{"id":63535,"date":"2026-01-26T10:15:05","date_gmt":"2026-01-26T10:15:05","guid":{"rendered":"https:\/\/autoolstore.com\/?post_type=product&#038;p=63535"},"modified":"2026-09-21T00:17:52","modified_gmt":"2026-09-21T08:17:52","slug":"autool-as509-coolant-boiling-pointtester","status":"publish","type":"product","link":"https:\/\/autoolstore.com\/product\/autool-as509-coolant-boiling-pointtester\/","title":{"rendered":"AUTOOL AS509 Automotive Coolant Boiling Point Tester"},"content":{"rendered":"\r\n<div class=\"autool-page-shell\"><main id=\"as509-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 AS509 \u00b7 Coolant Boiling-Point Tester<\/p>\r\n<h2 class=\"autool-product-hero__title\">Check Coolant Boiling Point Against the Right Reference<\/h2>\r\n<p class=\"autool-product-hero__lead\">Measure the boiling point of a prepared coolant sample and compare it with the applicable service reference. AS509 supports ethylene glycol, propylene glycol, and water coolants, with a general mode or built-in references for 23 listed brands. The OLED shows the result in approximately 20\u201340 seconds.<\/p>\r\n<ul class=\"autool-product-hero__capabilities\" aria-label=\"AS509 key benefits\">\r\n<li>Prepared-Sample Boiling Point<\/li>\r\n<li>Ethylene \/ Propylene Glycol \/ Water<\/li>\r\n<li>General \/ 23-Brand References<\/li>\r\n<li>About 20\u201340-Second Test<\/li>\r\n<li>External 12 V Power<\/li>\r\n<\/ul>\r\n<nav class=\"autool-product-hero__actions\" aria-label=\"AS509 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:\/\/autoolstore.com\/wp-content\/uploads\/2026\/01\/coolant-boiling-pointtester2.jpg\" alt=\"AUTOOL AS509 coolant boiling point tester overview and feature image\" \/><\/figure>\r\n<\/div>\r\n<\/section>\r\n<aside class=\"autool-product-metrics\" aria-label=\"AS509 at a glance\">\r\n<div class=\"autool-product-metrics__inner\">\r\n<div class=\"autool-product-metric\"><strong>\u00b13%<\/strong>Temperature Accuracy<\/div>\r\n<div class=\"autool-product-metric\"><strong>20\u201340 sec<\/strong>Test Time<\/div>\r\n<div class=\"autool-product-metric\"><strong>10\u201314 V<\/strong>Operating Voltage<\/div>\r\n<div class=\"autool-product-metric\"><strong>1.6 in<\/strong>OLED 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\">Coolant Boiling Point Tester with Normal and Brand Modes<\/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>High-Sensitivity Sensor<\/h3>\r\n<p>With temperature measurement accuracy of \u00b13%, AS509 tests coolant sample boiling point and tracks temperature changes during coolant condition checks.<\/p>\r\n<\/article>\r\n<article class=\"autool-product-card\">\r\n<h3>Dual Mode Selection<\/h3>\r\n<p>Normal Mode supports daily general tests across vehicle models and coolant types. Brand Mode uses built-in brand data to perform reference-based testing for more accurate judgment.<\/p>\r\n<\/article>\r\n<article class=\"autool-product-card\">\r\n<h3>Supports 23 Coolant Brands<\/h3>\r\n<p>Brand Mode covers ACDELCO, BASF, BOSCH, CASTROL, ENGINE_ICE, EVANS, FORD, HONDA, JOHN_DEERE, KUNLUN, MOBIL, MOPAR, NISSAN, OMTECH, PEAK, PRESTONE, RECOCHEM, SHELL, SKI-DOO, ZEREX, STAR_BRITE, TOTAL, and TOYOTA.<\/p>\r\n<\/article>\r\n<article class=\"autool-product-card\">\r\n<h3>Built-In Reference Values<\/h3>\r\n<p>Compare the measured boiling point with the selected built-in reference after confirming the coolant identity.<\/p>\r\n<\/article>\r\n<article class=\"autool-product-card\">\r\n<h3>1.6-Inch HD OLED Display<\/h3>\r\n<p>The self-illuminating OLED screen makes test results clear and intuitive, helping users read the result in bright light, dim workshops, or night-time conditions.<\/p>\r\n<\/article>\r\n<article class=\"autool-product-card\">\r\n<h3>Dual Safety Protection<\/h3>\r\n<p>Built-in reverse polarity protection and overheat protection help reduce operational errors, connection mistakes, and overheating risks during testing.<\/p>\r\n<\/article>\r\n<article class=\"autool-product-card\">\r\n<h3>Coolant Type Coverage<\/h3>\r\n<p>AS509 tests ethylene glycol, propylene glycol and water coolant types using an external 12V battery supply.