{"id":80958,"date":"2026-09-06T07:36:53","date_gmt":"2026-09-06T15:36:53","guid":{"rendered":"https:\/\/autoolstore.com\/?post_type=product&#038;p=80958"},"modified":"2026-09-20T23:23:29","modified_gmt":"2026-09-21T07:23:29","slug":"autool-sml400-smoke-machine-leak-detector","status":"publish","type":"product","link":"https:\/\/autoolstore.com\/product\/autool-sml400-smoke-machine-leak-detector\/","title":{"rendered":"AUTOOL SML400 Digital Automotive Smoke Leak Detector"},"content":{"rendered":"\r\n<div class=\"autool-page-shell\"><main id=\"sml400-product-page\" class=\"autool-description autool-product-page\" data-autool-lightbox=\"off\" data-autool-mobile-nav=\"false\" data-autool-rail-controls=\"true\">\r\n<section id=\"autool-overview\" class=\"autool-section autool-product-hero autool-section--overview\" data-autool-nav=\"Overview\" data-autool-surface=\"dark\">\r\n<div class=\"autool-layout-container autool-product-hero__grid\">\r\n<div class=\"autool-product-hero__copy\">\r\n<p class=\"autool-product-hero__eyebrow\">AUTOOL SML400 \u00b7 TFT Smoke Tester with Pressure-Hold Check<\/p>\r\n<h2 class=\"autool-product-hero__title\">Screen a Timed Hold Result Before Smoke Tracing<\/h2>\r\n<p class=\"autool-product-hero__lead\">This automotive smoke machine runs an automatic 180-second pressure-hold routine and shows its countdown plus configured PASS or ERR result on the TFT screen. Then use Smoke Mode to trace visible escaping smoke. Separate pressure and flow indications, adjustable built-in air, and expanded sealing adapters support the permitted test setup.<\/p>\r\n<ul class=\"autool-product-hero__capabilities\" aria-label=\"AUTOOL SML400 key benefits\">\r\n<li>180-Second Pressure Hold<\/li>\r\n<li>TFT PASS \/ ERR Result<\/li>\r\n<li>Built-In Pump, No Shop Air<\/li>\r\n<li>Pressure And Flow Feedback<\/li>\r\n<li>Expanded Sealing Adapter Kit<\/li>\r\n<\/ul>\r\n<nav class=\"autool-product-hero__actions\" aria-label=\"AUTOOL SML400 sections\"><a class=\"autool-product-button autool-product-button--primary\" href=\"#autool-features\">Explore Features<\/a><a class=\"autool-product-button\" href=\"#autool-use\">View Workflow<\/a><a class=\"autool-product-button\" href=\"#autool-comparison\">Specs &amp; Compare<\/a><\/nav><\/div>\r\n<figure class=\"autool-product-hero__media\"><img decoding=\"async\" src=\"https:\/\/www.autooltech.com\/wp-content\/uploads\/2026\/03\/SML400.png\" alt=\"AUTOOL SML400 automotive smoke leak detector\" \/><\/figure>\r\n<\/div>\r\n<\/section>\r\n<aside class=\"autool-product-metrics\" aria-label=\"AUTOOL SML400 at a glance\">\r\n<div class=\"autool-product-metrics__inner\">\r\n<div class=\"autool-product-metric\"><strong>0.6-6 L\/min<\/strong>Smoke Flow Range<\/div>\r\n<div class=\"autool-product-metric\"><strong>180 s<\/strong>Pressure-Hold Countdown<\/div>\r\n<div class=\"autool-product-metric\"><strong>DC 12V<\/strong>Power Supply<\/div>\r\n<div class=\"autool-product-metric\"><strong>TFT<\/strong>Digital Display<\/div>\r\n<\/div>\r\n<\/aside>\r\n<section id=\"autool-features\" class=\"autool-section autool-product-section--soft autool-section--value\" data-autool-surface=\"base\">\r\n<div class=\"autool-layout-container\"><header class=\"autool-section-head\">\r\n<p class=\"autool-subhead\">Key Features<\/p>\r\n<h2 class=\"autool-title\">Three-Minute Pressure Hold with TFT Status<\/h2>\r\n<\/header>\r\n<div class=\"autool-product-grid autool-product-grid--3 autool-product-rail\" data-autool-rail=\"features\">\r\n<article class=\"autool-product-card\">\r\n<h3>Smoke, Air and Pressure-Hold Modes<\/h3>\r\n<p>Run Air mode or the three-minute pressure-hold routine before Smoke mode, then use visible smoke to inspect an indicated escape path.<\/p>\r\n<\/article>\r\n<article class=\"autool-product-card\">\r\n<h3>Built-In Air Pump<\/h3>\r\n<p>The internal pump supplies test airflow from the 12 V power connection, keeping the pressure and smoke workflow in one unit.<\/p>\r\n<\/article>\r\n<article class=\"autool-product-card\">\r\n<h3>TFT Result Display<\/h3>\r\n<p>The TFT shows the 180-second countdown and the routine&#8217;s PASS or ERR result for the configured sealed test.<\/p>\r\n<\/article>\r\n<article class=\"autool-product-card\">\r\n<h3>Pressure Gauge and Flow Meter<\/h3>\r\n<p>Use the gauge for pressure and the flow meter for delivery while filling and checking the selected test volume.<\/p>\r\n<\/article>\r\n<article class=\"autool-product-card\">\r\n<h3>Adjustable Flow and Pressure<\/h3>\r\n<p>Adjust pressure and flow gradually to the values permitted by the vehicle or component procedure.<\/p>\r\n<\/article>\r\n<article class=\"autool-product-card\">\r\n<h3>Oil Level Gauge and Drain Valve<\/h3>\r\n<p>Check the oil level before use and drain aged or excess fluid before refilling or storage.<\/p>\r\n<\/article>\r\n<article class=\"autool-product-card\">\r\n<h3>Overheat Protection<\/h3>\r\n<p>Temperature protection stops operation when the model reaches its protection condition; allow the unit to cool before further use.<\/p>\r\n<\/article>\r\n<article class=\"autool-product-card\">\r\n<h3>Expanded Sealing Adapter Kit<\/h3>\r\n<p>The included sealing and connection accessories support different opening types; verify each adapter against the selected test point.<\/p>\r\n<\/article>\r\n<article class=\"autool-product-card\">\r\n<h3>3 Years Warranty Support<\/h3>\r\n<p>Main unit: 3-year warranty. Standard accessories: 1-year warranty. <a href=\"https:\/\/autoolstore.com\/warranty-policy\/\" target=\"_blank\" rel=\"noopener\">Warranty Policy<\/a>.