{"id":43286,"date":"2024-04-03T17:10:08","date_gmt":"2024-04-03T09:10:08","guid":{"rendered":"https:\/\/autoolstore.com\/?post_type=product&#038;p=43286"},"modified":"2026-09-20T08:33:16","modified_gmt":"2026-09-20T16:33:16","slug":"autool-spt301-automotive-spark-plug-tester","status":"publish","type":"product","link":"https:\/\/autoolstore.com\/product\/autool-spt301-automotive-spark-plug-tester\/","title":{"rendered":"AUTOOL SPT301 Three-Hole Digital Spark Plug Tester"},"content":{"rendered":"\n\n\r\n<div class=\"autool-page-shell\"><main class=\"autool-description autool-product-page\" data-autool-lightbox=\"off\" data-autool-mobile-nav=\"false\" data-autool-rail-controls=\"true\" id=\"spt301-product-page\"><section class=\"autool-section autool-product-hero autool-section--overview\" data-autool-nav=\"Overview\" data-autool-surface=\"dark\" id=\"autool-overview\"><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 SPT301 \u00b7 Three-Position Spark Plug Tester<\/p>\r\n<h2 class=\"autool-product-hero__title\">Compare Two Plugs Against a Reference<\/h2>\r\n<p class=\"autool-product-hero__lead\">Compare two test spark plugs against a known reference plug at the same bench setting. SPT301 provides three positions, an adjustable 200\u20139000 rpm simulated rate, and a backlit digital speed display. Adjustable socket height accommodates compatible longer plug ends, while the transparent cover keeps all firing positions visible.<\/p>\r\n<ul aria-label=\"SPT301 key benefits\" class=\"autool-product-hero__capabilities\">\r\n<li>1 Reference + 2 Test Plugs<\/li>\r\n<li>200\u20139000 rpm Bench Setting<\/li>\r\n<li>Digital Speed Display<\/li>\r\n<li>Height-Adjustable Plug Sockets<\/li>\r\n<li>110 V \/ 220 V Input<\/li>\r\n<\/ul>\r\n<nav aria-label=\"SPT301 sections\" class=\"autool-product-hero__actions\"><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>\r\n<\/div>\r\n<figure class=\"autool-product-hero__media\"><img alt=\"AUTOOL SPT301 spark plug tester main product image with three-hole design 9000 RPM digital display and safety cover\" decoding=\"async\" fetchpriority=\"high\" loading=\"eager\" src=\"https:\/\/autoolstore.com\/wp-content\/uploads\/autool-localized-resources\/2026-05-11\/images\/autool-spt301-spark-plug-tester-main-product-three.png\"\/><\/figure>\r\n<\/div><\/section><aside aria-label=\"SPT301 at a glance\" class=\"autool-product-metrics\"><div class=\"autool-product-metrics__inner\">\r\n<div class=\"autool-product-metric\">\r\n<strong>3<\/strong><span>Plug Positions<\/span>\r\n<\/div>\r\n<div class=\"autool-product-metric\">\r\n<strong>200\u20139000 rpm<\/strong><span>Simulated Rate<\/span>\r\n<\/div>\r\n<div class=\"autool-product-metric\">\r\n<strong>110 V \/ 220 V AC<\/strong><span>Input Options<\/span>\r\n<\/div>\r\n<div class=\"autool-product-metric\">\r\n<strong>LCD<\/strong><span>Speed Display<\/span>\r\n<\/div>\r\n<\/div><\/aside><section class=\"autool-section autool-product-section--soft autool-section--value\" data-autool-surface=\"base\" id=\"autool-features\"><div class=\"autool-layout-container\">\r\n<header class=\"autool-section-head\"><p class=\"autool-subhead\">Key Features<\/p>\r\n<h2 class=\"autool-title\">Three Spark Plug Positions with Digital Speed Control<\/h2><\/header><div class=\"autool-product-grid autool-product-grid--3 autool-product-rail\" data-autool-rail=\"features\">\r\n<article class=\"autool-product-card\"><h3>1 Reference + 2 Test Plugs<\/h3>\r\n<p>Test one standard or new spark plug together with two test spark plugs for a more straightforward visual comparison of spark strength and performance.<\/p><\/article><article class=\"autool-product-card\"><h3>200-9000 RPM Simulation<\/h3>\r\n<p>Adjust the bench firing-rate setting from 200 to 9000 rpm and compare the reference and test plugs at the same displayed setting. Treat the result as a relative in-air observation, not proof of spark performance under cylinder pressure or load.<\/p><\/article><article class=\"autool-product-card\"><h3>Three-Hole Design<\/h3>\r\n<p>The three-hole layout supports simultaneous comparison of three spark plug positions, making it suitable for efficient 12V automotive spark plug checks.<\/p><\/article><article class=\"autool-product-card\"><h3>Adjustable Test Hole Height<\/h3>\r\n<p>The adjustable test hole height helps support longer spark plug ends and improves compatibility for models that use longer plug structures.<\/p><\/article><article class=\"autool-product-card\"><h3>Digital RPM Display<\/h3>\r\n<p>The LCD digital backlit display clearly shows the simulated RPM, helping users control test conditions with better visibility.