https:\\\/\\\/www.microplanet.ma\\\/wp-content\\\/uploads\\\/2023\\\/05\\\/logo5.png\",\"width\":400,\"height\":133,\"caption\":\"MicroPlanet\"},\"image\":{\"@id\":\"https:\\\/\\\/www.microplanet.ma\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/ArduinoPlanet\\\/\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"MQ-9 CO and Methane Sensor Module | MicroPlanet","description":"MQ-9 sensor module for supervised CO and methane experiments. Confirm heater-cycle control and calibration; never use it instead of certified gas alarms.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.microplanet.ma\/produit\/module-capteur-de-gpl-co-methane-mq9\/","og_locale":"en_US","og_type":"article","og_title":"MQ-9 CO and Methane Sensor Module | MicroPlanet","og_description":"MQ-9 sensor module for supervised CO and methane experiments. Confirm heater-cycle control and calibration; never use it instead of certified gas alarms.","og_url":"https:\/\/www.microplanet.ma\/produit\/module-capteur-de-gpl-co-methane-mq9\/","og_site_name":"MicroPlanet Maroc","article_publisher":"https:\/\/www.facebook.com\/ArduinoPlanet\/","article_modified_time":"2026-10-19T19:00:00+00:00","og_image":[{"width":1000,"height":1000,"url":"https:\/\/www.microplanet.ma\/wp-content\/uploads\/2017\/04\/185-1.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.microplanet.ma\/produit\/module-capteur-de-gpl-co-methane-mq9\/","url":"https:\/\/www.microplanet.ma\/produit\/module-capteur-de-gpl-co-methane-mq9\/","name":"MQ-9 CO and Methane Sensor Module | MicroPlanet","isPartOf":{"@id":"https:\/\/www.microplanet.ma\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.microplanet.ma\/produit\/module-capteur-de-gpl-co-methane-mq9\/#primaryimage"},"image":{"@id":"https:\/\/www.microplanet.ma\/produit\/module-capteur-de-gpl-co-methane-mq9\/#primaryimage"},"thumbnailUrl":"https:\/\/www.microplanet.ma\/wp-content\/uploads\/2017\/04\/185-1.png","datePublished":"2017-04-13T12:17:01+00:00","dateModified":"2026-10-19T19:00:00+00:00","description":"MQ-9 sensor module for supervised CO and methane experiments. Confirm heater-cycle control and calibration; never use it instead of certified gas alarms.","breadcrumb":{"@id":"https:\/\/www.microplanet.ma\/produit\/module-capteur-de-gpl-co-methane-mq9\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.microplanet.ma\/produit\/module-capteur-de-gpl-co-methane-mq9\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.microplanet.ma\/produit\/module-capteur-de-gpl-co-methane-mq9\/#primaryimage","url":"https:\/\/www.microplanet.ma\/wp-content\/uploads\/2017\/04\/185-1.png","contentUrl":"https:\/\/www.microplanet.ma\/wp-content\/uploads\/2017\/04\/185-1.png","width":1000,"height":1000},{"@type":"BreadcrumbList","@id":"https:\/\/www.microplanet.ma\/produit\/module-capteur-de-gpl-co-methane-mq9\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Accueil","item":"https:\/\/www.microplanet.ma\/"},{"@type":"ListItem","position":2,"name":"Shop","item":"https:\/\/www.microplanet.ma\/shop\/"},{"@type":"ListItem","position":3,"name":"MQ-9 Carbon Monoxide and Methane Sensor Module"}]},{"@type":"WebSite","@id":"https:\/\/www.microplanet.ma\/#website","url":"https:\/\/www.microplanet.ma\/","name":"MicroPlanet Maroc","description":"Arduino, Electronique DIY, Modules, Composants, Raspberry PI","publisher":{"@id":"https:\/\/www.microplanet.ma\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.microplanet.ma\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.microplanet.ma\/#organization","name":"MicroPlanet","url":"https:\/\/www.microplanet.ma\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.microplanet.ma\/#\/schema\/logo\/image\/","url":"https:\/\/www.microplanet.ma\/wp-content\/uploads\/2023\/05\/logo5.png","contentUrl":"https:\/\/www.microplanet.ma\/wp-content\/uploads\/2023\/05\/logo5.png","width":400,"height":133,"caption":"MicroPlanet"},"image":{"@id":"https:\/\/www.microplanet.ma\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/ArduinoPlanet\/"]}]}},"_links":{"self":[{"href":"https:\/\/www.microplanet.ma\/en\/wp-json\/wp\/v2\/product\/53442","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.microplanet.ma\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.microplanet.ma\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.microplanet.ma\/en\/wp-json\/wp\/v2\/media\/53443"}],"wp:attachment":[{"href":"https:\/\/www.microplanet.ma\/en\/wp-json\/wp\/v2\/media?parent=53442"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.microplanet.ma\/en\/wp-json\/wp\/v2\/product_brand?post=53442"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.microplanet.ma\/en\/wp-json\/wp\/v2\/product_cat?post=53442"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.microplanet.ma\/en\/wp-json\/wp\/v2\/product_tag?post=53442"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}