{"id":24840,"date":"2025-04-17T11:18:22","date_gmt":"2025-04-17T09:18:22","guid":{"rendered":"https:\/\/www.sensitron.it\/gas-detection-difference-between-infrared-and-catalytic-sensor\/"},"modified":"2025-04-17T16:30:14","modified_gmt":"2025-04-17T14:30:14","slug":"gas-detection-difference-between-infrared-and-catalytic-sensor","status":"publish","type":"post","link":"https:\/\/dev.sensitron.it\/en\/gas-detection-difference-between-infrared-and-catalytic-sensor\/","title":{"rendered":"Gas detection: difference between infrared and catalytic sensor"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"24840\" class=\"elementor elementor-24840 elementor-24830\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b3b9bdf e-flex e-con-boxed e-con e-parent\" data-id=\"b3b9bdf\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9e8e73a elementor-widget elementor-widget-text-editor\" data-id=\"9e8e73a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Gas detection is a crucial aspect of ensuring safety in domestic and industrial environments. Two of the most common technologies used in gas detectors are <strong>infrared<\/strong> and <strong>catalytic<\/strong> sensors. Each of these technologies has specific advantages. In this article, we will take a detailed look at the features, pros and cons of both technologies to help understand which may be the best choice for different applications.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-781616a elementor-widget elementor-widget-image\" data-id=\"781616a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"533\" src=\"https:\/\/dev.sensitron.it\/wp-content\/uploads\/2024\/06\/DSC04049-1024x682.png\" class=\"attachment-large size-large wp-image-24827\" alt=\"Metano\" srcset=\"https:\/\/dev.sensitron.it\/wp-content\/uploads\/2024\/06\/DSC04049-1024x682.png 1024w, https:\/\/dev.sensitron.it\/wp-content\/uploads\/2024\/06\/DSC04049-300x200.png 300w, https:\/\/dev.sensitron.it\/wp-content\/uploads\/2024\/06\/DSC04049-768x512.png 768w, https:\/\/dev.sensitron.it\/wp-content\/uploads\/2024\/06\/DSC04049-1536x1024.png 1536w, https:\/\/dev.sensitron.it\/wp-content\/uploads\/2024\/06\/DSC04049.png 2000w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d2338c6 elementor-widget elementor-widget-heading\" data-id=\"d2338c6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Gas detection: infrared sensors<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0900134 elementor-widget elementor-widget-text-editor\" data-id=\"0900134\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p data-pm-slice=\"1 3 []\"><img decoding=\"async\" class=\"size-medium wp-image-24828 alignleft\" src=\"https:\/\/dev.sensitron.it\/wp-content\/uploads\/2024\/06\/Sensore-Infrarosso-300x181.png\" alt=\"\" width=\"300\" height=\"181\" srcset=\"https:\/\/dev.sensitron.it\/wp-content\/uploads\/2024\/06\/Sensore-Infrarosso-300x181.png 300w, https:\/\/dev.sensitron.it\/wp-content\/uploads\/2024\/06\/Sensore-Infrarosso-768x463.png 768w, https:\/\/dev.sensitron.it\/wp-content\/uploads\/2024\/06\/Sensore-Infrarosso.png 1024w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>Infrared (IR) sensors detect the presence of gas by measuring<\/p>\n<p>the absorption of infrared light by gas molecules. An infrared light emitter sends a beam of light through the gas sample and a detector measures the intensity of the transmitted light. The amount of light absorbed is proportional to the concentration of gas present.<\/p>\n<p><strong>Sensors<\/strong> with infrared technology have several advantages:<\/p>\n<ul>\n<li><strong>Accuracy and Reliability<\/strong>: Infrared sensors offer very accurate and reliable detection, with a low probability of false alarms.<\/li>\n<li><strong>Long Life<\/strong>: These sensors have a long life, often longer than catalytic sensors, because they are not consumed by the detected gas.<\/li>\n<li><strong>Oxygen-free:<\/strong> IR sensors can operate effectively in oxygen-free environments, making them ideal for indoor or underground applications.<\/li>\n<li data-pm-slice=\"1 3 []\"><strong>Low Maintenance<\/strong>: They require little maintenance compared to catalytic sensors, reducing long-term operating costs.<\/li>\n<\/ul>\n<figure><\/figure>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6bbbdb6 elementor-widget elementor-widget-heading\" data-id=\"6bbbdb6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Gas detection: catalytic sensors<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d6fb6f6 elementor-widget elementor-widget-text-editor\" data-id=\"d6fb6f6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><img decoding=\"async\" class=\" wp-image-24829 alignleft\" src=\"https:\/\/dev.sensitron.it\/wp-content\/uploads\/2024\/06\/Sensore-catalitico-300x300.png\" alt=\"\" width=\"157\" height=\"157\" srcset=\"https:\/\/dev.sensitron.it\/wp-content\/uploads\/2024\/06\/Sensore-catalitico-300x300.png 300w, https:\/\/dev.sensitron.it\/wp-content\/uploads\/2024\/06\/Sensore-catalitico-150x150.png 150w, https:\/\/dev.sensitron.it\/wp-content\/uploads\/2024\/06\/Sensore-catalitico.png 600w\" sizes=\"(max-width: 157px) 100vw, 157px\" \/><\/p>\n<p><strong>Catalytic<\/strong> sensors detect the presence of combustible gases by means of a catalytic reaction. The sensor contains a small heated element covered by a catalyst. When the gas comes into contact with the element, it <strong>oxidises<\/strong>, generating heat. The increase in temperature causes a change in the electrical resistance of the element, which is measured to determine the gas concentration.