{"id":312,"date":"2025-11-20T19:51:30","date_gmt":"2025-11-20T19:51:30","guid":{"rendered":"https:\/\/hamtechtechnologies.com\/index.php\/product\/mq-4-methane-sensor\/"},"modified":"2025-11-30T16:30:42","modified_gmt":"2025-11-30T16:30:42","slug":"mq-4-methane-sensor","status":"publish","type":"product","link":"https:\/\/hamtechtechnologies.com\/index.php\/product\/mq-4-methane-sensor\/","title":{"rendered":"MQ-4 Methane Sensor"},"content":{"rendered":"<p data-start=\"316\" data-end=\"839\">The <strong data-start=\"349\" data-end=\"372\">MQ-4 Methane Sensor<\/strong> is a high-sensitivity gas sensor module capable of detecting methane and natural gas concentrations in the air. It features an onboard analog and digital output, allowing easy integration with microcontrollers like Arduino, ESP32, and Raspberry Pi. The sensor includes a potentiometer for threshold adjustment and an onboard LED indicator for digital output. It is widely used in home safety systems, industrial gas leak detection, and DIY gas monitoring projects.<\/p>\n<p data-start=\"841\" data-end=\"859\"><strong data-start=\"841\" data-end=\"857\">Key Features<\/strong><\/p>\n<ul data-start=\"860\" data-end=\"1107\">\n<li data-start=\"860\" data-end=\"901\">\n<p data-start=\"862\" data-end=\"901\">Detects methane (CH\u2084) and natural gas<\/p>\n<\/li>\n<li data-start=\"902\" data-end=\"932\">\n<p data-start=\"904\" data-end=\"932\">Analog and digital outputs<\/p>\n<\/li>\n<li data-start=\"933\" data-end=\"978\">\n<p data-start=\"935\" data-end=\"978\">Onboard potentiometer to adjust threshold<\/p>\n<\/li>\n<li data-start=\"979\" data-end=\"1022\">\n<p data-start=\"981\" data-end=\"1022\">Digital LED indicator for gas detection<\/p>\n<\/li>\n<li data-start=\"1023\" data-end=\"1071\">\n<p data-start=\"1025\" data-end=\"1071\">Compatible with Arduino, ESP32, Raspberry Pi<\/p>\n<\/li>\n<li data-start=\"1072\" data-end=\"1107\">\n<p data-start=\"1074\" data-end=\"1107\">Fast response and recovery time<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1109\" data-end=\"1129\"><strong data-start=\"1109\" data-end=\"1127\">Specifications<\/strong><\/p>\n<div class=\"_tableContainer_1rjym_1\">\n<div class=\"group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse\" tabindex=\"-1\">\n<table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"1131\" data-end=\"1465\">\n<thead data-start=\"1131\" data-end=\"1154\">\n<tr data-start=\"1131\" data-end=\"1154\">\n<th data-start=\"1131\" data-end=\"1141\" data-col-size=\"sm\">Feature<\/th>\n<th data-start=\"1141\" data-end=\"1154\" data-col-size=\"sm\">Details<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"1179\" data-end=\"1465\">\n<tr data-start=\"1179\" data-end=\"1210\">\n<td data-start=\"1179\" data-end=\"1199\" data-col-size=\"sm\">Operating Voltage<\/td>\n<td data-start=\"1199\" data-end=\"1210\" data-col-size=\"sm\">5V DC<\/td>\n<\/tr>\n<tr data-start=\"1211\" data-end=\"1257\">\n<td data-start=\"1211\" data-end=\"1229\" data-col-size=\"sm\">Detection Range<\/td>\n<td data-start=\"1229\" data-end=\"1257\" data-col-size=\"sm\">200\u201310,000 ppm methane<\/td>\n<\/tr>\n<tr data-start=\"1258\" data-end=\"1305\">\n<td data-start=\"1258\" data-end=\"1267\" data-col-size=\"sm\">Output<\/td>\n<td data-start=\"1267\" data-end=\"1305\" data-col-size=\"sm\">Analog voltage, Digital HIGH\/LOW<\/td>\n<\/tr>\n<tr data-start=\"1306\" data-end=\"1350\">\n<td data-start=\"1306\" data-end=\"1321\" data-col-size=\"sm\">Preheat Time<\/td>\n<td data-start=\"1321\" data-end=\"1350\" data-col-size=\"sm\">24\u201348 hours (first use)<\/td>\n<\/tr>\n<tr data-start=\"1351\" data-end=\"1386\">\n<td data-start=\"1351\" data-end=\"1373\" data-col-size=\"sm\">Current