<\/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\">Service Workflow<\/p>\r\n<h2 class=\"autool-title\">Connect, Sample, Heat and Compare<\/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=\"as509 workflow\" data-workflow-tabs=\"\"><button id=\"as509-tab-0\" class=\"autool-workflow__tab\" tabindex=\"0\" role=\"tab\" type=\"button\" aria-controls=\"as509-panel-0\" aria-selected=\"true\" data-workflow-step=\"0\">01<br \/><wbr \/>Draw<wbr \/> Coolant<wbr \/> Sample<\/button><button id=\"as509-tab-1\" class=\"autool-workflow__tab\" tabindex=\"-1\" role=\"tab\" type=\"button\" aria-controls=\"as509-panel-1\" aria-selected=\"false\" data-workflow-step=\"1\">02<br \/><wbr \/>Connect<wbr \/> 12V<wbr \/> Power<\/button><button id=\"as509-tab-2\" class=\"autool-workflow__tab\" tabindex=\"-1\" role=\"tab\" type=\"button\" aria-controls=\"as509-panel-2\" aria-selected=\"false\" data-workflow-step=\"2\">03<br \/><wbr \/>Insert<wbr \/> Test<wbr \/> Rod<\/button><button id=\"as509-tab-3\" class=\"autool-workflow__tab\" tabindex=\"-1\" role=\"tab\" type=\"button\" aria-controls=\"as509-panel-3\" aria-selected=\"false\" data-workflow-step=\"3\">04<br \/><wbr \/>Start<wbr \/> Test<\/button><button id=\"as509-tab-4\" class=\"autool-workflow__tab\" tabindex=\"-1\" role=\"tab\" type=\"button\" aria-controls=\"as509-panel-4\" aria-selected=\"false\" data-workflow-step=\"4\">05<br \/><wbr \/>Clamp-Powered<wbr \/> Sample<wbr \/> Test<\/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 \/ 5<\/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=\"as509-panel-0\" class=\"autool-workflow__panel\" tabindex=\"0\" role=\"tabpanel\" aria-labelledby=\"as509-tab-0\" data-workflow-panel=\"\">\r\n<div class=\"autool-workflow__number\">01<\/div>\r\n<h3 class=\"autool-workflow__title\">Draw Coolant Sample<\/h3>\r\n<p class=\"autool-workflow__description\">Use the sampler to draw 50ml of coolant from the vehicle reservoir, then inject the sample into the beaker.<\/p>\r\n<\/article>\r\n<article id=\"as509-panel-1\" class=\"autool-workflow__panel\" tabindex=\"0\" role=\"tabpanel\" hidden=\"\" aria-labelledby=\"as509-tab-1\" data-workflow-panel=\"\">\r\n<div class=\"autool-workflow__number\">02<\/div>\r\n<h3 class=\"autool-workflow__title\">Connect 12V Power<\/h3>\r\n<p class=\"autool-workflow__description\">Connect the AS509 to a 12V battery, turn on the tester, and select the coolant type or Brand Mode according to your test target.<\/p>\r\n<\/article>\r\n<article id=\"as509-panel-2\" class=\"autool-workflow__panel\" tabindex=\"0\" role=\"tabpanel\" hidden=\"\" aria-labelledby=\"as509-tab-2\" data-workflow-panel=\"\">\r\n<div class=\"autool-workflow__number\">03<\/div>\r\n<h3 class=\"autool-workflow__title\">Insert Test Rod<\/h3>\r\n<p class=\"autool-workflow__description\">Place the test rod into the beaker and make sure the sampling hole is fully submerged in the coolant sample.<\/p>\r\n<\/article>\r\n<article id=\"as509-panel-3\" class=\"autool-workflow__panel\" tabindex=\"0\" role=\"tabpanel\" hidden=\"\" aria-labelledby=\"as509-tab-3\" data-workflow-panel=\"\">\r\n<div class=\"autool-workflow__number\">04<\/div>\r\n<h3 class=\"autool-workflow__title\">Start Test<\/h3>\r\n<p class=\"autool-workflow__description\">Hold the \u201cS\u201d button, wait for the progress bar to complete, then read the boiling point result on the OLED display.<\/p>\r\n<\/article>\r\n<article id=\"as509-panel-4\" class=\"autool-workflow__panel\" tabindex=\"0\" role=\"tabpanel\" hidden=\"\" aria-labelledby=\"as509-tab-4\" data-workflow-panel=\"\">\r\n<div class=\"autool-workflow__number\">05<\/div>\r\n<h3 class=\"autool-workflow__title\">Clamp-Powered Sample Test<\/h3>\r\n<p class=\"autool-workflow__description\">Connect the power clamps to a 12V battery and immerse the test rod in the coolant sample. Use the screen and buttons to select the test mode and start measurement.<\/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>Use the listed coolant type, sample method and temperature conditions. An open-sample boiling result does not equal the protection temperature of a pressurized cooling system or report freeze point, pH or inhibitor reserve.<\/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\">Safe Use<\/p>\r\n<h2 class=\"autool-title\">Control Coolant Type, Heat and Sample Handling<\/h2>\r\n<\/header>\r\n<div class=\"autool-product-grid autool-product-grid--3 autool-product-rail\">\r\n<article class=\"autool-product-card\">\r\n<h3>Use the Boiling-Point Result<\/h3>\r\n<p>Use the listed coolant type, sample method and temperature conditions. The open-sample boiling result is not the protection temperature of a pressurized cooling system and does not report freeze point, pH or inhibitor reserve.