<\/p>\r\n<\/article>\r\n<\/div>\r\n<\/div>\r\n<\/section>\r\n<section id=\"autool-use\" class=\"autool-section autool-section--workflow autool-section--workflow-anchor\" data-autool-surface=\"dark\">\r\n<div class=\"autool-layout-container\"><header class=\"autool-section-head\">\r\n<p class=\"autool-subhead\">How to Use<\/p>\r\n<h2 class=\"autool-title\">Seal, Run the Hold Check, Add Smoke, and Inspect<\/h2>\r\n<\/header>\r\n<div class=\"autool-workflow\" data-autool-workflow=\"\" data-workflow-mode=\"panels\">\r\n<div class=\"autool-workflow__tabs\" role=\"tablist\" aria-label=\"sml400 workflow\" data-workflow-tabs=\"\"><button id=\"sml400-tab-0\" class=\"autool-workflow__tab\" tabindex=\"0\" role=\"tab\" type=\"button\" aria-controls=\"sml400-panel-0\" aria-selected=\"true\" data-workflow-step=\"0\">01<br \/><wbr \/>Confirm<wbr \/> the<wbr \/> Procedure<\/button><button id=\"sml400-tab-1\" class=\"autool-workflow__tab\" tabindex=\"-1\" role=\"tab\" type=\"button\" aria-controls=\"sml400-panel-1\" aria-selected=\"false\" data-workflow-step=\"1\">02<br \/><wbr \/>Prepare<wbr \/> the<wbr \/> Machine<\/button><button id=\"sml400-tab-2\" class=\"autool-workflow__tab\" tabindex=\"-1\" role=\"tab\" type=\"button\" aria-controls=\"sml400-panel-2\" aria-selected=\"false\" data-workflow-step=\"2\">03<br \/><wbr \/>Connect<wbr \/> and<wbr \/> Isolate<\/button><button id=\"sml400-tab-3\" class=\"autool-workflow__tab\" tabindex=\"-1\" role=\"tab\" type=\"button\" aria-controls=\"sml400-panel-3\" aria-selected=\"false\" data-workflow-step=\"3\">04<br \/><wbr \/>Run<wbr \/> Air<wbr \/> or<wbr \/> Pressure<wbr \/> Mode<\/button><button id=\"sml400-tab-4\" class=\"autool-workflow__tab\" tabindex=\"-1\" role=\"tab\" type=\"button\" aria-controls=\"sml400-panel-4\" aria-selected=\"false\" data-workflow-step=\"4\">05<br \/><wbr \/>Use<wbr \/> Smoke<wbr \/> to<wbr \/> Inspect<\/button><button id=\"sml400-tab-5\" class=\"autool-workflow__tab\" tabindex=\"-1\" role=\"tab\" type=\"button\" aria-controls=\"sml400-panel-5\" aria-selected=\"false\" data-workflow-step=\"5\">06<br \/><wbr \/>Repair<wbr \/> and<wbr \/> Retest<\/button><\/div>\r\n<div class=\"autool-workflow__position\"><span class=\"autool-workflow__position-label\">Step progress<\/span><span class=\"autool-workflow__position-count\" data-workflow-count=\"\">1 \/ 6<\/span><\/div>\r\n<div class=\"autool-workflow__content\">\r\n<div class=\"autool-workflow__main\">\r\n<div class=\"autool-workflow__panels\">\r\n<article id=\"sml400-panel-0\" class=\"autool-workflow__panel\" tabindex=\"0\" role=\"tabpanel\" aria-labelledby=\"sml400-tab-0\" data-workflow-panel=\"\">\r\n<div class=\"autool-workflow__number\">01<\/div>\r\n<h3 class=\"autool-workflow__title\">Confirm the Procedure<\/h3>\r\n<p class=\"autool-workflow__description\">Identify the target system, permitted pressure or threshold, access point, valve state and openings that must be sealed.<\/p>\r\n<\/article>\r\n<article id=\"sml400-panel-1\" class=\"autool-workflow__panel\" tabindex=\"0\" role=\"tabpanel\" hidden=\"\" aria-labelledby=\"sml400-tab-1\" data-workflow-panel=\"\">\r\n<div class=\"autool-workflow__number\">02<\/div>\r\n<h3 class=\"autool-workflow__title\">Prepare the Machine<\/h3>\r\n<p class=\"autool-workflow__description\">Inspect the power lead, air connection where required, hose and adapters. Add or confirm only the smoke oil specified by the manual.<\/p>\r\n<\/article>\r\n<article id=\"sml400-panel-2\" class=\"autool-workflow__panel\" tabindex=\"0\" role=\"tabpanel\" hidden=\"\" aria-labelledby=\"sml400-tab-2\" data-workflow-panel=\"\">\r\n<div class=\"autool-workflow__number\">03<\/div>\r\n<h3 class=\"autool-workflow__title\">Connect and Isolate<\/h3>\r\n<p class=\"autool-workflow__description\">Use the correct adapter, make a leak-free connection to the selected test point, and isolate normal escape paths according to the vehicle procedure.<\/p>\r\n<\/article>\r\n<article id=\"sml400-panel-3\" class=\"autool-workflow__panel\" tabindex=\"0\" role=\"tabpanel\" hidden=\"\" aria-labelledby=\"sml400-tab-3\" data-workflow-panel=\"\">\r\n<div class=\"autool-workflow__number\">04<\/div>\r\n<h3 class=\"autool-workflow__title\">Run Air or Pressure Mode<\/h3>\r\n<p class=\"autool-workflow__description\">Use Air Mode or the pressure-hold routine first and observe the gauge or display under the selected test conditions.<\/p>\r\n<\/article>\r\n<article id=\"sml400-panel-4\" class=\"autool-workflow__panel\" tabindex=\"0\" role=\"tabpanel\" hidden=\"\" aria-labelledby=\"sml400-tab-4\" data-workflow-panel=\"\">\r\n<div class=\"autool-workflow__number\">05<\/div>\r\n<h3 class=\"autool-workflow__title\">Use Smoke to Inspect<\/h3>\r\n<p class=\"autool-workflow__description\">Switch to Smoke mode when visual tracing is needed, allow the connected volume to fill, and inspect accessible joints, hoses and seals for escaping smoke.<\/p>\r\n<\/article>\r\n<article id=\"sml400-panel-5\" class=\"autool-workflow__panel\" tabindex=\"0\" role=\"tabpanel\" hidden=\"\" aria-labelledby=\"sml400-tab-5\" data-workflow-panel=\"\">\r\n<div class=\"autool-workflow__number\">06<\/div>\r\n<h3 class=\"autool-workflow__title\">Repair and Retest<\/h3>\r\n<p class=\"autool-workflow__description\">Repair the confirmed escape path, repeat the same controlled test, and continue with functional diagnosis if the result is inconclusive or no smoke is visible.