{"id":53418,"date":"2017-04-13T11:40:18","date_gmt":"2017-04-13T10:40:18","guid":{"rendered":"https:\/\/www.microplanet.ma\/?post_type=product&#038;p=53418"},"modified":"2026-10-19T18:56:59","modified_gmt":"2026-10-19T18:56:59","slug":"mq-5-lpg-natural-gas-sensor-module","status":"publish","type":"product","link":"https:\/\/www.microplanet.ma\/en\/produit\/mq-5-lpg-natural-gas-sensor-module\/","title":{"rendered":"MQ-5 LPG and Natural Gas Sensor Module"},"content":{"rendered":"<h3>MQ-5 LPG and Natural Gas Sensor Module<\/h3>\n<p>This module uses an MQ-5 tin-dioxide semiconductor sensor that responds to several combustible gases, especially LPG\/propane and methane, which is a major component of natural gas. Response varies with gas composition and environmental conditions, so the sensor is not selective enough to identify a gas mixture or provide a dependable calibrated concentration without a carefully designed and calibrated system.<\/p>\n<h4>\ud83d\udd27 Sensor reference specifications<\/h4>\n<ul>\n<li>Sensor type: semiconductor (SnO\u2082)<\/li>\n<li>Manufacturer-stated targets: LPG, methane and propane<\/li>\n<li>Manufacturer-stated test range: 300\u201310,000 ppm for CH\u2084\/C\u2083H\u2088 under specified test conditions<\/li>\n<li>Heater supply: 5.0 V nominal<\/li>\n<li>Heater power: up to approximately 950 mW in the cited specification<\/li>\n<li>Sensitivity adjustment: present on some module versions; verify the actual board<\/li>\n<\/ul>\n<p>The range above is a sensor test specification, not a promise that this breakout gives accurate ppm readings. The French listing mentions \u201ccoal gas\u201d; gas mixtures vary, and that phrase should not be treated as a guaranteed target or a selective identification capability.<\/p>\n<h4>\u2699\ufe0f Warm-up and calibration<\/h4>\n<p>The sensing element is heated. The manufacturer specifies a preheat period of at least 48 hours for its standard test conditions. Allow readings to stabilize and calibrate the actual sensor and circuit before using thresholds. Temperature, humidity, airflow, sensor age and other vapours can change the response.<\/p>\n<h4>\ud83d\udd0c Typical breakout connections<\/h4>\n<p>Check the labels on the supplied board; common versions provide VCC, GND, analog output (AO) and a comparator-based digital output (DO). The heater normally requires a stable 5 V supply and can consume close to 1 W. Use an appropriately rated supply and never power the heater from a microcontroller GPIO. Check AO\/DO voltage before connecting to a 3.3 V-only input; use suitable level shifting or protection where needed.<\/p>\n<h4>\ud83d\udca1 Suitable prototype uses<\/h4>\n<ul>\n<li>Demonstrating combustible-gas sensor response in a supervised lab<\/li>\n<li>Microcontroller analog-input and threshold-comparator experiments<\/li>\n<li>Non-critical trend monitoring prototypes<\/li>\n<\/ul>\n<p><strong>Safety notice:<\/strong> this hobby module is not a certified LPG or natural-gas alarm, industrial monitor or life-safety device. Do not rely on it to detect a leak or protect people or property, and do not replace approved alarms with it. Use certified equipment and follow local safety requirements for real gas detection. Never release flammable gas intentionally for testing.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>MQ-5 semiconductor module for LPG, propane and methane response experiments. Requires a heated element, warm-up and calibration; not a certified gas alarm or life-safety device.<\/p>\n","protected":false},"featured_media":53419,"template":"","meta":[],"product_brand":[],"product_cat":[314,316],"product_tag":[],"class_list":["post-53418","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-5 LPG and Natural Gas Sensor Module | MicroPlanet<\/title>\n<meta name=\"description\" content=\"MQ-5 flammable-gas sensor module for supervised prototypes. 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