Consumption<\/td>\n<td data-start=\"1373\" data-end=\"1386\" data-col-size=\"sm\">\u2264150 mA<\/td>\n<\/tr>\n<tr data-start=\"1387\" data-end=\"1430\">\n<td data-start=\"1387\" data-end=\"1411\" data-col-size=\"sm\">Operating Temperature<\/td>\n<td data-start=\"1411\" data-end=\"1430\" data-col-size=\"sm\">-10\u00b0C to 50\u00b0C<\/td>\n<\/tr>\n<tr data-start=\"1431\" data-end=\"1465\">\n<td data-start=\"1431\" data-end=\"1444\" data-col-size=\"sm\">Dimensions<\/td>\n<td data-start=\"1444\" data-end=\"1465\" data-col-size=\"sm\">32 \u00d7 20 \u00d7 18 mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p data-start=\"1467\" data-end=\"1485\"><strong data-start=\"1467\" data-end=\"1483\">Applications<\/strong><\/p>\n<ul data-start=\"1486\" data-end=\"1661\">\n<li data-start=\"1486\" data-end=\"1535\">\n<p data-start=\"1488\" data-end=\"1535\">Gas leakage detection in homes and industries<\/p>\n<\/li>\n<li data-start=\"1536\" data-end=\"1565\">\n<p data-start=\"1538\" data-end=\"1565\">Smart home safety systems<\/p>\n<\/li>\n<li data-start=\"1566\" data-end=\"1594\">\n<p data-start=\"1568\" data-end=\"1594\">Environmental monitoring<\/p>\n<\/li>\n<li data-start=\"1595\" data-end=\"1624\">\n<p data-start=\"1597\" data-end=\"1624\">DIY gas detector projects<\/p>\n<\/li>\n<li data-start=\"1625\" data-end=\"1661\">\n<p data-start=\"1627\" data-end=\"1661\">IoT-based gas monitoring systems<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1663\" data-end=\"1697\"><strong data-start=\"1663\" data-end=\"1695\">Compatible Boards \/ Circuits<\/strong><\/p>\n<ul data-start=\"1698\" data-end=\"1862\">\n<li data-start=\"1698\" data-end=\"1727\">\n<p data-start=\"1700\" data-end=\"1727\">Arduino (Uno, Nano, Mega)<\/p>\n<\/li>\n<li data-start=\"1728\" data-end=\"1747\">\n<p data-start=\"1730\" data-end=\"1747\">ESP32 \/ ESP8266<\/p>\n<\/li>\n<li data-start=\"1748\" data-end=\"1792\">\n<p data-start=\"1750\" data-end=\"1792\">Raspberry Pi (via ADC for analog output)<\/p>\n<\/li>\n<li data-start=\"1793\" data-end=\"1862\">\n<p data-start=\"1795\" data-end=\"1862\">Can interface with relays, alarms, and displays for alert systems<\/p>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>The <strong data-start=\"176\" data-end=\"184\">MQ-4<\/strong> sensor detects methane (CH\u2084) gas and natural gas in the air, suitable for gas leakage detection and safety monitoring projects.<\/p>\n","protected":false},"featured_media":581,"comment_status":"open","ping_status":"closed","template":"","meta":{"postBodyCss":"","postBodyMargin":[],"postBodyPadding":[],"postBodyBackground":{"backgroundType":"classic","gradient":""}},"product_brand":[],"product_cat":[145,420,356,106,403],"product_tag":[221,220,217],"class_list":{"0":"post-312","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-analog-electronics","7":"product_cat-diy-electronics","8":"product_cat-electronics-components","9":"product_cat-iot-components","10":"product_cat-modules-sensors","11":"product_tag-methane","12":"product_tag-mq-4","13":"product_tag-sensor","15":"first","16":"instock","17":"taxable","18":"shipping-taxable","19":"purchasable","20":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/product\/312","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/comments?post=312"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/media\/581"}],"wp:attachment":[{"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/media?parent=312"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/product_brand?post=312"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/product_cat?post=312"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/product_tag?post=312"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}