<\/p>\r\n<\/article>\r\n<\/div>\r\n<div class=\"autool-workflow__actions\"><button class=\"autool-workflow__button\" disabled=\"disabled\" type=\"button\" data-workflow-prev=\"\">\u2190 Previous<\/button><button class=\"autool-workflow__button autool-workflow__button--next\" type=\"button\" data-workflow-next=\"\">Next step \u2192<\/button><\/div>\r\n<\/div>\r\n<aside class=\"autool-workflow__safety\" data-workflow-safety=\"\">\r\n<h3 class=\"autool-workflow__safety-title\">Before You Start<\/h3>\r\n<ul class=\"autool-workflow__safety-list\">\r\n<li>The machine rating is not permission to apply its maximum to every vehicle system. Use the OEM or component procedure and the lowest appropriate controlled setting.<\/li>\r\n<li>Use a stable DC 12 V supply and the built-in pump. Confirm the selected unit&#8217;s maximum output rating before connecting a vehicle system.<\/li>\r\n<\/ul>\r\n<\/aside>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/section>\r\n<section id=\"autool-safety\" class=\"autool-section autool-product-section--soft\" data-autool-surface=\"base\">\r\n<div class=\"autool-layout-container\"><header class=\"autool-section-head\">\r\n<p class=\"autool-subhead\">Safety &amp; Compatibility<\/p>\r\n<h2 class=\"autool-title\">Use the Display Only with the Specified Test Setup<\/h2>\r\n<\/header>\r\n<div class=\"autool-product-grid autool-product-grid--3 autool-product-rail\" data-autool-rail=\"safety\">\r\n<article class=\"autool-product-card\">\r\n<h3>Match Pressure to the System<\/h3>\r\n<p>The machine rating is not permission to apply its maximum to every vehicle system. Use the OEM or component procedure and the lowest appropriate controlled setting.<\/p>\r\n<\/article>\r\n<article class=\"autool-product-card\">\r\n<h3>Confirm Air and Power<\/h3>\r\n<p>Use a stable DC 12 V supply and the built-in pump. Confirm the selected unit&#8217;s maximum output rating before connecting a vehicle system.<\/p>\r\n<\/article>\r\n<article class=\"autool-product-card\">\r\n<h3>Protect People and Components<\/h3>\r\n<p>Work in a dry, well-ventilated area away from flame and hot sources; use eye and hand protection and avoid directing smoke at smoke-sensitive or precision electronic parts.<\/p>\r\n<\/article>\r\n<article class=\"autool-product-card\">\r\n<h3>Inspect Hoses and Adapters<\/h3>\r\n<p>Do not operate with damaged power leads, hoses or adapters. Clean an opening before inserting an inflatable airbag so sharp edges do not puncture it.<\/p>\r\n<\/article>\r\n<article class=\"autool-product-card\">\r\n<h3>Use Approved Smoke Machine Fluid<\/h3>\r\n<p>Follow the model manual for fluid selection, fill level, draining and storage. Do not use water, viscous or corrosive liquids.<\/p>\r\n<\/article>\r\n<article class=\"autool-product-card\">\r\n<h3>Use the Test Result to Guide Inspection<\/h3>\r\n<p>Use the screen result, pressure behavior, and escaping smoke to guide inspection. If the result is unclear, recheck isolation and the test setup.<\/p>\r\n<\/article>\r\n<\/div>\r\n<\/div>\r\n<\/section>\r\n<section id=\"autool-results\" class=\"autool-section autool-product-section--white\" data-autool-surface=\"white\">\r\n<div class=\"autool-layout-container\"><header class=\"autool-section-head\">\r\n<p class=\"autool-subhead\">Test Results<\/p>\r\n<h2 class=\"autool-title\">Read PASS or ERR Within the Programmed Test Conditions<\/h2>\r\n<\/header>\r\n<div class=\"autool-product-grid autool-product-grid--3 autool-product-rail\" data-autool-rail=\"results\">\r\n<article class=\"autool-product-card\">\r\n<h3>Pressure Holds Within the Selected Threshold<\/h3>\r\n<p>The tested volume met the configured condition under this setup. Confirm that the threshold and procedure are correct before treating it as a pass.<\/p>\r\n<\/article>\r\n<article class=\"autool-product-card\">\r\n<h3>Pressure Drops or Exceeds the Threshold<\/h3>\r\n<p>Check the machine self-test, connection and intentional openings, then use smoke to inspect for an escape path.<\/p>\r\n<\/article>\r\n<article class=\"autool-product-card\">\r\n<h3>Smoke Escapes<\/h3>\r\n<p>Confirm the smoke is not leaving a normal open route, repair the verified leak and repeat the same test.<\/p>\r\n<\/article>\r\n<article class=\"autool-product-card\">\r\n<h3>No Smoke Is Visible<\/h3>\r\n<p>Recheck setup and isolation, then investigate valve control, blockage, intermittent behavior or a non-leak cause as the vehicle procedure directs.<\/p>\r\n<\/article>\r\n<\/div>\r\n<\/div>\r\n<\/section>\r\n<section id=\"autool-comparison\" class=\"autool-section autool-comparison\" data-autool-nav=\"Spec&amp;Comparison\" data-autool-surface=\"dark\">\r\n<div class=\"autool-layout-container\"><header class=\"autool-section-head\">\r\n<p class=\"autool-subhead\">Compare Models<\/p>\r\n<h2 class=\"autool-title\">Compare Displayed Hold Checks and Smoke Controls<\/h2>\r\n<\/header>\r\n<div class=\"autool-model-compare\" data-autool-model-compare=\"\" data-current-model=\"sml400\"><button class=\"autool-model-compare__mobile-trigger\" type=\"button\" aria-controls=\"compare47-04_sml400-compare-model-picker\" aria-expanded=\"false\" aria-label=\"Open model comparison selector\" data-compare-picker-open=\"\"><span class=\"autool-model-compare__mobile-trigger-copy\"><strong>Compare models<\/strong><span data-compare-mobile-summary=\"\">Selected: SML400<\/span><\/span><span class=\"autool-model-compare__mobile-trigger-count\" data-compare-mobile-count=\"\">1<\/span><\/button> <button class=\"autool-model-compare__scrim\" tabindex=\"-1\" type=\"button\" aria-label=\"Close model selector\" data-compare-picker-close=\"\"><\/button>\r\n<div id=\"compare47-04_sml400-compare-model-picker\" class=\"autool-model-compare__selector\" role=\"group\" aria-labelledby=\"compare47-04_sml400-compare-picker-title\">\r\n<div class=\"autool-model-compare__selector-head\">\r\n<div class=\"autool-model-compare__selector-copy\">\r\n<h3 id=\"compare47-04_sml400-compare-picker-title\" class=\"autool-model-compare__legend\">Model Guide<\/h3>\r\n<p class=\"autool-model-compare__instruction\">Choose one or more models. SML400 is selected by default.