<\/p><\/article><article class=\"autool-product-card\"><h3>Transparent Safety Cover<\/h3>\r\n<p>The protective cover lets users observe spark behavior while reducing direct spark exposure during operation.<\/p><\/article><article class=\"autool-product-card\"><h3>Accessible Test Controls<\/h3>\r\n<p>The test holes, transparent cover, digital display and buttons are grouped together for spark plug comparison.<\/p><\/article><article class=\"autool-product-card\"><h3>External Adapter Power<\/h3>\r\n<p>SPT301 uses AC 110V \/ 220V input power and DC12V output. Confirm local power compatibility before use.<\/p><\/article><article class=\"autool-product-card\"><h3>Body Size and Weight<\/h3><p>Body dimensions: 200 \u00d7 118 \u00d7 118 mm. Product weight: 500 g.<\/p><\/article><article class=\"autool-product-card\"><h3>3 Years Warranty Support<\/h3><p>Main unit: 3-year warranty. Standard accessories: 1-year warranty. <a href=\"https:\/\/autoolstore.com\/warranty-policy\/\" rel=\"noopener\" target=\"_blank\">Warranty Policy<\/a>.<\/p><\/article><\/div>\r\n<\/div><\/section><section class=\"autool-section autool-section--workflow autool-section--workflow-anchor\" data-autool-surface=\"dark\" id=\"autool-use\"><div class=\"autool-layout-container\">\r\n<header class=\"autool-section-head\"><p class=\"autool-subhead\">Service Workflow<\/p>\r\n<h2 class=\"autool-title\">Install a Reference and Compare Under Cover<\/h2><\/header><div class=\"autool-workflow\" data-autool-workflow=\"\" data-workflow-mode=\"panels\">\r\n<div aria-label=\"spt301 workflow\" class=\"autool-workflow__tabs\" data-workflow-tabs=\"\" role=\"tablist\">\r\n<button aria-controls=\"spt301-panel-0\" aria-selected=\"true\" class=\"autool-workflow__tab\" data-workflow-step=\"0\" id=\"spt301-tab-0\" role=\"tab\" tabindex=\"0\" type=\"button\">01<br\/><wbr\/>Place<wbr\/> The<wbr\/> Spark<wbr\/> Plugs<\/button><button aria-controls=\"spt301-panel-1\" aria-selected=\"false\" class=\"autool-workflow__tab\" data-workflow-step=\"1\" id=\"spt301-tab-1\" role=\"tab\" tabindex=\"-1\" type=\"button\">02<br\/><wbr\/>Close<wbr\/> The<wbr\/> Protective<wbr\/> Cover<\/button><button aria-controls=\"spt301-panel-2\" aria-selected=\"false\" class=\"autool-workflow__tab\" data-workflow-step=\"2\" id=\"spt301-tab-2\" role=\"tab\" tabindex=\"-1\" type=\"button\">03<br\/><wbr\/>Connect<wbr\/> Power<wbr\/> And<wbr\/> Start<\/button><button aria-controls=\"spt301-panel-3\" aria-selected=\"false\" class=\"autool-workflow__tab\" data-workflow-step=\"3\" id=\"spt301-tab-3\" role=\"tab\" tabindex=\"-1\" type=\"button\">04<br\/><wbr\/>Adjust<wbr\/> RPM<wbr\/> And<wbr\/> Observe<\/button>\r\n<\/div>\r\n<div class=\"autool-workflow__position\">\r\n<span class=\"autool-workflow__position-label\">Step progress<\/span><span class=\"autool-workflow__progress\"><span class=\"autool-workflow__progress-bar\" data-workflow-progress=\"\"><\/span><\/span><span class=\"autool-workflow__position-count\" data-workflow-count=\"\">1 \/ 4<\/span>\r\n<\/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 aria-labelledby=\"spt301-tab-0\" class=\"autool-workflow__panel\" data-workflow-panel=\"\" id=\"spt301-panel-0\" role=\"tabpanel\" tabindex=\"0\"><div class=\"autool-workflow__number\">01<\/div>\r\n<h3 class=\"autool-workflow__title\">Place The Spark Plugs<\/h3>\r\n<p class=\"autool-workflow__description\">Insert the standard spark plug into the standard test hole, then insert the spark plugs to be tested into the test holes.<\/p><\/article><article aria-labelledby=\"spt301-tab-1\" class=\"autool-workflow__panel\" data-workflow-panel=\"\" hidden=\"\" id=\"spt301-panel-1\" role=\"tabpanel\" tabindex=\"0\"><div class=\"autool-workflow__number\">02<\/div>\r\n<h3 class=\"autool-workflow__title\">Close The Protective Cover<\/h3>\r\n<p class=\"autool-workflow__description\">Cover the protective cover before testing to reduce direct spark exposure and improve safety during observation.<\/p><\/article><article aria-labelledby=\"spt301-tab-2\" class=\"autool-workflow__panel\" data-workflow-panel=\"\" hidden=\"\" id=\"spt301-panel-2\" role=\"tabpanel\" tabindex=\"0\"><div class=\"autool-workflow__number\">03<\/div>\r\n<h3 class=\"autool-workflow__title\">Connect Power And Start<\/h3>\r\n<p class=\"autool-workflow__description\">Plug the power adapter into the side power interface, connect the power supply, and turn on the power switch.<\/p><\/article><article aria-labelledby=\"spt301-tab-3\" class=\"autool-workflow__panel\" data-workflow-panel=\"\" hidden=\"\" id=\"spt301-panel-3\" role=\"tabpanel\" tabindex=\"0\"><div class=\"autool-workflow__number\">04<\/div>\r\n<h3 class=\"autool-workflow__title\">Adjust RPM And Observe<\/h3>\r\n<p class=\"autool-workflow__description\">Use the \u201c+\u201d and \u201c-\u201d buttons to adjust the working frequency, then observe the spark plug test status through the protective cover.