{"id":692,"date":"2026-08-24T08:11:40","date_gmt":"2026-08-24T08:11:40","guid":{"rendered":"https:\/\/demo.autoboss.com\/index.php\/product\/autool-sml400-automotive-smoke-leak-detector\/"},"modified":"2026-10-19T01:45:28","modified_gmt":"2026-10-19T01:45:28","slug":"autool-sml400-automotive-smoke-leak-detector","status":"publish","type":"abcat_product","link":"https:\/\/autooltech.com\/zh-cn\/product\/autool-sml400-automotive-smoke-leak-detector\/","title":{"rendered":"SML400 Automotive Smoke Leak Detector"},"content":{"rendered":"<p>The AUTOOL SML400 is a high-end model in the automotive smoke leak detector series, featuring dual testing modes: Smoke Mode and Air Mode. Equipped with low-oxygen smoke generation technology and a built-in air pump, it requires no external air source\u2014simply connect it to a 12V vehicle power supply. The visible smoke quickly pinpoints small leaks in pipelines, eliminating unnecessary disassembly and blind repairs. Unlike detectors with only a single testing mode, the upgraded Air Mode offers greater testing flexibility and broader coverage. It is suitable for intake vacuum pipelines, EVAP systems, exhaust pipelines, crankcase ventilation systems, cooling pipelines, and vehicle vacuum systems. Compatible with gasoline vehicles, new energy vehicles, motorcycles, light trucks, and more, it flexibly adapts to various testing conditions, enhancing the accuracy and reliability of leak detection.<\/p>\n<div class=\"abcat-source-description\">\n<h3><strong><b>Product Features<\/b><\/strong><\/h3>\n<h3><strong><b>3 Modes in 1 \u2013 One Tool, Multiple Applications:<\/b><\/strong><\/h3>\n<p>\u2460Smoke Mode: Generates dense, non-toxic smoke to visually pinpoint leaks;<\/p>\n<p>\u2461 Air Mode: Outputs compressed air without smoke. Check the pressure gauge to determine if there is a leak;<\/p>\n<p>\u2462 Pressure Holding Leak Test Mode: Automatically runs a 3-minute pressure holding countdown. The screen directly displays \u201cLeak \/ No Leak,\u201dproviding quantitative results, reducing reliance on experience, and ensuring more rigorous testing.<\/p>\n<h3><strong><b>Built-In High-Power Air Pump \u2013 Ready for Mobile Repairs:<\/b><\/strong><\/h3>\n<p>Features an integrated air pump\u2014no external air compressor or workshop air source required. Simply connect it directly to a 12V vehicle battery. Ideal for mobile repairs, roadside assistance, and on-site testing.<\/p>\n<h3><strong><b>Smart Digital Display \u2013 Visualized Testing Data:<\/b><\/strong><\/h3>\n<p><strong><b>HD Digital Screen:<\/b><\/strong>\u00a0Displays the pressure holding countdown and automatically determines leak results.<\/p>\n<p><strong><b>Pressure Gauge + Flow Control Valve:<\/b><\/strong>\u00a0Enables real-time control of output air pressure and smoke flow. Adjustable pressure prevents high-pressure damage to sensitive vehicle pipelines.<\/p>\n<p><strong><b>Precision Flow Meter:<\/b><\/strong>\u00a0Allows smoke output to be freely adjusted as needed.<\/p>\n<h3><strong><b>Stable &amp; Fast Smoke Generation \u2013 Pinpoints Small Leaks:<\/b><\/strong><\/h3>\n<p>Utilizes low-oxygen smoke generation technology, producing smoke within 10 seconds and reaching full smoke output within 30 seconds. The dense, evenly distributed smoke makes even 0.1mm micro-cracks visually obvious\u2014eliminating unnecessary parts replacement and blind troubleshooting while significantly reducing repair time. Low smoke oil consumption also keeps long-term operating costs down.<\/p>\n<h3><strong><b>Multiple Safety Protections \u2013 Durable &amp; Overheat-Resistant:<\/b><\/strong><\/h3>\n<p>Equipped with intelligent temperature control and automatic overheat shutdown to prevent dry burning during extended operation. Automatic pressure stabilization protects vehicle pipelines from high-pressure impact. The robust sheet-metal housing offers excellent impact resistance, built for intensive, continuous use in busy repair shops.<\/p>\n<h3><strong><b>Full Vehicle Pipeline Coverage + Complete Accessories:<\/b><\/strong><\/h3>\n<p>Compatible with gasoline vehicles, new energy vehicles, motorcycles, ATVs, and more. Comes standard with multiple sizes of sealing plugs, inflatable bladder plugs, and extension hoses\u2014making it easy to seal various pipelines and openings without the need to purchase additional accessories.<\/p>\n<h3><b><\/b><strong><b>3-Year Warranty\uff1a<\/b><\/strong><\/h3>\n<p>For equipment damage caused by non-human factors, AUTOOL provides free replacement parts within three years. If you have any questions, please feel free to contact us\u2014we will respond within 24 hours. We are committed to being responsible for our products, our customers, and our partners.<\/p>\n<\/p><\/div>","protected":false},"excerpt":{"rendered":"<p>AUTOOL SML400 automotive smoke leak detector features Smoke and Air Modes for EVAP, vacuum, exhaust, intake, and cooling system leak testing.<\/p>","protected":false},"featured_media":693,"menu_order":0,"template":"","abcat_category":[5],"class_list":["post-692","abcat_product","type-abcat_product","status-publish","has-post-thumbnail","hentry","abcat_category-automotive-smoke-machine"],"_links":{"self":[{"href":"https:\/\/autooltech.com\/zh-cn\/wp-json\/wp\/v2\/abcat_product\/692","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/autooltech.com\/zh-cn\/wp-json\/wp\/v2\/abcat_product"}],"about":[{"href":"https:\/\/autooltech.com\/zh-cn\/wp-json\/wp\/v2\/types\/abcat_product"}],"version-history":[{"count":3,"href":"https:\/\/autooltech.com\/zh-cn\/wp-json\/wp\/v2\/abcat_product\/692\/revisions"}],"predecessor-version":[{"id":1608,"href":"https:\/\/autooltech.com\/zh-cn\/wp-json\/wp\/v2\/abcat_product\/692\/revisions\/1608"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/autooltech.com\/zh-cn\/wp-json\/wp\/v2\/media\/693"}],"wp:attachment":[{"href":"https:\/\/autooltech.com\/zh-cn\/wp-json\/wp\/v2\/media?parent=692"}],"wp:term":[{"taxonomy":"abcat_category","embeddable":true,"href":"https:\/\/autooltech.com\/zh-cn\/wp-json\/wp\/v2\/abcat_category?post=692"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}