<\/p>\r\n<\/div>\r\n<div class=\"autool-model-compare__selector-tools\">\r\n<div class=\"autool-model-compare__count\" data-compare-count=\"\">1 model selected<\/div>\r\n<button class=\"autool-model-compare__picker-close\" type=\"button\" aria-label=\"Close model selector\" data-compare-picker-close=\"\">\u00d7<\/button><\/div>\r\n<\/div>\r\n<div class=\"autool-model-compare__grid\" role=\"list\" aria-label=\"Models available for comparison\"><label class=\"autool-model-option\" role=\"listitem\" data-model-card=\"sml310\"><input type=\"checkbox\" value=\"sml310\" data-model-checkbox=\"\" \/><span class=\"autool-model-option__copy\"><strong class=\"autool-model-option__model\">SML310<\/strong><span class=\"autool-model-option__tier\">Gauge \/ Air + smoke \/ Built-in pump<\/span><\/span><\/label><label class=\"autool-model-option\" role=\"listitem\" data-model-card=\"sml330\"><input type=\"checkbox\" value=\"sml330\" data-model-checkbox=\"\" \/><span class=\"autool-model-option__copy\"><strong class=\"autool-model-option__model\">SML330<\/strong><span class=\"autool-model-option__tier\">Flow control \/ Air + smoke \/ Built-in pump<\/span><\/span><\/label><label class=\"autool-model-option autool-is-selected\" role=\"listitem\" data-model-card=\"sml400\"><input checked=\"checked\" type=\"checkbox\" value=\"sml400\" data-model-checkbox=\"\" \/><span class=\"autool-model-option__copy\"><strong class=\"autool-model-option__model\">SML400<\/strong><span class=\"autool-model-option__tier\">TFT \/ Fixed pressure hold \/ Flow control<\/span><\/span><span class=\"autool-model-option__current\">Current model<\/span><\/label><label class=\"autool-model-option\" role=\"listitem\" data-model-card=\"sml500\"><input type=\"checkbox\" value=\"sml500\" data-model-checkbox=\"\" \/><span class=\"autool-model-option__copy\"><strong class=\"autool-model-option__model\">SML500<\/strong><span class=\"autool-model-option__tier\">Touchscreen \/ Configurable pressure hold<\/span><\/span><\/label><\/div>\r\n<div class=\"autool-model-compare__selection-bar\">\r\n<p id=\"compare47-04_sml400-compare-result-status\" class=\"autool-model-compare__status\" role=\"status\" aria-live=\"polite\" data-compare-status=\"\">SML400 is selected. Choose another model to compare.<\/p>\r\n<div class=\"autool-model-compare__selection-actions\"><button class=\"autool-model-compare__clear\" disabled=\"disabled\" type=\"button\" data-compare-clear=\"\">Reset selection<\/button><button class=\"autool-model-compare__done\" type=\"button\" data-compare-picker-close=\"\">Done<\/button><\/div>\r\n<\/div>\r\n<\/div>\r\n<div class=\"autool-model-compare__result\" data-compare-result=\"\">\r\n<div class=\"autool-model-compare__result-toolbar\">\r\n<h3 id=\"compare47-04_sml400-compare-result-title\" class=\"autool-model-compare__result-title\" data-compare-title=\"\">SML400 comparison<\/h3>\r\n<label class=\"autool-model-compare__difference-toggle\" aria-disabled=\"true\" data-differences-label=\"\"><input disabled=\"disabled\" type=\"checkbox\" data-differences-only=\"\" \/> Show differences only<\/label><\/div>\r\n<div data-compare-table=\"\">\r\n<div class=\"autool-compare-matrix__empty\" hidden=\"\">No model is selected. Choose a model to compare.<\/div>\r\n<div class=\"autool-compare-matrix-wrap\" tabindex=\"0\" role=\"region\" aria-describedby=\"compare47-04_sml400-compare-result-status\" aria-labelledby=\"compare47-04_sml400-compare-result-title\">\r\n<table class=\"autool-compare-matrix\" aria-label=\"Product comparison\" data-autool-columns=\"1\"><colgroup><col class=\"autool-compare-matrix__criteria-col\" \/><col class=\"autool-compare-matrix__model-col\" hidden=\"\" data-compare-model=\"sml310\" \/><col class=\"autool-compare-matrix__model-col\" hidden=\"\" data-compare-model=\"sml330\" \/><col class=\"autool-compare-matrix__model-col\" data-compare-model=\"sml400\" \/><col class=\"autool-compare-matrix__model-col\" hidden=\"\" data-compare-model=\"sml500\" \/><\/colgroup>\r\n<thead>\r\n<tr>\r\n<th scope=\"col\">Product Name<\/th>\r\n<th hidden=\"\" scope=\"col\" data-compare-model=\"sml310\">SML310<\/th>\r\n<th hidden=\"\" scope=\"col\" data-compare-model=\"sml330\">SML330<\/th>\r\n<th scope=\"col\" data-compare-model=\"sml400\">SML400<\/th>\r\n<th hidden=\"\" scope=\"col\" data-compare-model=\"sml500\">SML500<\/th>\r\n<\/tr>\r\n<\/thead>\r\n<tbody>\r\n<tr class=\"autool-compare-matrix__category\" data-compare-category=\"group47-1\">\r\n<th class=\"autool-compare-matrix__category-label\" scope=\"rowgroup\"><span class=\"autool-compare-matrix__category-label-inner\">Operating specifications<\/span><\/th>\r\n<td class=\"autool-compare-matrix__category-track\" colspan=\"1\" data-compare-category-track=\"\"><span class=\"autool-compare-matrix__category-progress\" aria-hidden=\"true\" data-autool-progress-order-ready=\"yes\" data-compare-category-progress=\"\"><span class=\"autool-compare-matrix__category-progress-label\">Slide \/ drag<\/span><span class=\"autool-compare-matrix__category-progress-count\" data-compare-category-count=\"\">1 \/ 1<\/span><\/span><\/td>\r\n<\/tr>\r\n<tr data-compare-group=\"group47-1\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Working