<\/p><\/article>\r\n<\/div>\r\n<div class=\"autool-workflow__actions\">\r\n<button class=\"autool-workflow__button\" data-workflow-prev=\"\" disabled=\"\" type=\"button\">\u2190 Previous<\/button><button class=\"autool-workflow__button autool-workflow__button--next\" data-workflow-next=\"\" type=\"button\">Next step \u2192<\/button>\r\n<\/div>\r\n<\/div>\r\n<aside class=\"autool-workflow__safety\" data-workflow-safety=\"\"><h3 class=\"autool-workflow__safety-title\">Before You Start<\/h3>\r\n<ul class=\"autool-workflow__safety-list\">\r\n<li>Do not insert or remove spark plugs while the power supply is connected. Turn off the tester before installing, removing, or repositioning spark plugs.<\/li>\r\n<li>Close the transparent protective cover before testing. It helps reduce direct exposure to sparks during visual observation.<\/li>\r\n<\/ul><\/aside>\r\n<\/div>\r\n<\/div>\r\n<\/div><\/section><section class=\"autool-section autool-product-section--soft\" data-autool-surface=\"base\" id=\"autool-safety\"><div class=\"autool-layout-container\">\r\n<header class=\"autool-section-head\"><p class=\"autool-subhead\">Safe Use<\/p>\r\n<h2 class=\"autool-title\">Treat the Bench Spark as a Relative Check<\/h2><\/header><div class=\"autool-product-grid autool-product-grid--3 autool-product-rail\" data-autool-rail=\"safety\">\r\n<article class=\"autool-product-card\"><h3>Power Off Before Installing Plugs<\/h3>\r\n<p>Do not insert or remove spark plugs while the power supply is connected. Turn off the tester before installing, removing, or repositioning spark plugs.<\/p><\/article><article class=\"autool-product-card\"><h3>Close The Safety Cover<\/h3>\r\n<p>Close the transparent protective cover before testing. It helps reduce direct exposure to sparks during visual observation.<\/p><\/article><article class=\"autool-product-card\"><h3>Do Not Touch During Operation<\/h3>\r\n<p>When the spark plug is running, the voltage can reach tens of thousands of volts. Do not touch the spark plug directly with bare hands.<\/p><\/article><article class=\"autool-product-card\"><h3>Use Correct Input Power<\/h3>\r\n<p>Use AC 110V \/ 220V \u00b110% input power as specified for the SPT301 spark plug tester.<\/p><\/article><article class=\"autool-product-card\"><h3>Use For Suitable Spark Plugs<\/h3>\r\n<p>SPT301 is suitable for common 12V automotive spark plug testing and motorcycle spark plug checks. Confirm size and fitment before testing unusual plug types.<\/p><\/article><article class=\"autool-product-card\"><h3>Store In A Dry Place<\/h3>\r\n<p>When not in use, store the tester in a dry, ventilated place. Avoid hot, humid, non-ventilated areas and contact with corrosive liquids.<\/p><\/article><article class=\"autool-product-card\"><h3>Compare Bench Results<\/h3>\r\n<p>Compare spark behavior across plugs, then confirm suspected ignition faults on the vehicle.<\/p><\/article>\r\n<article class=\"autool-product-card\"><h3>Inspect Before Operation<\/h3><p>Tighten loose parts before operation and avoid rubbing the housing against rough surfaces. Do not overload the equipment; keep the safety guard complete and reliable. Stop use if wiring is aging or damaged.<\/p><\/article><\/div>\r\n<\/div><\/section><section class=\"autool-section autool-comparison\" data-autool-nav=\"Spec&amp;Comparison\" data-autool-surface=\"dark\" id=\"autool-comparison\"><div class=\"autool-layout-container\">\r\n<header class=\"autool-section-head\"><p class=\"autool-subhead\">Model Comparison<\/p>\r\n<h2 class=\"autool-title\">Choose the Right Spark Plug Tester<\/h2><\/header><div class=\"autool-model-compare\" data-autool-model-compare=\"\" data-current-model=\"spt301\">\r\n<button aria-controls=\"compare-source-16-compare-model-picker\" aria-expanded=\"false\" aria-label=\"Open model comparison selector\" class=\"autool-model-compare__mobile-trigger\" data-compare-picker-open=\"\" type=\"button\"><span class=\"autool-model-compare__mobile-trigger-copy\"><strong>Compare models<\/strong><span data-compare-mobile-summary=\"\">Selected: SPT301<\/span><\/span><span class=\"autool-model-compare__mobile-trigger-count\" data-compare-mobile-count=\"\">1<\/span><\/button>\r\n<button aria-label=\"Close model selector\" class=\"autool-model-compare__scrim\" data-compare-picker-close=\"\" tabindex=\"-1\" type=\"button\"><\/button>\r\n<div aria-labelledby=\"compare-source-16-compare-picker-title\" class=\"autool-model-compare__selector\" id=\"compare-source-16-compare-model-picker\" role=\"group\">\r\n<div class=\"autool-model-compare__selector-head\">\r\n<div