<\/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\">Model Comparison<\/p>\r\n<h2 class=\"autool-title\">Choose the Right Fluid Test Method<\/h2>\r\n<\/header>\r\n<div class=\"autool-model-compare\" data-autool-model-compare=\"\" data-current-model=\"as509\"><button class=\"autool-model-compare__mobile-trigger\" type=\"button\" aria-controls=\"compare-source-10-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: AS509<\/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=\"compare-source-10-compare-model-picker\" class=\"autool-model-compare__selector\" role=\"group\" aria-labelledby=\"compare-source-10-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=\"compare-source-10-compare-picker-title\" class=\"autool-model-compare__legend\">Model Guide<\/h3>\r\n<p class=\"autool-model-compare__instruction\">Choose one or more models. AS509 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=\"as501\"><input type=\"checkbox\" value=\"as501\" data-model-checkbox=\"\" \/><span class=\"autool-model-option__copy\"><strong class=\"autool-model-option__model\">AS501 Brake Fluid Tester<\/strong><span class=\"autool-model-option__tier\">Brake-fluid moisture \/ 1.8-inch \/ 6 modes<\/span><\/span><\/label><label class=\"autool-model-option\" role=\"listitem\" data-model-card=\"as502\"><input type=\"checkbox\" value=\"as502\" data-model-checkbox=\"\" \/><span class=\"autool-model-option__copy\"><strong class=\"autool-model-option__model\">AS502 Brake Fluid Tester<\/strong><span class=\"autool-model-option__tier\">Brake-fluid moisture \/ 2.8-inch \/ Expert mode<\/span><\/span><\/label><label class=\"autool-model-option\" role=\"listitem\" data-model-card=\"as503\"><input type=\"checkbox\" value=\"as503\" data-model-checkbox=\"\" \/><span class=\"autool-model-option__copy\"><strong class=\"autool-model-option__model\">AS503 Engine Oil Quality Tester<\/strong><span class=\"autool-model-option__tier\">Engine-oil transmittance \/ 0\u201385 \u00b0C \/ 80 cm probe<\/span><\/span><\/label><label class=\"autool-model-option\" role=\"listitem\" data-model-card=\"as505\"><input type=\"checkbox\" value=\"as505\" data-model-checkbox=\"\" \/><span class=\"autool-model-option__copy\"><strong class=\"autool-model-option__model\">AS505 Transmission Fluid Tester<\/strong><span class=\"autool-model-option__tier\">ATF transmittance \/ 0\u201385 \u00b0C \/ 80 cm probe<\/span><\/span><\/label><label class=\"autool-model-option\" role=\"listitem\" data-model-card=\"as506\"><input type=\"checkbox\" value=\"as506\" data-model-checkbox=\"\" \/><span class=\"autool-model-option__copy\"><strong class=\"autool-model-option__model\">AS506 Brake Fluid Boiling Point Tester<\/strong><span class=\"autool-model-option__tier\">Brake-fluid boiling point \/ 0\u2013320 \u00b0C \/ 16 s<\/span><\/span><\/label><label class=\"autool-model-option\" role=\"listitem\" data-model-card=\"as507\"><input type=\"checkbox\" value=\"as507\" data-model-checkbox=\"\" \/><span class=\"autool-model-option__copy\"><strong class=\"autool-model-option__model\">AS507 Power Steering Fluid Tester<\/strong><span class=\"autool-model-option__tier\">Steering-fluid transmittance \/ 0\u201385 \u00b0C \/ 80 cm test cable<\/span><\/span><\/label><label class=\"autool-model-option autool-is-selected\" role=\"listitem\" data-model-card=\"as509\"><input checked=\"checked\" type=\"checkbox\" value=\"as509\" data-model-checkbox=\"\" \/><span class=\"autool-model-option__copy\"><strong class=\"autool-model-option__model\">AS509 Coolant Boiling Point Tester<\/strong><span class=\"autool-model-option__tier\">Coolant boiling point \/ 23 brands \/ 20\u201340 s<\/span><\/span><span class=\"autool-model-option__current\">Current model<\/span><\/label><\/div>\r\n<div class=\"autool-model-compare__selection-bar\">\r\n<p id=\"compare-source-10-compare-result-status\" class=\"autool-model-compare__status\" role=\"status\" aria-live=\"polite\" data-compare-status=\"\">AUTOOL AS509 Coolant Boiling Point Tester is selected. Choose another model for a side-by-side comparison.<\/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=\"compare-source-10-compare-result-title\" class=\"autool-model-compare__result-title\" data-compare-title=\"\">AS509 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=\"compare-source-10-compare-result-status\" aria-labelledby=\"compare-source-10-compare-result-title\">\r\n<table class=\"autool-compare-matrix\" data-autool-columns=\"1\"><caption class=\"autool-visually-hidden autool-table-caption--accessible\">Comparison of AUTOOL Automotive Oil &amp; Fluid Analyzers<\/caption><colgroup> <col class=\"autool-compare-matrix__criteria-col\" \/> <col class=\"autool-compare-matrix__model-col\" hidden=\"\" data-compare-model=\"as501\" \/> <col class=\"autool-compare-matrix__model-col\" hidden=\"\" data-compare-model=\"as502\" \/> <col class=\"autool-compare-matrix__model-col\" hidden=\"\" data-compare-model=\"as503\" \/> <col class=\"autool-compare-matrix__model-col\" hidden=\"\" data-compare-model=\"as505\" \/> <col class=\"autool-compare-matrix__model-col\" hidden=\"\" data-compare-model=\"as506\" \/> <col class=\"autool-compare-matrix__model-col\" hidden=\"\" data-compare-model=\"as507\" \/> <col class=\"autool-compare-matrix__model-col\" data-compare-model=\"as509\" \/> <\/colgroup>\r\n<thead>\r\n<tr>\r\n<th scope=\"col\">Product name<\/th>\r\n<th