Principle<\/th>\r\n<td hidden=\"\" data-compare-model=\"sml310\">\r\n<div class=\"autool-compare-matrix__value\">Low Oxygen Combustion<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml330\">\r\n<div class=\"autool-compare-matrix__value\">Low Oxygen Combustion<\/div>\r\n<\/td>\r\n<td data-compare-model=\"sml400\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml500\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<\/tr>\r\n<tr data-compare-group=\"group47-1\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Input Power<\/th>\r\n<td hidden=\"\" data-compare-model=\"sml310\">\r\n<div class=\"autool-compare-matrix__value\">DC 12V\/5A<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml330\">\r\n<div class=\"autool-compare-matrix__value\">DC 12V\/5A<\/div>\r\n<\/td>\r\n<td data-compare-model=\"sml400\">\r\n<div class=\"autool-compare-matrix__value\">DC 12V<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml500\">\r\n<div class=\"autool-compare-matrix__value\">Confirm the selected regional power configuration<\/div>\r\n<\/td>\r\n<\/tr>\r\n<tr data-compare-group=\"group47-1\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Test Oil Filling Volume<\/th>\r\n<td hidden=\"\" data-compare-model=\"sml310\">\r\n<div class=\"autool-compare-matrix__value\">10ml<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml330\">\r\n<div class=\"autool-compare-matrix__value\">10ml<\/div>\r\n<\/td>\r\n<td data-compare-model=\"sml400\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml500\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<\/tr>\r\n<tr data-compare-group=\"group47-1\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Rated Output Pressure<\/th>\r\n<td hidden=\"\" data-compare-model=\"sml310\">\r\n<div class=\"autool-compare-matrix__value\">\uff1c15psi<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml330\">\r\n<div class=\"autool-compare-matrix__value\">\uff1c15psi<\/div>\r\n<\/td>\r\n<td data-compare-model=\"sml400\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml500\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<\/tr>\r\n<tr data-compare-group=\"group47-1\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Rated Output Flow<\/th>\r\n<td hidden=\"\" data-compare-model=\"sml310\">\r\n<div class=\"autool-compare-matrix__value\">\uff1c6L\/min<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml330\">\r\n<div class=\"autool-compare-matrix__value\">\uff1c6L\/min<\/div>\r\n<\/td>\r\n<td data-compare-model=\"sml400\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml500\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<\/tr>\r\n<tr data-compare-group=\"group47-1\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Rated Power<\/th>\r\n<td hidden=\"\" data-compare-model=\"sml310\">\r\n<div class=\"autool-compare-matrix__value\">65W<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml330\">\r\n<div class=\"autool-compare-matrix__value\">65W<\/div>\r\n<\/td>\r\n<td data-compare-model=\"sml400\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml500\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<\/tr>\r\n<tr data-compare-group=\"group47-1\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">High-Temperature Protection<\/th>\r\n<td hidden=\"\" data-compare-model=\"sml310\">\r\n<div class=\"autool-compare-matrix__value\">Stops working above 75\u00b0C<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml330\">\r\n<div class=\"autool-compare-matrix__value\">Stops working above 75\u00b0C<\/div>\r\n<\/td>\r\n<td data-compare-model=\"sml400\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml500\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<\/tr>\r\n<tr data-compare-group=\"group47-1\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">LOW-Temperature Protection<\/th>\r\n<td hidden=\"\" data-compare-model=\"sml310\">\r\n<div class=\"autool-compare-matrix__value\">Confirm the operating-temperature limit for the selected unit.<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml330\">\r\n<div class=\"autool-compare-matrix__value\">Confirm the operating-temperature limit for the selected unit.<\/div>\r\n<\/td>\r\n<td data-compare-model=\"sml400\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml500\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<\/tr>\r\n<tr class=\"autool-compare-matrix__category\" data-compare-category=\"group47-2\">\r\n<th class=\"autool-compare-matrix__category-label\" scope=\"rowgroup\"><span class=\"autool-compare-matrix__category-label-inner\">Hardware and air supply<\/span><\/th>\r\n<td class=\"autool-compare-matrix__category-track\" colspan=\"1\" data-compare-category-track=\"\"><span class=\"autool-compare-matrix__category-progress\" aria-hidden=\"true\" data-autool-progress-order-ready=\"yes\" data-compare-category-progress=\"\"><span class=\"autool-compare-matrix__category-progress-label\">Slide \/ drag<\/span><span class=\"autool-compare-matrix__category-progress-count\" data-compare-category-count=\"\">1 \/ 1<\/span><\/span><\/td>\r\n<\/tr>\r\n<tr data-compare-group=\"group47-2\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Flow Meter Window<\/th>\r\n<td hidden=\"\" data-compare-model=\"sml310\">\r\n<div class=\"autool-compare-matrix__value\">\u00d7<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml330\">\r\n<div class=\"autool-compare-matrix__value\">\u00d7<\/div>\r\n<\/td>\r\n<td data-compare-model=\"sml400\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml500\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<\/tr>\r\n<tr