class=\"autool-model-compare__selector-copy\">\r\n<h3 class=\"autool-model-compare__legend\" id=\"compare-source-16-compare-picker-title\">Model Guide<\/h3>\r\n<p class=\"autool-model-compare__instruction\">Choose one or more models. SPT301 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 aria-label=\"Close model selector\" class=\"autool-model-compare__picker-close\" data-compare-picker-close=\"\" type=\"button\">\u00d7<\/button>\r\n<\/div>\r\n<\/div>\r\n<div aria-label=\"Models available for comparison\" class=\"autool-model-compare__grid\" role=\"list\">\r\n<label class=\"autool-model-option\" data-model-card=\"spt101\" role=\"listitem\"><input data-model-checkbox=\"\" type=\"checkbox\" value=\"spt101\"\/><span class=\"autool-model-option__copy\"><strong class=\"autool-model-option__model\">SPT101<\/strong><span class=\"autool-model-option__tier\">2-plug testing \/ 0\u20136000 rpm \/ Fixed height<\/span><\/span><\/label><label class=\"autool-model-option\" data-model-card=\"spt105\" role=\"listitem\"><input data-model-checkbox=\"\" type=\"checkbox\" value=\"spt105\"\/><span class=\"autool-model-option__copy\"><strong class=\"autool-model-option__model\">SPT105<\/strong><span class=\"autool-model-option__tier\">2-plug testing \/ Long-plug fit \/ Adjustable height<\/span><\/span><\/label><label class=\"autool-model-option autool-is-selected\" data-model-card=\"spt301\" role=\"listitem\"><input checked=\"\" data-model-checkbox=\"\" type=\"checkbox\" value=\"spt301\"\/><span class=\"autool-model-option__copy\"><strong class=\"autool-model-option__model\">SPT301<\/strong><span class=\"autool-model-option__tier\">3-plug testing \/ 200\u20139000 rpm \/ LCD<\/span><\/span><span class=\"autool-model-option__current\">Current model<\/span><\/label><label class=\"autool-model-option\" data-model-card=\"spt360\" role=\"listitem\"><input data-model-checkbox=\"\" type=\"checkbox\" value=\"spt360\"\/><span class=\"autool-model-option__copy\"><strong class=\"autool-model-option__model\">SPT360<\/strong><span class=\"autool-model-option__tier\">5-plug testing \/ 200\u20139000 rpm \/ LCD<\/span><\/span><\/label>\r\n<\/div>\r\n<div class=\"autool-model-compare__selection-bar\">\r\n<p aria-live=\"polite\" class=\"autool-model-compare__status\" data-compare-status=\"\" id=\"compare-source-16-compare-result-status\" role=\"status\">AUTOOL SPT301 is selected. Choose another model for a side-by-side comparison.<\/p>\r\n<div class=\"autool-model-compare__selection-actions\">\r\n<button class=\"autool-model-compare__clear\" data-compare-clear=\"\" disabled=\"\" type=\"button\">Reset selection<\/button><button class=\"autool-model-compare__done\" data-compare-picker-close=\"\" type=\"button\">Done<\/button>\r\n<\/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 class=\"autool-model-compare__result-title\" data-compare-title=\"\" id=\"compare-source-16-compare-result-title\">SPT301 comparison<\/h3>\r\n<label aria-disabled=\"true\" class=\"autool-model-compare__difference-toggle\" data-differences-label=\"\"><input data-differences-only=\"\" disabled=\"\" type=\"checkbox\"\/> Show differences only<\/label>\r\n<\/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 aria-describedby=\"compare-source-16-compare-result-status\" aria-labelledby=\"compare-source-16-compare-result-title\" class=\"autool-compare-matrix-wrap\" role=\"region\" tabindex=\"0\">\r\n<table class=\"autool-compare-matrix\" data-autool-columns=\"1\">\r\n<caption class=\"autool-visually-hidden autool-table-caption--accessible\">Comparison of AUTOOL Spark Plug Testers<\/caption>\r\n<colgroup>\r\n<col class=\"autool-compare-matrix__criteria-col\"\/>\r\n<col class=\"autool-compare-matrix__model-col\" data-compare-model=\"spt101\" hidden=\"\"\/>\r\n<col class=\"autool-compare-matrix__model-col\" data-compare-model=\"spt105\" hidden=\"\"\/>\r\n<col class=\"autool-compare-matrix__model-col\" data-compare-model=\"spt301\"\/>\r\n<col class=\"autool-compare-matrix__model-col\" data-compare-model=\"spt360\" hidden=\"\"\/>\r\n<\/colgroup>\r\n<thead><tr>\r\n<th scope=\"col\">Product Name<\/th>\r\n<th data-compare-model=\"spt101\" hidden=\"\" scope=\"col\">SPT101<\/th>\r\n<th data-compare-model=\"spt105\" hidden=\"\" scope=\"col\">SPT105<\/th>\r\n<th data-compare-model=\"spt301\" scope=\"col\">SPT301<\/th>\r\n<th data-compare-model=\"spt360\" hidden=\"\" scope=\"col\">SPT360<\/th>\r\n<\/tr><\/thead>\r\n<tbody><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 Setup &amp; Capacity<\/span><\/th>\r\n<td class=\"autool-compare-matrix__category-track\" colspan=\"1\" data-compare-category-track=\"\"><span aria-hidden=\"true\" class=\"autool-compare-matrix__category-progress\" 