{"id":4338,"date":"2026-01-14T11:53:14","date_gmt":"2026-01-14T11:53:14","guid":{"rendered":"https:\/\/ghanim.cloud\/?post_type=product&#038;p=4338"},"modified":"2026-01-22T13:27:09","modified_gmt":"2026-01-22T10:27:09","slug":"mq-9-gas-sensor-module","status":"publish","type":"product","link":"https:\/\/ghanim.cloud\/?product=mq-9-gas-sensor-module","title":{"rendered":"MQ-9 Gas Sensor Module"},"content":{"rendered":"<h4 style=\"margin:9px 0px;padding:0px;border:0px;font-weight:500;line-height:1.1;font-family:Arial, Helvetica, sans-serif;font-size:17px;vertical-align:baseline;color:#777777;background-color:#ffffff;\"><strong style=\"margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;\">Overview<\/strong><\/h4>\n<p class=\"text-justify\" style=\"margin:0px 0px 1em;padding:0px;border:0px;line-height:inherit;font-family:Arial, Helvetica, sans-serif;font-size:13px;vertical-align:baseline;min-height:1px;color:#777777;background-color:#ffffff;\">The gas sensing material used in the MQ-9 gas sensor is tin dioxide (SnO2) with lower conductivity in clean air. The low-temperature (1.5 V heating) is used to detect carbon monoxide by high-temperature cycle detection method. The conductivity of the sensor increases with the increase of the concentration of carbon monoxide gas in the air. The high temperature (5.0 V heating) detects the smoldering of the combustible gas methane and propane and cleans the low temperature. gas. The change in conductivity can be converted to an output signal corresponding to the gas concentration using a simple circuit. The MQ-9 gas sensor is highly sensitive to carbon monoxide, methane, and liquefied gases. This sensor can detect a variety of gases containing carbon monoxide and flammability. It is a low-cost sensor suitable for a variety of applications.<\/p>\n<h4 style=\"margin:9px 0px;padding:0px;border:0px;font-weight:500;line-height:1.1;font-family:Arial, Helvetica, sans-serif;font-size:17px;vertical-align:baseline;color:#777777;background-color:#ffffff;\"><strong style=\"margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;\">Technical specifications<\/strong><\/h4>\n<p style=\"margin:0px 0px 1em;padding:0px;border:0px;line-height:inherit;font-family:Arial, Helvetica, sans-serif;font-size:13px;vertical-align:baseline;min-height:1px;color:#777777;background-color:#ffffff;\">\u2022 Supply voltage: 5 V<\/p>\n<p style=\"margin:0px 0px 1em;padding:0px;border:0px;line-height:inherit;font-family:Arial, Helvetica, sans-serif;font-size:13px;vertical-align:baseline;min-height:1px;color:#777777;background-color:#ffffff;\">\u2022 Current: 150 mA<\/p>\n<p style=\"margin:0px 0px 1em;padding:0px;border:0px;line-height:inherit;font-family:Arial, Helvetica, sans-serif;font-size:13px;vertical-align:baseline;min-height:1px;color:#777777;background-color:#ffffff;\">\u2022 Detection concentration: 100 to 10,000 ppm for combustible gas<\/p>\n<p style=\"margin:0px 0px 1em;padding:0px;border:0px;line-height:inherit;font-family:Arial, Helvetica, sans-serif;font-size:13px;vertical-align:baseline;min-height:1px;color:#777777;background-color:#ffffff;\">\u2022 Detection concentration: 10 &#8211; 1,000 ppm for carbon monoxide<\/p>\n<p style=\"margin:0px 0px 1em;padding:0px;border:0px;line-height:inherit;font-family:Arial, Helvetica, sans-serif;font-size:13px;vertical-align:baseline;min-height:1px;color:#777777;background-color:#ffffff;\">\u2022 Temperature: -10 +50<span style=\"margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:0;font-family:inherit;font-size:9.75px;vertical-align:baseline;\">o<\/span>C<\/p>\n","protected":false},"excerpt":{"rendered":"<p class=\"text-justify\" style=\"margin:0px 0px 1em;padding:0px;border:0px;line-height:18px;font-family:Arial, Helvetica, sans-serif;font-size:13px;vertical-align:baseline;min-height:1px;color:#666666;background-color:#ffffff;\">Gas Sensor Mode MQ-9 detects the presence of carbon monoxide in concentrations of 10 to 1,000 ppm and fuel gas from 100 to 10,000 ppm.\u00a0The simple analog voltage interface requires only an analog input from the microcontroller.<\/p><\/p>\n","protected":false},"featured_media":4397,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[95,97,102],"product_tag":[],"class_list":["post-4338","product","type-product","status-publish","has-post-thumbnail","product_cat-all-categories","product_cat-all-products","product_cat-sensors","first","instock","sale","taxable","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/ghanim.cloud\/index.php?rest_route=\/wp\/v2\/product\/4338","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ghanim.cloud\/index.php?rest_route=\/wp\/v2\/product"}],"about":[{"href":"https:\/\/ghanim.cloud\/index.php?rest_route=\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/ghanim.cloud\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4338"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ghanim.cloud\/index.php?rest_route=\/wp\/v2\/media\/4397"}],"wp:attachment":[{"href":"https:\/\/ghanim.cloud\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4338"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/ghanim.cloud\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_brand&post=4338"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/ghanim.cloud\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_cat&post=4338"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/ghanim.cloud\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_tag&post=4338"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}