data-compare-group=\"group47-2\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Net Weight (Main Unit)<\/th>\r\n<td hidden=\"\" data-compare-model=\"sml310\">\r\n<div class=\"autool-compare-matrix__value\">3.2kg<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml330\">\r\n<div class=\"autool-compare-matrix__value\">3.2kg<\/div>\r\n<\/td>\r\n<td data-compare-model=\"sml400\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml500\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<\/tr>\r\n<tr data-compare-group=\"group47-2\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Main Unit Dimensions<\/th>\r\n<td hidden=\"\" data-compare-model=\"sml310\">\r\n<div class=\"autool-compare-matrix__value\">250mm*160mm*165mm<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml330\">\r\n<div class=\"autool-compare-matrix__value\">250mm*160mm*165mm<\/div>\r\n<\/td>\r\n<td data-compare-model=\"sml400\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml500\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<\/tr>\r\n<tr data-compare-group=\"group47-2\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Pressure Gauge<\/th>\r\n<td hidden=\"\" data-compare-model=\"sml310\">\r\n<div class=\"autool-compare-matrix__value\">Gauge<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml330\">\r\n<div class=\"autool-compare-matrix__value\">Gauge<\/div>\r\n<\/td>\r\n<td data-compare-model=\"sml400\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml500\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<\/tr>\r\n<tr data-compare-group=\"group47-2\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Air Source Type<\/th>\r\n<td hidden=\"\" data-compare-model=\"sml310\">\r\n<div class=\"autool-compare-matrix__value\">Built-in pump<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml330\">\r\n<div class=\"autool-compare-matrix__value\">Built-in pump<\/div>\r\n<\/td>\r\n<td data-compare-model=\"sml400\">\r\n<div class=\"autool-compare-matrix__value\">Built-in pump<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml500\">\r\n<div class=\"autool-compare-matrix__value\">Confirm the selected unit&#8217;s required air connection<\/div>\r\n<\/td>\r\n<\/tr>\r\n<tr class=\"autool-compare-matrix__category\" data-compare-category=\"group47-3\">\r\n<th class=\"autool-compare-matrix__category-label\" scope=\"rowgroup\"><span class=\"autool-compare-matrix__category-label-inner\">Modes and controls<\/span><\/th>\r\n<td class=\"autool-compare-matrix__category-track\" colspan=\"1\" data-compare-category-track=\"\"><span class=\"autool-compare-matrix__category-progress\" aria-hidden=\"true\" data-autool-progress-order-ready=\"yes\" data-compare-category-progress=\"\"><span class=\"autool-compare-matrix__category-progress-label\">Slide \/ drag<\/span><span class=\"autool-compare-matrix__category-progress-count\" data-compare-category-count=\"\">1 \/ 1<\/span><\/span><\/td>\r\n<\/tr>\r\n<tr data-compare-group=\"group47-3\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Mode Output<\/th>\r\n<td hidden=\"\" data-compare-model=\"sml310\">\r\n<div class=\"autool-compare-matrix__value\">Air Mode\/Smoke Mode<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml330\">\r\n<div class=\"autool-compare-matrix__value\">Air Mode\/Smoke Mode<\/div>\r\n<\/td>\r\n<td data-compare-model=\"sml400\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml500\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<\/tr>\r\n<tr data-compare-group=\"group47-3\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Dual Pressure Mode<\/th>\r\n<td hidden=\"\" data-compare-model=\"sml310\">\r\n<div class=\"autool-compare-matrix__value\">\u00d7<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml330\">\r\n<div class=\"autool-compare-matrix__value\">\u00d7<\/div>\r\n<\/td>\r\n<td data-compare-model=\"sml400\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml500\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<\/tr>\r\n<tr data-compare-group=\"group47-3\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Flow Adjustment Knob<\/th>\r\n<td hidden=\"\" data-compare-model=\"sml310\">\r\n<div class=\"autool-compare-matrix__value\">\u00d7<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml330\">\r\n<div class=\"autool-compare-matrix__value\">\u221a<\/div>\r\n<\/td>\r\n<td data-compare-model=\"sml400\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml500\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<\/tr>\r\n<tr data-compare-group=\"group47-3\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Oil Drain Valve<\/th>\r\n<td hidden=\"\" data-compare-model=\"sml310\">\r\n<div class=\"autool-compare-matrix__value\">\u00d7<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml330\">\r\n<div class=\"autool-compare-matrix__value\">\u00d7<\/div>\r\n<\/td>\r\n<td data-compare-model=\"sml400\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml500\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<\/tr>\r\n<tr data-compare-group=\"group47-3\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Fault Indicator Light<\/th>\r\n<td hidden=\"\" data-compare-model=\"sml310\">\r\n<div class=\"autool-compare-matrix__value\">\u00d7<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml330\">\r\n<div class=\"autool-compare-matrix__value\">\u00d7<\/div>\r\n<\/td>\r\n<td data-compare-model=\"sml400\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml500\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<\/tr>\r\n<tr data-compare-group=\"group47-3\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Oil Level