{"id":3210,"date":"2026-09-29T05:43:42","date_gmt":"2026-09-29T05:43:42","guid":{"rendered":"https:\/\/shop.autoboss.com\/?post_type=product&#038;p=3210"},"modified":"2026-10-09T08:20:31","modified_gmt":"2026-10-09T08:20:31","slug":"autool-as509-coolant-boiling-point-tester","status":"publish","type":"product","link":"https:\/\/autoboss.com\/de\/product\/autool-as509-coolant-boiling-point-tester\/","title":{"rendered":"AUTOOL AS509 Coolant Boiling Point Tester with 23 Brand Reference Modes"},"content":{"rendered":"<div class=\"abd-pd\" data-abd-version=\"1\">\n<header class=\"abd-hero\">\n<h3>Check Coolant Boiling Point Against the Right Reference<\/h3>\n<p class=\"abd-lead\">The AS509 heats a 50 ml coolant sample and shows its boiling point on an OLED screen, either as a general reading or against built-in references for 23 coolant brands. It is powered from a 12 V vehicle battery through clamps.<\/p>\n<ul class=\"abd-facts\">\n<li>23 Brand Reference Modes<\/li>\n<li>20\u201340 s Test<\/li>\n<li>\u00b13% Temperature Accuracy<\/li>\n<li>12 V Battery Powered<\/li>\n<\/ul>\n<\/header>\n<section class=\"abd-sec\" id=\"abd-features\">\n<h4>Hauptmerkmale<\/h4>\n<ol class=\"abd-features\">\n<li>\n<h5>Normal and Brand Modes<\/h5>\n<p>Normal Mode measures the actual boiling point for everyday checks across vehicles and coolant types; Brand Mode compares the result with built-in brand reference values.<\/p>\n<\/li>\n<li>\n<h5>23 Coolant Brands<\/h5>\n<p>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>\n<\/li>\n<li>\n<h5>Three Coolant Types<\/h5>\n<p>Tests ethylene glycol, propylene glycol and water-based coolant.<\/p>\n<\/li>\n<li>\n<h5>Readable OLED Screen<\/h5>\n<p>The self-illuminating display stays clear in bright light, dim workshops or at night.<\/p>\n<\/li>\n<li>\n<h5>Dual Safety Protection<\/h5>\n<p>Reverse polarity and overheat protection reduce connection mistakes and overheating risk.<\/p>\n<\/li>\n<\/ol>\n<\/section>\n<section class=\"abd-sec\" id=\"abd-specs\">\n<h4>More Specifications<\/h4>\n<div class=\"abd-table-wrap\">\n<table class=\"abd-table abd-specs\">\n<tbody>\n<tr>\n<th scope=\"row\">Sample volume<\/th>\n<td>50 ml<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Temperature units<\/th>\n<td>\u00b0C \/ \u00b0F<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Detection method<\/th>\n<td>Sample heating<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n<section class=\"abd-sec\" id=\"abd-box\">\n<h4>What&#8217;s in the Box<\/h4>\n<ul class=\"abd-box\">\n<li>AS509 coolant boiling point tester<\/li>\n<li>Carrying case<\/li>\n<li>Beakers, syringe and tube<\/li>\n<li>12 V battery clamps and power cable<\/li>\n<li>Bedienungsanleitung<\/li>\n<li>Retail box<\/li>\n<\/ul>\n<figure class=\"abd-fig\"><img decoding=\"async\" src=\"https:\/\/autoboss.com\/wp-content\/uploads\/autool-catalog\/media\/a0cc249823c7518b118d4caa.webp\" alt=\"AUTOOL AS509 tester with battery clamps, carrying case, beakers, syringe and tube, retail box and user manual\" width=\"1200\" height=\"1200\" loading=\"lazy\"><figcaption>Package contents as shown by the manufacturer.<\/figcaption><\/figure>\n<\/section>\n<section class=\"abd-sec\" id=\"abd-use\">\n<h4>Anwendung<\/h4>\n<ol class=\"abd-steps\">\n<li><b>Draw a sample<\/b><span>Use the syringe to draw 50 ml of coolant from the reservoir and inject it into the beaker.<\/span><\/li>\n<li><b>Connect 12 V power<\/b><span>Clamp the tester to a 12 V battery, switch on and select the coolant type or Brand Mode.<\/span><\/li>\n<li><b>Insert the test rod<\/b><span>Place the rod in the beaker with the sampling hole fully submerged.<\/span><\/li>\n<li><b>Start the test<\/b><span>Hold the \u201cS\u201d button, wait for the progress bar and read the boiling point on the display.<\/span><\/li>\n<\/ol>\n<p class=\"abd-note\">Coolant selection, reference values and troubleshooting: <a href=\"https:\/\/autoboss.com\/wp-content\/uploads\/autool-catalog\/media\/2e5096ebb6c354cc936cbbc1.pdf\" target=\"_blank\" rel=\"noopener\">AS509 user manual (PDF)<\/a>.<\/p>\n<\/section>\n<section class=\"abd-sec\" id=\"abd-notes\">\n<h4>Good to Know<\/h4>\n<div class=\"abd-notes\">\n<div class=\"abd-note-group is-care\">\n<h5><span class=\"abd-tag\">Care<\/span><\/h5>\n<ul>\n<li>An open-sample boiling point is not the protection temperature of a pressurized cooling system, and the AS509 does not report freeze point, pH or inhibitor reserve.<\/li>\n<li>Confirm the coolant identity before comparing with a brand reference.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/section>\n<\/div>","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>","protected":false},"featured_media":12250,"comment_status":"open","ping_status":"closed","template":"","meta":{"_gspb_post_css":""},"product_brand":[128],"product_cat":[62,99],"product_tag":[],"class_list":["post-3210","product","type-product","status-publish","has-post-thumbnail","product_brand-autool","product_cat-best-selling-products","product_cat-fluid-testers","first","instock","shipping-taxable","purchasable","product-type-variable"],"_links":{"self":[{"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/product\/3210","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/comments?post=3210"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/media\/12250"}],"wp:attachment":[{"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/media?parent=3210"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/product_brand?post=3210"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/product_cat?post=3210"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/product_tag?post=3210"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}