<\/p>\n<p>Catalytic <strong>sensors<\/strong> have several advantages:<\/p>\n<ul>\n<li><strong>Lower Cost<\/strong>: Catalytic sensors are generally cheaper to produce and purchase than infrared sensors.<\/li>\n<li><strong>Wide Range of Detectable Gases<\/strong>: They can detect a wide range of combustible gases, including methane, propane and hydrogen.<\/li>\n<li><strong>Reliability in Various Conditions<\/strong>: They work well in a variety of environmental conditions and can be used in many industrial applications.<\/li>\n<\/ul>\n<figure><\/figure>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-60065fb elementor-widget elementor-widget-heading\" data-id=\"60065fb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Entrust the calibration and periodic maintenance of your gas detection systems to Sensitron<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-97076e4 elementor-widget elementor-widget-text-editor\" data-id=\"97076e4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Our gas detection systems have different maintenance requirements depending on the gases detected and the applications in which they are used. Scheduled maintenance ensures the efficiency of gas detection systems with the resulting safety of workers and environments.<\/p>\n<p>Entrusting periodic maintenance to <strong>our team<\/strong> means extending the life cycle of the instruments with an impact on both running costs and the environment.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d64f804 elementor-widget elementor-widget-image\" data-id=\"d64f804\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"533\" src=\"https:\/\/dev.sensitron.it\/wp-content\/uploads\/2025\/04\/75A4243-1024x682.png\" class=\"attachment-large size-large wp-image-24633\" alt=\"\" srcset=\"https:\/\/dev.sensitron.it\/wp-content\/uploads\/2025\/04\/75A4243-1024x682.png 1024w, https:\/\/dev.sensitron.it\/wp-content\/uploads\/2025\/04\/75A4243-300x200.png 300w, https:\/\/dev.sensitron.it\/wp-content\/uploads\/2025\/04\/75A4243-768x512.png 768w, https:\/\/dev.sensitron.it\/wp-content\/uploads\/2025\/04\/75A4243-1536x1024.png 1536w, https:\/\/dev.sensitron.it\/wp-content\/uploads\/2025\/04\/75A4243.png 2000w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-dfe67fc e-flex e-con-boxed e-con e-parent\" data-id=\"dfe67fc\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3367c80 elementor-widget elementor-widget-heading\" data-id=\"3367c80\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Discover our produtcs<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2932158 elementor-widget elementor-widget-text-editor\" data-id=\"2932158\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Sensitron gas detection systems are suitable for use in any application:<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e30517f e-grid e-con-full e-con e-child\" data-id=\"e30517f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e206405 elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"e206405\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><img loading=\"lazy\" decoding=\"async\" width=\"216\" height=\"279\" src=\"https:\/\/dev.sensitron.it\/wp-content\/uploads\/2025\/01\/hp-smart3g_new.png\" class=\"attachment-full size-full wp-image-23062\" alt=\"\" \/><\/figure><div class=\"elementor-image-box-content\"><h3 class=\"elementor-image-box-title\">SMART 3G D2<\/h3><p class=\"elementor-image-box-description\">Suitable for detecting flammable substances, toxic gases, refrigerants and oxygen in classified areas.ATEX, IECEx and SIL2\/3 certified.<\/p><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dbfef9b elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"dbfef9b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><img loading=\"lazy\" decoding=\"async\" width=\"2085\" height=\"2084\" src=\"https:\/\/dev.sensitron.it\/wp-content\/uploads\/2024\/10\/SMART3G-D3.png\" class=\"attachment-full size-full wp-image-19736\" alt=\"SMART 3G D3\" srcset=\"https:\/\/dev.sensitron.it\/wp-content\/uploads\/2024\/10\/SMART3G-D3.png 2085w, https:\/\/dev.sensitron.it\/wp-content\/uploads\/2024\/10\/SMART3G-D3-300x300.png 300w, https:\/\/dev.sensitron.it\/wp-content\/uploads\/2024\/10\/SMART3G-D3-1024x1024.png 1024w, https:\/\/dev.sensitron.it\/wp-content\/uploads\/2024\/10\/SMART3G-D3-150x150.png 150w, https:\/\/dev.sensitron.it\/wp-content\/uploads\/2024\/10\/SMART3G-D3-768x768.png 768w, https:\/\/dev.sensitron.it\/wp-content\/uploads\/2024\/10\/SMART3G-D3-1536x1536.png 1536w, https:\/\/dev.sensitron.it\/wp-content\/uploads\/2024\/10\/SMART3G-D3-2048x2048.png 2048w\" sizes=\"(max-width: 2085px) 100vw, 2085px\" \/><\/figure><div class=\"elementor-image-box-content\"><h3 class=\"elementor-image-box-title\">SMART 3G D3<\/h3><p class=\"elementor-image-box-description\">Suitable for gas detection in classified areas, ATEX, IECEx and SIL2\/3 certified, allows for non-intrusive field calibration.