Gauge<\/th>\r\n<td hidden=\"\" data-compare-model=\"sml310\">\r\n<div class=\"autool-compare-matrix__value\">\u00d7<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml330\">\r\n<div class=\"autool-compare-matrix__value\">\u00d7<\/div>\r\n<\/td>\r\n<td data-compare-model=\"sml400\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml500\">\r\n<div class=\"autool-compare-matrix__value\">Not stated<\/div>\r\n<\/td>\r\n<\/tr>\r\n<tr class=\"autool-compare-matrix__category\" data-compare-category=\"group47-4\">\r\n<th class=\"autool-compare-matrix__category-label\" scope=\"rowgroup\"><span class=\"autool-compare-matrix__category-label-inner\">Setup &amp; Control<\/span><\/th>\r\n<td class=\"autool-compare-matrix__category-track\" colspan=\"1\" data-compare-category-track=\"\"><span class=\"autool-compare-matrix__category-progress\" aria-hidden=\"true\" data-autool-progress-order-ready=\"yes\" data-compare-category-progress=\"\"><span class=\"autool-compare-matrix__category-progress-label\">Slide \/ drag<\/span><span class=\"autool-compare-matrix__category-progress-count\" data-compare-category-count=\"\">1 \/ 1<\/span><\/span><\/td>\r\n<\/tr>\r\n<tr data-compare-group=\"group47-4\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Control level<\/th>\r\n<td hidden=\"\" data-compare-model=\"sml310\">\r\n<div class=\"autool-compare-matrix__value\">Gauge, Air\/Smoke<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml330\">\r\n<div class=\"autool-compare-matrix__value\">Gauge + flow adjustment, Air\/Smoke<\/div>\r\n<\/td>\r\n<td data-compare-model=\"sml400\">\r\n<div class=\"autool-compare-matrix__value\">TFT + fixed pressure-hold routine + flow controls<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"sml500\">\r\n<div class=\"autool-compare-matrix__value\">Touchscreen configurable pressure-hold and smoke workflow<\/div>\r\n<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/section>\r\n<section id=\"autool-download\" class=\"autool-section autool-product-section--cool autool-section--downloads\" data-autool-surface=\"cool\">\r\n<div class=\"autool-layout-container\"><header class=\"autool-section-head\">\r\n<p class=\"autool-subhead\">Manual &amp; Downloads<\/p>\r\n<h2 class=\"autool-title\">Use the Manual for Setup and Test Pressure<\/h2>\r\n<\/header>\r\n<div class=\"autool-product-rail autool-resources-grid autool-mobile-rail\" aria-label=\"AUTOOL SML400 manual download and setup support\" data-autool-rail=\"resources\">\r\n<article class=\"autool-resource-panel autool-resource-download\">\r\n<div class=\"autool-resource-media\" data-layout44-generated=\"downloads-cover\"><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/autoolstore.com\/wp-content\/uploads\/autool-manual-covers\/04_sml400-manual-guides-cover.svg\" alt=\"AUTOOL SML400 manual and setup guides cover\" width=\"720\" height=\"960\" data-layout44-generated=\"downloads-cover\" \/><\/div>\r\n<div class=\"autool-resource-body\"><span class=\"autool-resource-meta\">Manual \/ PDF<\/span>\r\n<h3>AUTOOL SML400 User Manual<\/h3>\r\n<p>Open the PDF manual for SML400 timed pressure-hold tests, TFT results, smoke tracing, pressure and flow adjustment, oil care, safety, and troubleshooting.<\/p>\r\n<div class=\"autool-resource-actions\"><a class=\"autool-product-button\" href=\"https:\/\/www.autooltech.com\/wp-content\/uploads\/2026\/08\/AUTOOL-SML400-Manual.pdf\" target=\"_blank\" rel=\"noopener\">Download Manual<\/a><\/div>\r\n<\/div>\r\n<\/article>\r\n<aside id=\"autool-support\" class=\"autool-resource-panel autool-section--support\">\r\n<div class=\"autool-resource-body\"><span class=\"autool-resource-meta\">Setup Help<\/span>\r\n<h3>Need Help Choosing the Right Setup?<\/h3>\r\n<p>Contact AUTOOL Store before ordering for help with manual versions, installation steps, compatibility, accessories, safe-use instructions, or after-sales support.<\/p>\r\n<div>Email<a href=\"mailto:support@autoolstore.com\">support@autoolstore.com<\/a><\/div>\r\n<div>WhatsApp<a href=\"https:\/\/wa.me\/8618926477404\" target=\"_blank\" rel=\"noopener\">+86 189 2647 7404<\/a><\/div>\r\n<div class=\"autool-resource-actions\"><a class=\"autool-product-button\" href=\"mailto:support@autoolstore.com\">EMAIL<\/a><a class=\"autool-product-button\" href=\"https:\/\/wa.me\/8618926477404\" target=\"_blank\" rel=\"noopener\">WHATSAPP<\/a><\/div>\r\n<\/div>\r\n<\/aside>\r\n<\/div>\r\n<\/div>\r\n<\/section>\r\n<section id=\"autool-box\" class=\"autool-section autool-product-section--warm autool-section--package\" data-autool-surface=\"warm\">\r\n<div class=\"autool-layout-container\">\r\n<div class=\"autool-package-layout\">\r\n<figure class=\"autool-package-media\"><img decoding=\"async\" src=\"https:\/\/www.autooltech.com\/wp-content\/uploads\/2026\/08\/AUTOOL-SML400-Automotive-Smoke-Leak-Detector-3.jpg\" alt=\"AUTOOL SML400 official package layout\" \/><\/figure>\r\n<div class=\"autool-package-copy\">\r\n<p class=\"autool-subhead\">Package<\/p>\r\n<h2 class=\"autool-title\">What\u2019s Included<\/h2>\r\n<ul class=\"autool-package-list autool-product-rail\" aria-label=\"AUTOOL SML400 package contents\" data-autool-rail=\"package\">\r\n<li>Power Cable<strong>1\u00d7 power cable for vehicle-battery connection.<\/strong><\/li>\r\n<li>Smoke Output Hose<strong>1\u00d7 smoke output hose.<\/strong><\/li>\r\n<li>Conical Adapters<strong>2\u00d7 conical adapters, listed as two separate one-piece entries.<\/strong><\/li>\r\n<li>Universal Airbag Adapters<strong>2\u00d7 universal airbag adapters for sealing suitable intake openings.