hidden=\"\" scope=\"col\" data-compare-model=\"as501\">AS501 Brake Fluid Tester<\/th>\r\n<th hidden=\"\" scope=\"col\" data-compare-model=\"as502\">AS502 Brake Fluid Tester<\/th>\r\n<th hidden=\"\" scope=\"col\" data-compare-model=\"as503\">AS503 Engine Oil Quality Tester<\/th>\r\n<th hidden=\"\" scope=\"col\" data-compare-model=\"as505\">AS505 Transmission Fluid Tester<\/th>\r\n<th hidden=\"\" scope=\"col\" data-compare-model=\"as506\">AS506 Brake Fluid Boiling Point Tester<\/th>\r\n<th hidden=\"\" scope=\"col\" data-compare-model=\"as507\">AS507 Power Steering Fluid Tester<\/th>\r\n<th scope=\"col\" data-compare-model=\"as509\">AS509 Coolant Boiling Point Tester<\/th>\r\n<\/tr>\r\n<\/thead>\r\n<tbody>\r\n<tr class=\"autool-compare-matrix__category\" data-compare-category=\"layout-group-1\">\r\n<th class=\"autool-compare-matrix__category-label\" scope=\"rowgroup\"><span class=\"autool-compare-matrix__category-label-inner\">Test Method &amp; Application<\/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=\"layout-group-1\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Detection Technology<\/th>\r\n<td hidden=\"\" data-compare-model=\"as501\">\r\n<div class=\"autool-compare-matrix__value\">Pressure Boost Detection Technology<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as502\">\r\n<div class=\"autool-compare-matrix__value\">Water-content screening; no hydraulic pressure generation or measurement<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as503\">\r\n<div class=\"autool-compare-matrix__value\">Optical Probe Technology<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as505\">\r\n<div class=\"autool-compare-matrix__value\">Optical Probe Technology<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as506\">\r\n<div class=\"autool-compare-matrix__value\">Sample Heating Technology<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as507\">\r\n<div class=\"autool-compare-matrix__value\">Optical Probe Technology<\/div>\r\n<\/td>\r\n<td data-compare-model=\"as509\">\r\n<div class=\"autool-compare-matrix__value\">Sample Heating Technology<\/div>\r\n<\/td>\r\n<\/tr>\r\n<tr data-compare-group=\"layout-group-1\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Operating Principle<\/th>\r\n<td hidden=\"\" data-compare-model=\"as501\">\r\n<div class=\"autool-compare-matrix__value\">Brake Fluid (Water Content)<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as502\">\r\n<div class=\"autool-compare-matrix__value\">Brake Fluid (Water Content)<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as503\">\r\n<div class=\"autool-compare-matrix__value\">Engine Oil (Transmittance)<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as505\">\r\n<div class=\"autool-compare-matrix__value\">Transmission Fluid(Transmittance)<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as506\">\r\n<div class=\"autool-compare-matrix__value\">Brake Fluid (Boiling Point)<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as507\">\r\n<div class=\"autool-compare-matrix__value\">Steering Fluid (Transmittance)<\/div>\r\n<\/td>\r\n<td data-compare-model=\"as509\">\r\n<div class=\"autool-compare-matrix__value\">Coolant<\/div>\r\n<\/td>\r\n<\/tr>\r\n<tr data-compare-group=\"layout-group-1\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Test Mode Selection<\/th>\r\n<td hidden=\"\" data-compare-model=\"as501\">\r\n<div class=\"autool-compare-matrix__value\">Normal Mode<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as502\">\r\n<div class=\"autool-compare-matrix__value\">Normal Mode\/Expert Mode<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as503\">\r\n<div class=\"autool-compare-matrix__value\">Gasoline Engine\/Diesel Engine<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as505\">\r\n<div class=\"autool-compare-matrix__value\">Automotive Transmission Fluid<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as506\">\r\n<div class=\"autool-compare-matrix__value\">Normal Mode\/Brand Mode<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as507\">\r\n<div class=\"autool-compare-matrix__value\">Automotive Steering Gear<\/div>\r\n<\/td>\r\n<td data-compare-model=\"as509\">\r\n<div class=\"autool-compare-matrix__value\">Normal Mode\/Brand Mode<\/div>\r\n<\/td>\r\n<\/tr>\r\n<tr data-compare-group=\"layout-group-1\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Boiling Point Reference Value<\/th>\r\n<td hidden=\"\" data-compare-model=\"as501\">\r\n<div class=\"autool-compare-matrix__value\"><span class=\"autool-compare-matrix__mark\" role=\"img\" aria-label=\"No\" data-autool-state=\"no\" data-layout43-marker=\"\">\u00d7<\/span><\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as502\">\r\n<div class=\"autool-compare-matrix__value\"><span