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-meter\"><span class=\"autool-compare-matrix__category-progress-bar\"><\/span><\/span><span class=\"autool-compare-matrix__category-progress-count\" data-compare-category-count=\"\">1 \/ 1<\/span><\/span><\/td>\r\n<\/tr><tr data-compare-group=\"layout-group-1\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Adjustable Hole Position Height<\/th>\r\n<td data-compare-model=\"spt101\" hidden=\"\"><div class=\"autool-compare-matrix__value\"><span aria-label=\"No\" class=\"autool-compare-matrix__mark\" data-autool-state=\"no\" data-layout43-marker=\"\" role=\"img\">\u00d7<\/span><\/div><\/td>\r\n<td data-compare-model=\"spt105\" hidden=\"\"><div class=\"autool-compare-matrix__value\"><span aria-label=\"Yes\" class=\"autool-compare-matrix__mark\" data-autool-state=\"yes\" data-layout43-marker=\"\" role=\"img\">\u2713<\/span><\/div><\/td>\r\n<td data-compare-model=\"spt301\"><div class=\"autool-compare-matrix__value\"><span aria-label=\"Yes\" class=\"autool-compare-matrix__mark\" data-autool-state=\"yes\" data-layout43-marker=\"\" role=\"img\">\u2713<\/span><\/div><\/td>\r\n<td data-compare-model=\"spt360\" hidden=\"\"><div class=\"autool-compare-matrix__value\"><span aria-label=\"Yes\" class=\"autool-compare-matrix__mark\" data-autool-state=\"yes\" data-layout43-marker=\"\" role=\"img\">\u2713<\/span><\/div><\/td>\r\n<\/tr><tr data-compare-group=\"layout-group-1\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Working Principle<\/th>\r\n<td data-compare-model=\"spt101\" hidden=\"\"><div class=\"autool-compare-matrix__value\">Digital Sensing<\/div><\/td>\r\n<td data-compare-model=\"spt105\" hidden=\"\"><div class=\"autool-compare-matrix__value\">Digital Sensing<\/div><\/td>\r\n<td data-compare-model=\"spt301\"><div class=\"autool-compare-matrix__value\">Digital Sensing<\/div><\/td>\r\n<td data-compare-model=\"spt360\" hidden=\"\"><div class=\"autool-compare-matrix__value\">Digital Sensing<\/div><\/td>\r\n<\/tr><tr data-compare-group=\"layout-group-1\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Simulated RPM<\/th>\r\n<td data-compare-model=\"spt101\" hidden=\"\"><div class=\"autool-compare-matrix__value\">0-6000rpm<\/div><\/td>\r\n<td data-compare-model=\"spt105\" hidden=\"\"><div class=\"autool-compare-matrix__value\">Page: 0\u20136000 rpm; manual operation: 1000\u20136000 rpm\/min (confirm delivered version)<\/div><\/td>\r\n<td data-compare-model=\"spt301\"><div class=\"autool-compare-matrix__value\">200-9000rpm<\/div><\/td>\r\n<td data-compare-model=\"spt360\" hidden=\"\"><div class=\"autool-compare-matrix__value\">200\u20139000 rpm<\/div><\/td>\r\n<\/tr><tr data-compare-group=\"layout-group-1\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Test Hole Position<\/th>\r\n<td data-compare-model=\"spt101\" hidden=\"\"><div class=\"autool-compare-matrix__value\">2<\/div><\/td>\r\n<td data-compare-model=\"spt105\" hidden=\"\"><div class=\"autool-compare-matrix__value\">2<\/div><\/td>\r\n<td data-compare-model=\"spt301\"><div class=\"autool-compare-matrix__value\">3<\/div><\/td>\r\n<td data-compare-model=\"spt360\" hidden=\"\"><div class=\"autool-compare-matrix__value\">5<\/div><\/td>\r\n<\/tr><tr data-compare-group=\"layout-group-1\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Air-Bench Spark Observation<\/th>\r\n<td data-compare-model=\"spt101\" hidden=\"\"><div class=\"autool-compare-matrix__value\"><span aria-label=\"Yes\" class=\"autool-compare-matrix__mark\" data-autool-state=\"yes\" data-layout43-marker=\"\" role=\"img\">\u2713<\/span><\/div><\/td>\r\n<td data-compare-model=\"spt105\" hidden=\"\"><div class=\"autool-compare-matrix__value\"><span aria-label=\"Yes\" class=\"autool-compare-matrix__mark\" data-autool-state=\"yes\" data-layout43-marker=\"\" role=\"img\">\u2713<\/span><\/div><\/td>\r\n<td data-compare-model=\"spt301\"><div class=\"autool-compare-matrix__value\"><span aria-label=\"Yes\" class=\"autool-compare-matrix__mark\" data-autool-state=\"yes\" data-layout43-marker=\"\" role=\"img\">\u2713<\/span><\/div><\/td>\r\n<td data-compare-model=\"spt360\" hidden=\"\"><div class=\"autool-compare-matrix__value\"><span aria-label=\"Yes\" class=\"autool-compare-matrix__mark\" data-autool-state=\"yes\" data-layout43-marker=\"\" role=\"img\">\u2713<\/span><\/div><\/td>\r\n<\/tr><tr data-compare-group=\"layout-group-1\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Adjustable Bench Firing Rate<\/th>\r\n<td data-compare-model=\"spt101\" hidden=\"\"><div class=\"autool-compare-matrix__value\"><span aria-label=\"Yes\" class=\"autool-compare-matrix__mark\" data-autool-state=\"yes\" data-layout43-marker=\"\" role=\"img\">\u2713<\/span><\/div><\/td>\r\n<td