<\/strong><\/li>\r\n<li>Valve Core Wrench<strong>1\u00d7 valve-core wrench.<\/strong><\/li>\r\n<li>EVAP Connector<strong>1\u00d7 connector for a compatible EVAP service port.<\/strong><\/li>\r\n<li>Oil Filling Bottle<strong>1\u00d7 graduated oil-filling bottle.<\/strong><\/li>\r\n<li>Universal Hard Rubber Plugs<strong>1 set for blocking suitable pipelines.<\/strong><\/li>\r\n<li>Red Cap Plugs<strong>1 set for sealing suitable hoses.<\/strong><\/li>\r\n<li>Universal Soft Rubber Plug<strong>1\u00d7 soft rubber plug for suitable small pipes.<\/strong><\/li>\r\n<li>BMW Oil-Cap Adapter<strong>1 set for a compatible BMW oil-filler connection.<\/strong><\/li>\r\n<li>User Manual<strong>1\u00d7 user manual.<\/strong><\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/section>\r\n<section id=\"autool-faq-description\" class=\"autool-section autool-product-section--white autool-section--faq\" data-autool-nav=\"FAQ\" data-autool-surface=\"white\">\r\n<div class=\"autool-layout-container\"><header class=\"autool-section-head\">\r\n<p class=\"autool-subhead\">FAQs<\/p>\r\n<h2 class=\"autool-title\">Hold Test, Display, and Smoke Questions<\/h2>\r\n<\/header>\r\n<div class=\"autool-faq-grid\"><details>\r\n<summary>What air source does SML400 use?<\/summary>\r\n<div class=\"autool-faq-answer\">\r\n<p>It has a built-in air pump powered from the machine&#8217;s 12 V connection.<\/p>\r\n<\/div>\r\n<\/details><details>\r\n<summary>Can I use the maximum pressure on an EVAP system?<\/summary>\r\n<div class=\"autool-faq-answer\">\r\n<p>Do not assume so. Choose pressure from the vehicle procedure; machine capacity and EVAP-safe pressure are different facts.<\/p>\r\n<\/div>\r\n<\/details><details>\r\n<summary>What does Air or Pressure-Hold mode tell me?<\/summary>\r\n<div class=\"autool-faq-answer\">\r\n<p>Use the displayed pressure behavior under the configured sealed setup to decide where further leak inspection is needed.<\/p>\r\n<\/div>\r\n<\/details><details>\r\n<summary>What does Smoke mode add?<\/summary>\r\n<div class=\"autool-faq-answer\">\r\n<p>Smoke gives a visible tracer for inspecting an escape path after the test volume is connected and isolated correctly.<\/p>\r\n<\/div>\r\n<\/details><details>\r\n<summary>What if no smoke is visible?<\/summary>\r\n<div class=\"autool-faq-answer\">\r\n<p>Verify smoke delivery, access, isolation, adapter sealing and valve state. Then continue with the applicable functional diagnosis because blockage, intermittent or non-leak faults may not produce visible smoke.<\/p>\r\n<\/div>\r\n<\/details><details>\r\n<summary>Are all pictured accessories included?<\/summary>\r\n<div class=\"autool-faq-answer\">\r\n<p>Use the listed package as the baseline and confirm every item and quantity for the selected version before purchase.<\/p>\r\n<\/div>\r\n<\/details><details>\r\n<summary>Does a visible leak guarantee the entire repair?<\/summary>\r\n<div class=\"autool-faq-answer\">\r\n<p>It identifies an area to inspect and confirm. Repair the verified problem and repeat the test, then complete any required vehicle checks.<\/p>\r\n<\/div>\r\n<\/details><\/div>\r\n<\/div>\r\n<\/section>\r\n<\/main><\/div>\r\n\r\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<ul>\n<li><strong>180-Second Pressure-Hold Test:<\/strong> Run the automatic three-minute hold routine and view its countdown and PASS or ERR result on the TFT display.<\/li>\n<li><strong>Smoke Leak Location:<\/strong> After the air or hold stage, use Smoke mode to inspect an indicated escape path.<\/li>\n<li><strong>Pressure + Flow Monitoring:<\/strong> View pressure and delivery on separate gauge and flow-meter indications while filling the test volume.<\/li>\n<li><strong>Adjustable Built-In Air:<\/strong> Use the internal 12 V pump and gradually adjust pressure and flow to the permitted procedure values.<\/li>\n<li><strong>Expanded Sealing Kit:<\/strong> Cone, inflatable-airbag, EVAP, plug, and BMW oil-cap adapters connect and seal different compatible openings.<\/li>\n<\/ul>\n","protected":false},"featured_media":80959,"comment_status":"open","ping_status":"closed","template":"","meta":{"_gspb_post_css":""},"product_brand":[448],"product_cat":[1095,1064,1097],"product_tag":[],"hf_cat_product":[4535,4536],"class_list":["post-80958","product","type-product","status-publish","has-post-thumbnail","product_brand-autool","product_cat-accessories","product_cat-smoke-leak-detector","product_cat-smoke-leak-detector-accessories","first","instock","shipping-taxable","purchasable","product-type-variable"],"meta_box":{"autool_archive_segment":"","autool_primary_use_case":"","autool_customer_focus":[],"autool_source_summary":"","autool_model_family":"","autool_voltage_options":"","autool_ship_from_options":"","autool_package_options":"","autool_accessory_options":"","autool_data_confidence":"","autool_manual_review_notes":""},"_links":{"self":[{"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/product\/80958","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/comments?post=80958"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/media\/80959"}],"wp:attachment":[{"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/media?parent=80958"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/product_brand?post=80958"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/product_cat?post=80958"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/product_tag?post=80958"},{"taxonomy":"hf_cat_product","embeddable":true,"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/hf_cat_product?post=80958"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}