class=\"autool-compare-matrix__mark\" role=\"img\" aria-label=\"No\" data-autool-state=\"no\" data-layout43-marker=\"\">\u00d7<\/span><\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as503\">\r\n<div class=\"autool-compare-matrix__value\"><span class=\"autool-compare-matrix__mark\" role=\"img\" aria-label=\"No\" data-autool-state=\"no\" data-layout43-marker=\"\">\u00d7<\/span><\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as505\">\r\n<div class=\"autool-compare-matrix__value\"><span class=\"autool-compare-matrix__mark\" role=\"img\" aria-label=\"No\" data-autool-state=\"no\" data-layout43-marker=\"\">\u00d7<\/span><\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as506\">\r\n<div class=\"autool-compare-matrix__value\"><span class=\"autool-compare-matrix__mark\" role=\"img\" aria-label=\"Yes\" data-autool-state=\"yes\" data-layout43-marker=\"\">\u2713<\/span><\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as507\">\r\n<div class=\"autool-compare-matrix__value\"><span class=\"autool-compare-matrix__mark\" role=\"img\" aria-label=\"No\" data-autool-state=\"no\" data-layout43-marker=\"\">\u00d7<\/span><\/div>\r\n<\/td>\r\n<td data-compare-model=\"as509\">\r\n<div class=\"autool-compare-matrix__value\"><span class=\"autool-compare-matrix__mark\" role=\"img\" aria-label=\"Yes\" data-autool-state=\"yes\" data-layout43-marker=\"\">\u2713<\/span><\/div>\r\n<\/td>\r\n<\/tr>\r\n<tr data-compare-group=\"layout-group-1\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Normal Mode<\/th>\r\n<td hidden=\"\" data-compare-model=\"as501\">\r\n<div class=\"autool-compare-matrix__value\">6 Types<br \/>ENV-4\u3001ENV-6<br \/>DOT3\u3001DOT4\u3001DOT5\u3001DOT5.1<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as502\">\r\n<div class=\"autool-compare-matrix__value\">3 Types<br \/>DOT3\u3001DOT4\u3001DOT5.1<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as503\">\r\n<div class=\"autool-compare-matrix__value\"><span class=\"autool-compare-matrix__mark\" role=\"img\" aria-label=\"No\" data-autool-state=\"no\" data-layout43-marker=\"\">\u00d7<\/span><\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as505\">\r\n<div class=\"autool-compare-matrix__value\"><span class=\"autool-compare-matrix__mark\" role=\"img\" aria-label=\"No\" data-autool-state=\"no\" data-layout43-marker=\"\">\u00d7<\/span><\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as506\">\r\n<div class=\"autool-compare-matrix__value\">DOT3, DOT4 and DOT5.1 (procedure-confirmed selections)<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as507\">\r\n<div class=\"autool-compare-matrix__value\"><span class=\"autool-compare-matrix__mark\" role=\"img\" aria-label=\"No\" data-autool-state=\"no\" data-layout43-marker=\"\">\u00d7<\/span><\/div>\r\n<\/td>\r\n<td data-compare-model=\"as509\">\r\n<div class=\"autool-compare-matrix__value\">23 Coolant Brands<br \/>For ACDELCO\u3001BASF\u3001BOSCH\u3001CASTROL\u3001ENGINE_ICE\u3001EVANS\u3001FORD\u3001HONDA\u3001JOHN_DEERE\u3001KUNLUN\u3001MOBIL\u3001MOPAR\u3001NISSAN\u3001OMTECH\u3001PEAK\u3001PRESTONE\u3001RECOCHEM\u3001SHELL\u3001SKI-DOO\u3001ZEREX\u3001STAR_BRITE\u3001TOTAL\u3001TOYOTA<\/div>\r\n<\/td>\r\n<\/tr>\r\n<tr class=\"autool-compare-matrix__category\" data-compare-category=\"layout-group-2\">\r\n<th class=\"autool-compare-matrix__category-label\" scope=\"rowgroup\"><span class=\"autool-compare-matrix__category-label-inner\">Measurement &amp; Response<\/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=\"layout-group-2\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Temperature Unit Switching<\/th>\r\n<td hidden=\"\" data-compare-model=\"as501\">\r\n<div class=\"autool-compare-matrix__value\"><span class=\"autool-compare-matrix__mark\" role=\"img\" aria-label=\"No\" data-autool-state=\"no\" data-layout43-marker=\"\">\u00d7<\/span><\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as502\">\r\n<div class=\"autool-compare-matrix__value\"><span class=\"autool-compare-matrix__mark\" role=\"img\" aria-label=\"No\" data-autool-state=\"no\" data-layout43-marker=\"\">\u00d7<\/span><\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as503\">\r\n<div class=\"autool-compare-matrix__value\">\u2103\/\u2109<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as505\">\r\n<div class=\"autool-compare-matrix__value\">\u2103\/\u2109<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as506\">\r\n<div class=\"autool-compare-matrix__value\">\u2103\/\u2109<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as507\">\r\n<div class=\"autool-compare-matrix__value\">\u2103\/\u2109<\/div>\r\n<\/td>\r\n<td data-compare-model=\"as509\">\r\n<div class=\"autool-compare-matrix__value\">\u2103\/\u2109<\/div>\r\n<\/td>\r\n<\/tr>\r\n<tr