<\/p><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-01d8787 elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"01d8787\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><img loading=\"lazy\" decoding=\"async\" width=\"2084\" height=\"2084\" src=\"https:\/\/dev.sensitron.it\/wp-content\/uploads\/2024\/10\/MULTISCAN-S1-positivo.png\" class=\"attachment-full size-full wp-image-19759\" alt=\"\" srcset=\"https:\/\/dev.sensitron.it\/wp-content\/uploads\/2024\/10\/MULTISCAN-S1-positivo.png 2084w, https:\/\/dev.sensitron.it\/wp-content\/uploads\/2024\/10\/MULTISCAN-S1-positivo-300x300.png 300w, https:\/\/dev.sensitron.it\/wp-content\/uploads\/2024\/10\/MULTISCAN-S1-positivo-1024x1024.png 1024w, https:\/\/dev.sensitron.it\/wp-content\/uploads\/2024\/10\/MULTISCAN-S1-positivo-150x150.png 150w, https:\/\/dev.sensitron.it\/wp-content\/uploads\/2024\/10\/MULTISCAN-S1-positivo-768x768.png 768w, https:\/\/dev.sensitron.it\/wp-content\/uploads\/2024\/10\/MULTISCAN-S1-positivo-1536x1536.png 1536w, https:\/\/dev.sensitron.it\/wp-content\/uploads\/2024\/10\/MULTISCAN-S1-positivo-2048x2048.png 2048w\" sizes=\"(max-width: 2084px) 100vw, 2084px\" \/><\/figure><div class=\"elementor-image-box-content\"><h3 class=\"elementor-image-box-title\">MULTISCAN++ S1\/S2<\/h3><p class=\"elementor-image-box-description\">Designed to meet the widest market demand for flexibility, they allow the management of up to 264 detectors. ATEX and SIL certified.<\/p><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e5bafdf e-flex e-con-boxed e-con e-parent\" data-id=\"e5bafdf\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-46ccc97 elementor-widget elementor-widget-heading\" data-id=\"46ccc97\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Explore in virtual reality<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b68a362 elementor-widget elementor-widget-text-editor\" data-id=\"b68a362\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Within the <strong>Sensitron<\/strong> metaverse, you can explore pharmaceutical environments reconstructed in <strong>virtual reality<\/strong>. Walk inside a production area and observe a clean room, learn more about the dangers of gas.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-352ca98 elementor-widget elementor-widget-image\" data-id=\"352ca98\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/dev.sensitron.it\/wp-content\/uploads\/2024\/02\/Spatial.io-ITA.png\" title=\"\" alt=\"\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2f34a95 elementor-widget elementor-widget-video\" data-id=\"2f34a95\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/IjdkuaN6iBU?si=T0MpYQenR-9Cop4v&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1ce1740 elementor-widget elementor-widget-text-editor\" data-id=\"1ce1740\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Follow us on <strong><a style=\"color: #0000ff;\" href=\"https:\/\/www.linkedin.com\/company\/sensitron-srl\/\">Linkedin<\/a><\/strong><\/p>\n<p>Follow us on <strong><a style=\"color: #0000ff;\" href=\"https:\/\/www.instagram.com\/sensitron\/\">Instagram<\/a><\/strong><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Gas detection is a crucial aspect of ensuring safety in domestic and industrial environments. Two of the most common technologies used in gas detectors are infrared and catalytic sensors. Each of these technologies has specific advantages. In this article, we will take a detailed look at the features, pros and cons of both technologies to [&hellip;]<\/p>\n","protected":false},"author":551,"featured_media":24842,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[102],"tags":[],"class_list":["post-24840","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles-en"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.2 (Yoast SEO v27.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Gas detection: difference between infrared and catalytic sensor | Sensitron<\/title>\n<meta name=\"description\" content=\"Gas detection technologies: infrared and catalytic sensors. Let&#039;s find out together what the differences between the two are.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dev.sensitron.it\/en\/gas-detection-difference-between-infrared-and-catalytic-sensor\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Gas detection: difference between infrared and catalytic sensor\" \/>\n<meta property=\"og:description\" content=\"Gas detection is a crucial aspect of ensuring safety in domestic and industrial environments. 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