data-compare-model=\"spt105\" hidden=\"\"><div class=\"autool-compare-matrix__value\"><span aria-label=\"Yes\" class=\"autool-compare-matrix__mark\" data-autool-state=\"yes\" data-layout43-marker=\"\" role=\"img\">\u2713<\/span><\/div><\/td>\r\n<td data-compare-model=\"spt301\"><div class=\"autool-compare-matrix__value\"><span aria-label=\"Yes\" class=\"autool-compare-matrix__mark\" data-autool-state=\"yes\" data-layout43-marker=\"\" role=\"img\">\u2713<\/span><\/div><\/td>\r\n<td data-compare-model=\"spt360\" hidden=\"\"><div class=\"autool-compare-matrix__value\"><span aria-label=\"Yes\" class=\"autool-compare-matrix__mark\" data-autool-state=\"yes\" data-layout43-marker=\"\" role=\"img\">\u2713<\/span><\/div><\/td>\r\n<\/tr><tr data-compare-group=\"layout-group-1\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Supports Testing of Long Spark Plugs<\/th>\r\n<td data-compare-model=\"spt101\" hidden=\"\"><div class=\"autool-compare-matrix__value\"><span aria-label=\"No\" class=\"autool-compare-matrix__mark\" data-autool-state=\"no\" data-layout43-marker=\"\" role=\"img\">\u00d7<\/span><\/div><\/td>\r\n<td data-compare-model=\"spt105\" hidden=\"\"><div class=\"autool-compare-matrix__value\"><span aria-label=\"Yes\" class=\"autool-compare-matrix__mark\" data-autool-state=\"yes\" data-layout43-marker=\"\" role=\"img\">\u2713<\/span><\/div><\/td>\r\n<td data-compare-model=\"spt301\"><div class=\"autool-compare-matrix__value\"><span aria-label=\"Yes\" class=\"autool-compare-matrix__mark\" data-autool-state=\"yes\" data-layout43-marker=\"\" role=\"img\">\u2713<\/span><\/div><\/td>\r\n<td data-compare-model=\"spt360\" hidden=\"\"><div class=\"autool-compare-matrix__value\"><span aria-label=\"Yes\" class=\"autool-compare-matrix__mark\" data-autool-state=\"yes\" data-layout43-marker=\"\" role=\"img\">\u2713<\/span><\/div><\/td>\r\n<\/tr><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\">Power &amp; Operating Conditions<\/span><\/th>\r\n<td class=\"autool-compare-matrix__category-track\" colspan=\"1\" data-compare-category-track=\"\"><span aria-hidden=\"true\" class=\"autool-compare-matrix__category-progress\" 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-meter\"><span class=\"autool-compare-matrix__category-progress-bar\"><\/span><\/span><span class=\"autool-compare-matrix__category-progress-count\" data-compare-category-count=\"\">1 \/ 1<\/span><\/span><\/td>\r\n<\/tr><tr data-compare-group=\"layout-group-2\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Input Voltage<\/th>\r\n<td data-compare-model=\"spt101\" hidden=\"\"><div class=\"autool-compare-matrix__value\">110V\/220V<\/div><\/td>\r\n<td data-compare-model=\"spt105\" hidden=\"\"><div class=\"autool-compare-matrix__value\">110V\/220V<\/div><\/td>\r\n<td data-compare-model=\"spt301\"><div class=\"autool-compare-matrix__value\">110V\/220V<\/div><\/td>\r\n<td data-compare-model=\"spt360\" hidden=\"\"><div class=\"autool-compare-matrix__value\">110V\/220V<\/div><\/td>\r\n<\/tr><tr data-compare-group=\"layout-group-2\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Ambient Temperature<\/th>\r\n<td data-compare-model=\"spt101\" hidden=\"\"><div class=\"autool-compare-matrix__value\">0-45\u2103<\/div><\/td>\r\n<td data-compare-model=\"spt105\" hidden=\"\"><div class=\"autool-compare-matrix__value\">0-45\u2103<\/div><\/td>\r\n<td data-compare-model=\"spt301\"><div class=\"autool-compare-matrix__value\">0-45\u2103<\/div><\/td>\r\n<td data-compare-model=\"spt360\" hidden=\"\"><div class=\"autool-compare-matrix__value\">0-45\u2103<\/div><\/td>\r\n<\/tr><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\">Safety &amp; Display<\/span><\/th>\r\n<td class=\"autool-compare-matrix__category-track\" colspan=\"1\" data-compare-category-track=\"\"><span aria-hidden=\"true\" class=\"autool-compare-matrix__category-progress\" 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-meter\"><span class=\"autool-compare-matrix__category-progress-bar\"><\/span><\/span><span class=\"autool-compare-matrix__category-progress-count\" data-compare-category-count=\"\">1 \/ 1<\/span><\/span><\/td>\r\n<\/tr><tr data-compare-group=\"layout-group-3\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">Safety Protection Cover<\/th>\r\n<td data-compare-model=\"spt101\" hidden=\"\"><div class=\"autool-compare-matrix__value\"><span aria-label=\"Yes\" class=\"autool-compare-matrix__mark\" data-autool-state=\"yes\" data-layout43-marker=\"\" role=\"img\">\u2713<\/span><\/div><\/td>\r\n<td data-compare-model=\"spt105\" hidden=\"\"><div class=\"autool-compare-matrix__value\"><span aria-label=\"Yes\" class=\"autool-compare-matrix__mark\" data-autool-state=\"yes\" data-layout43-marker=\"\" role=\"img\">\u2713<\/span><\/div><\/td>\r\n<td