data-compare-group=\"layout-group-2\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Temperature Measurement Range<\/th>\r\n<td hidden=\"\" data-compare-model=\"as501\">\r\n<div class=\"autool-compare-matrix__value\"><span class=\"autool-compare-matrix__mark\" role=\"img\" aria-label=\"No\" data-autool-state=\"no\" data-layout43-marker=\"\">\u00d7<\/span><\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as502\">\r\n<div class=\"autool-compare-matrix__value\"><span class=\"autool-compare-matrix__mark\" role=\"img\" aria-label=\"No\" data-autool-state=\"no\" data-layout43-marker=\"\">\u00d7<\/span><\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as503\">\r\n<div class=\"autool-compare-matrix__value\">0-85\u2103<br \/>0-185\u2109<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as505\">\r\n<div class=\"autool-compare-matrix__value\">0-85\u2103<br \/>0-185\u2109<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as506\">\r\n<div class=\"autool-compare-matrix__value\">0-320\u2103<br \/>0-608\u2109<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as507\">\r\n<div class=\"autool-compare-matrix__value\">0-85\u2103<br \/>0-185\u2109<\/div>\r\n<\/td>\r\n<td data-compare-model=\"as509\">\r\n<div class=\"autool-compare-matrix__value\">Diluted Coolant Boiling Point Range\uff1a<br \/>100\u00b0C~120\u00b0C(212\u00b0F~248\u00b0F)<br \/><br \/>Original Manufacturer Coolant Boiling Point Reference Range<br \/>106\u00b0C~191\u00b0C(221\u00b0F~376\u00b0F)<\/div>\r\n<\/td>\r\n<\/tr>\r\n<tr data-compare-group=\"layout-group-2\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Test Duration<\/th>\r\n<td hidden=\"\" data-compare-model=\"as501\">\r\n<div class=\"autool-compare-matrix__value\">10s Response<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as502\">\r\n<div class=\"autool-compare-matrix__value\">10s Response<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as503\">\r\n<div class=\"autool-compare-matrix__value\">10s Response<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as505\">\r\n<div class=\"autool-compare-matrix__value\">10s Response<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as506\">\r\n<div class=\"autool-compare-matrix__value\">16s Response<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as507\">\r\n<div class=\"autool-compare-matrix__value\">10s Response<\/div>\r\n<\/td>\r\n<td data-compare-model=\"as509\">\r\n<div class=\"autool-compare-matrix__value\">20~40s Response<\/div>\r\n<\/td>\r\n<\/tr>\r\n<tr class=\"autool-compare-matrix__category\" data-compare-category=\"layout-group-3\">\r\n<th class=\"autool-compare-matrix__category-label\" scope=\"rowgroup\"><span class=\"autool-compare-matrix__category-label-inner\">Display, Probe &amp; Power<\/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=\"layout-group-3\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Backlit Display Screen<\/th>\r\n<td hidden=\"\" data-compare-model=\"as501\">\r\n<div class=\"autool-compare-matrix__value\">1.8-inch<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as502\">\r\n<div class=\"autool-compare-matrix__value\">2.8-inch<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as503\">\r\n<div class=\"autool-compare-matrix__value\">2.8-inch<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as505\">\r\n<div class=\"autool-compare-matrix__value\">2.8-inch<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as506\">\r\n<div class=\"autool-compare-matrix__value\">1.54-inch<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as507\">\r\n<div class=\"autool-compare-matrix__value\">2.8-inch<\/div>\r\n<\/td>\r\n<td data-compare-model=\"as509\">\r\n<div class=\"autool-compare-matrix__value\">1.6-inch<\/div>\r\n<\/td>\r\n<\/tr>\r\n<tr data-compare-group=\"layout-group-3\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Test Cable Length<\/th>\r\n<td hidden=\"\" data-compare-model=\"as501\">\r\n<div class=\"autool-compare-matrix__value\">26cm<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as502\">\r\n<div class=\"autool-compare-matrix__value\">26cm<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as503\">\r\n<div class=\"autool-compare-matrix__value\">80cm<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as505\">\r\n<div class=\"autool-compare-matrix__value\">80cm<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as506\">\r\n<div class=\"autool-compare-matrix__value\">4cm<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as507\">\r\n<div class=\"autool-compare-matrix__value\">80cm<\/div>\r\n<\/td>\r\n<td data-compare-model=\"as509\">\r\n<div class=\"autool-compare-matrix__value\">130cm<\/div>\r\n<\/td>\r\n<\/tr>\r\n<tr data-compare-group=\"layout-group-3\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Power Supply Voltage<\/th>\r\n<td hidden=\"\" data-compare-model=\"as501\">\r\n<div class=\"autool-compare-matrix__value\">3V<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as502\">\r\n<div class=\"autool-compare-matrix__value\">6V<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as503\">\r\n<div class=\"autool-compare-matrix__value\">6V<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as505\">\r\n<div class=\"autool-compare-matrix__value\">6V<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as506\">\r\n<div class=\"autool-compare-matrix__value\">12V<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as507\">\r\n<div class=\"autool-compare-matrix__value\">6V<\/div>\r\n<\/td>\r\n<td data-compare-model=\"as509\">\r\n<div class=\"autool-compare-matrix__value\">10-14V<\/div>\r\n<\/td>\r\n<\/tr>\r\n<tr data-compare-group=\"layout-group-3\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Hose Material<\/th>\r\n<td hidden=\"\" data-compare-model=\"as501\">\r\n<div class=\"autool-compare-matrix__value\">Iron Oxide<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as502\">\r\n<div class=\"autool-compare-matrix__value\">304 Stainless Steel<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as503\">\r\n<div class=\"autool-compare-matrix__value\">Teflon<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as505\">\r\n<div class=\"autool-compare-matrix__value\">Teflon<\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as506\">\r\n<div class=\"autool-compare-matrix__value\"><span class=\"autool-compare-matrix__mark\" role=\"img\" aria-label=\"No\" data-autool-state=\"no\" data-layout43-marker=\"\">\u00d7<\/span><\/div>\r\n<\/td>\r\n<td hidden=\"\" data-compare-model=\"as507\">\r\n<div class=\"autool-compare-matrix__value\">Teflon<\/div>\r\n<\/td>\r\n<td data-compare-model=\"as509\">\r\n<div class=\"autool-compare-matrix__value\"><span class=\"autool-compare-matrix__mark\" role=\"img\" aria-label=\"No\" data-autool-state=\"no\" data-layout43-marker=\"\">\u00d7<\/span><\/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; Support<\/p>\r\n<h2 class=\"autool-title\">Find the Manual and Fluid-Test Guidance<\/h2>\r\n<\/header>\r\n<div class=\"autool-product-rail autool-resources-grid autool-mobile-rail\" aria-label=\"AS509 manual download and setup support\" data-autool-rail=\"resources\">\r\n<article class=\"autool-resource-download autool-resource-panel\">\r\n<div class=\"autool-resource-media\"><img decoding=\"async\" src=\"https:\/\/autoolstore.com\/wp-content\/uploads\/2026\/01\/073a60bc-478a-41ae-a4a1-c78ca9f07afd.png\" alt=\"AUTOOL AS509 EN-DE user manual preview\" \/><\/div>\r\n<div class=\"autool-resource-body\"><span class=\"autool-resource-meta\">Manual \/ PDF<\/span>\r\n<h3>AUTOOL AS509 User Manual<\/h3>\r\n<p>Open the PDF manual for AUTOOL AS509 coolant type selection, sensor testing, built-in reference values, result interpretation, dual safety protection and troubleshooting support.<\/p>\r\n<div class=\"autool-resource-actions\"><a class=\"autool-product-button\" href=\"https:\/\/autoolstore.com\/wp-content\/uploads\/2026\/01\/AUTOOL-AS509-EN-DE-Manual-20251217.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:\/\/autoolstore.com\/wp-content\/uploads\/2026\/01\/coolant-boiling-pointtester14.jpg\" alt=\"AUTOOL AS509 packing list and package contents\" \/><\/figure>\r\n<div class=\"autool-package-copy\">\r\n<p class=\"autool-subhead\">Package Contents<\/p>\r\n<h2 class=\"autool-title\">See What Comes in the Box<\/h2>\r\n<ul class=\"autool-package-list autool-product-rail\" aria-label=\"AS509 package contents\" data-autool-rail=\"package\">\r\n<li>Main Unit<strong>AUTOOL AS509 Coolant Boiling Point Tester<\/strong><\/li>\r\n<li>Carrying Case<strong>Protective storage case<\/strong><\/li>\r\n<li>Sampling Tools<strong>Beaker, syringe, and tube<\/strong><\/li>\r\n<li>Item<strong>Power 12V battery clamps and power cable<\/strong><\/li>\r\n<li>Documentation<strong>User manual<\/strong><\/li>\r\n<li>Package<strong>Retail box<\/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\">Buyer Questions<\/p>\r\n<h2 class=\"autool-title\">Fluid Fit, Method and Result Questions<\/h2>\r\n<\/header>\r\n<div class=\"autool-faq-grid\"><details>\r\n<summary>What Coolant Types Can AS509 Test?<\/summary>\r\n<div class=\"autool-faq-answer\">\r\n<p>AS509 is compatible with Ethylene Glycol, Propylene Glycol, and Water coolant types. It is designed to measure coolant boiling point and provide one input for the applicable coolant and vehicle service decision.<\/p>\r\n<\/div>\r\n<\/details><details>\r\n<summary>What Is The Difference Between Normal Mode And Brand Mode?