data-compare-model=\"spt301\"><div class=\"autool-compare-matrix__value\"><span aria-label=\"Yes\" class=\"autool-compare-matrix__mark\" data-autool-state=\"yes\" data-layout43-marker=\"\" role=\"img\">\u2713<\/span><\/div><\/td>\r\n<td data-compare-model=\"spt360\" hidden=\"\"><div class=\"autool-compare-matrix__value\"><span aria-label=\"Yes\" class=\"autool-compare-matrix__mark\" data-autool-state=\"yes\" data-layout43-marker=\"\" role=\"img\">\u2713<\/span><\/div><\/td>\r\n<\/tr><tr data-compare-group=\"layout-group-3\" data-compare-row=\"\">\r\n<th class=\"autool-compare-matrix__feature\" scope=\"row\">LCD Digital Backlit Screen<\/th>\r\n<td data-compare-model=\"spt101\" hidden=\"\"><div class=\"autool-compare-matrix__value\"><span aria-label=\"No\" class=\"autool-compare-matrix__mark\" data-autool-state=\"no\" data-layout43-marker=\"\" role=\"img\">\u00d7<\/span><\/div><\/td>\r\n<td data-compare-model=\"spt105\" hidden=\"\"><div class=\"autool-compare-matrix__value\"><span aria-label=\"No\" class=\"autool-compare-matrix__mark\" data-autool-state=\"no\" data-layout43-marker=\"\" role=\"img\">\u00d7<\/span><\/div><\/td>\r\n<td data-compare-model=\"spt301\"><div class=\"autool-compare-matrix__value\"><span aria-label=\"Yes\" class=\"autool-compare-matrix__mark\" data-autool-state=\"yes\" data-layout43-marker=\"\" role=\"img\">\u2713<\/span><\/div><\/td>\r\n<td data-compare-model=\"spt360\" hidden=\"\"><div class=\"autool-compare-matrix__value\"><span aria-label=\"Yes\" class=\"autool-compare-matrix__mark\" data-autool-state=\"yes\" data-layout43-marker=\"\" role=\"img\">\u2713<\/span><\/div><\/td>\r\n<\/tr><\/tbody>\r\n<\/table>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div><\/section><section class=\"autool-section autool-product-section--cool autool-section--downloads\" data-autool-surface=\"cool\" id=\"autool-download\"><div class=\"autool-layout-container\">\r\n<header class=\"autool-section-head\"><p class=\"autool-subhead\">Manual &amp; Support<\/p>\r\n<h2 class=\"autool-title\">Find the Manual and Setup Guidance<\/h2><\/header><div aria-label=\"SPT301 manual download and setup support\" class=\"autool-product-rail autool-resources-grid autool-mobile-rail\" data-autool-rail=\"resources\">\r\n<article class=\"autool-resource-download autool-resource-panel\"><div class=\"autool-resource-media\"><img loading=\"lazy\" alt=\"AUTOOL SPT301 user manual cover\" decoding=\"async\" height=\"300\" loading=\"lazy\" src=\"https:\/\/autoolstore.com\/wp-content\/uploads\/2024\/03\/autool-spt301-user-manual-pdf.jpg\" width=\"212\"\/> <\/div><div class=\"autool-resource-body\"><span class=\"autool-resource-meta\">Manual \/ PDF<\/span><h3>AUTOOL SPT301 User Manual<\/h3><p>Open the PDF manual for AUTOOL SPT301 three-hole spark-plug comparison, test-height and speed adjustment, digital RPM reading, protective-cover use, safety and troubleshooting support.<\/p><div class=\"autool-resource-actions\"><a class=\"autool-product-button\" href=\"https:\/\/autoolstore.com\/wp-content\/uploads\/2024\/03\/autool-spt301-user-manual.pdf\" rel=\"noopener\" target=\"_blank\">Download Manual<\/a><\/div><\/div><\/article><aside class=\"autool-resource-panel autool-section--support\" id=\"autool-support\"><div class=\"autool-resource-body\"><span class=\"autool-resource-meta\">Setup Help<\/span><h3>Need Help Choosing the Right Setup?<\/h3><p>Contact AUTOOL Store before ordering for help with manual versions, installation steps, compatibility, accessories, safe-use instructions, or after-sales support.<\/p><dl class=\"autool-support-list\"><div><dt>Email<\/dt><dd><a href=\"mailto:support@autoolstore.com\">support@autoolstore.com<\/a><\/dd><\/div><div><dt>WhatsApp<\/dt><dd><a href=\"https:\/\/wa.me\/8618926477404\" target=\"_blank\" rel=\"noopener\">+86 189 2647 7404<\/a><\/dd><\/div><\/dl><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\" rel=\"noopener\" target=\"_blank\">WHATSAPP<\/a><\/div><\/div><\/aside>\r\n<\/div>\r\n<\/div><\/section><section class=\"autool-section autool-product-section--warm autool-section--package\" data-autool-surface=\"warm\" id=\"autool-box\"><div class=\"autool-layout-container\">\r\n<div class=\"autool-package-layout\">\r\n<figure class=\"autool-package-media\"><img decoding=\"async\" alt=\"AUTOOL SPT301 packing list showing spark plug tester retail box user manual and power adapter\" src=\"https:\/\/autoolstore.com\/wp-content\/uploads\/autool-localized-resources\/2026-05-11\/images\/autool-spt301-packing-list-showing-spark-plug-tester.png\"\/> <\/figure>\r\n<div class=\"autool-package-copy\"><p class=\"autool-subhead\">Package Contents<\/p>\r\n<h2 class=\"autool-title\">See What Comes in the Box<\/h2><ul aria-label=\"SPT301 package contents\" class=\"autool-package-list autool-product-rail\" data-autool-rail=\"package\">\r\n<li>\r\n<span>Main Unit<\/span><strong>AUTOOL SPT301 spark plug tester<\/strong><\/li>\r\n<li>\r\n<span>Power Adapter<\/span><strong>Included power adapter<\/strong><\/li>\r\n<li>\r\n<span>Documentation<\/span><strong>AUTOOL SPT301 user manual<\/strong><\/li>\r\n<li>\r\n<span>Retail Box<\/span><strong>AUTOOL SPT301 packaging box<\/strong><\/li>\r\n<li>\r\n<span>Accessories<\/span><strong>Accessories follow the listed package configuration.