<\/summary>\r\n<div class=\"autool-faq-answer\">\r\n<p>Normal Mode is for daily general testing and can directly measure the actual boiling point of coolant across vehicle models and coolant types. Brand Mode uses built-in data for 23 popular coolant brands and compares results with brand reference values for more accurate judgment.<\/p>\r\n<\/div>\r\n<\/details><details>\r\n<summary>How Much Coolant Sample Is Needed?<\/summary>\r\n<div class=\"autool-faq-answer\">\r\n<p>Use a sampler to draw 50ml of coolant from the vehicle reservoir, then inject it into the beaker for testing.<\/p>\r\n<\/div>\r\n<\/details><details>\r\n<summary>Does AS509 Need A 12V Battery?<\/summary>\r\n<div class=\"autool-faq-answer\">\r\n<p>Yes. AS509 uses 12V external battery power through power clamps. Its operating voltage range is 10-14V.<\/p>\r\n<\/div>\r\n<\/details><details>\r\n<summary>What Brands Are Supported In Brand Mode?<\/summary>\r\n<div class=\"autool-faq-answer\">\r\n<p>Brand Mode supports ACDELCO, BASF, BOSCH, CASTROL, ENGINE_ICE, EVANS, FORD, HONDA, JOHN_DEERE, KUNLUN, MOBIL, MOPAR, NISSAN, OMTECH, PEAK, PRESTONE, RECOCHEM, SHELL, SKI-DOO, ZEREX, STAR_BRITE, TOTAL, and TOYOTA.<\/p>\r\n<\/div>\r\n<\/details><details>\r\n<summary>What Does The Boiling Point Reference Value Mean?<\/summary>\r\n<div class=\"autool-faq-answer\">\r\n<p>After confirming coolant identity, compare the measured boiling point with the built-in reference and the vehicle service criteria to plan the next step.<\/p>\r\n<\/div>\r\n<\/details><details>\r\n<summary>How Long Does One Test Take?<\/summary>\r\n<div class=\"autool-faq-answer\">\r\n<p>The AS509 testing time is approximately 20-40 seconds, depending on the test condition and coolant sample.<\/p>\r\n<\/div>\r\n<\/details><details>\r\n<summary>What Safety Protection Does AS509 Include?<\/summary>\r\n<div class=\"autool-faq-answer\">\r\n<p>AS509 includes reverse polarity protection and overheat protection to reduce operational error and overheating risks during coolant boiling point testing.<\/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>Coolant Boiling-Point Test:<\/strong> Measure the boiling point of a prepared coolant sample for comparison with the applicable service reference.<\/li>\n<li><strong>Ethylene \/ Propylene Glycol + Water:<\/strong> Test ethylene glycol, propylene glycol, or water coolant using the external 12 V supply.<\/li>\n<li><strong>Normal + 23-Brand Modes:<\/strong> Choose general testing or compare the result with built-in references for 23 coolant brands.<\/li>\n<li><strong>20\u201340 Second Results:<\/strong> View the test result in approximately 20\u201340 seconds.<\/li>\n<li><strong>1.6-Inch OLED:<\/strong> Read results on the self-illuminating OLED in bright or dim service areas.<\/li>\n<\/ul>\n","protected":false},"featured_media":73096,"comment_status":"open","ping_status":"closed","template":"","meta":{"_gspb_post_css":""},"product_brand":[448],"product_cat":[1063,1068],"product_tag":[956,940,939],"hf_cat_product":[4540],"class_list":["post-63535","product","type-product","status-publish","has-post-thumbnail","product_brand-autool","product_cat-automotive-repair-testing-equipment","product_cat-oil-analysis-tester","product_tag-fluid-testing","product_tag-measurement-tools","product_tag-multi-warehouse-shipping","first","instock","shipping-taxable","purchasable","product-type-variable"],"meta_box":{"autool_archive_segment":"Pressure testing","autool_primary_use_case":"Pressure testing for engine, fuel, air or cooling systems","autool_customer_focus":["measurement accuracy","warehouse \/ delivery location"],"autool_source_summary":"- Pressure Checks Made Clear: Built for targeted pressure diagnosis in fuel, oil, cooling, or air systems where confirmation matters before repair. - Decision Points Up Front: The short description is structured to surfa","autool_model_family":"AS509","autool_voltage_options":"","autool_ship_from_options":"Germany\u3001United States\u3001United Kingdom\u3001China","autool_package_options":"","autool_accessory_options":"","autool_data_confidence":"site-content-derived","autool_manual_review_notes":""},"_links":{"self":[{"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/product\/63535","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=63535"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/media\/73096"}],"wp:attachment":[{"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/media?parent=63535"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/product_brand?post=63535"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/product_cat?post=63535"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/product_tag?post=63535"},{"taxonomy":"hf_cat_product","embeddable":true,"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/hf_cat_product?post=63535"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}