<\/strong><\/li>\r\n<\/ul><\/div>\r\n<\/div>\r\n<\/div><\/section><section class=\"autool-section autool-product-section--white autool-section--faq\" data-autool-nav=\"FAQ\" data-autool-surface=\"white\" id=\"autool-faq-description\"><div class=\"autool-layout-container\">\r\n<header class=\"autool-section-head\"><p class=\"autool-subhead\">Buyer Questions<\/p>\r\n<h2 class=\"autool-title\">Spark Plug Fit and Comparison Questions<\/h2><\/header><div class=\"autool-faq-grid\">\r\n<details><summary>What Spark Plugs Can SPT301 Test?<\/summary><div class=\"autool-faq-answer\"><p>SPT301 is designed for common 12V automotive spark plug testing and motorcycle spark plug checks. It supports long spark plug testing and adjustable test hole height, but users should confirm fitment before testing unusual plug sizes or special structures.<\/p><\/div><\/details><details><summary>How Many Spark Plugs Can It Test At The Same Time?<\/summary><div class=\"autool-faq-answer\"><p>SPT301 has three test positions. It can compare one standard or new spark plug with two spark plugs to be tested, helping users observe spark strength and performance differences more directly.<\/p><\/div><\/details><details><summary>Can The Simulated RPM Be Adjusted?<\/summary><div class=\"autool-faq-answer\"><p>Yes. Use the \u201c+\u201d and \u201c-\u201d buttons to adjust the working frequency. SPT301 supports 200-9000 RPM simulation, and the digital display shows the simulated RPM during testing.<\/p><\/div><\/details><details><summary>What Power Supply Does SPT301 Use?<\/summary><div class=\"autool-faq-answer\"><p>SPT301 uses AC 110 V \/ 220 V \u00b110% input power and DC 12 V output. Use the supplied power adapter and confirm local power compatibility before use.<\/p><\/div><\/details><details><summary>Do I Need To Close The Protective Cover Before Testing?<\/summary><div class=\"autool-faq-answer\"><p>Yes. Close the protective cover before testing. The tester generates high-voltage sparks during operation, so do not touch the spark plug directly and do not insert or remove spark plugs while the power supply is connected.<\/p><\/div><\/details><details><summary>What Is The Difference Between SPT301 And SPT360?<\/summary><div class=\"autool-faq-answer\"><p>SPT301 has three test hole positions and supports 200-9000 RPM, LCD digital backlit display, adjustable hole position height, and long spark plug testing. SPT360 has five test hole positions for users who need more comparison capacity.<\/p><\/div><\/details><details><summary>What Is Included In The Package?<\/summary><div class=\"autool-faq-answer\"><p>Package contents: SPT301 main unit, retail box, user manual, and power adapter. Spark plugs shown in feature images are demonstration items and are not included.<\/p><\/div><\/details><details><summary>How Long Is The Warranty?<\/summary><div class=\"autool-faq-answer\"><p>Main unit: 3-year warranty. Standard accessories: 1-year warranty. <a href=\"https:\/\/autoolstore.com\/warranty-policy\/\" rel=\"noopener\" target=\"_blank\">Warranty Policy<\/a>.<\/p><\/div><\/details>\r\n<\/div>\r\n<\/div><\/section><\/main><\/div>\r\n\r\n","protected":false},"excerpt":{"rendered":"<ul>\n<li><strong>Three-Plug Comparison:<\/strong> Test one reference plug with two test plugs for side-by-side visual comparison.<\/li>\n<li><strong>200\u20139000 RPM Setting:<\/strong> Adjust the simulated firing rate from 200 to 9000 rpm.<\/li>\n<li><strong>Digital RPM Display:<\/strong> Read the simulated speed on the backlit LCD while setting the comparison condition.<\/li>\n<li><strong>Adjustable Plug Height:<\/strong> Adjust the test-hole height for compatible longer spark-plug ends.<\/li>\n<li><strong>Visible Protective Cover:<\/strong> Observe spark behavior through the transparent cover while reducing direct exposure.<\/li>\n<\/ul>\n","protected":false},"featured_media":63553,"comment_status":"open","ping_status":"closed","template":"","meta":{"_gspb_post_css":""},"product_brand":[448],"product_cat":[1063,1070],"product_tag":[1037,940,939,1038,945,953],"hf_cat_product":[4542],"class_list":["post-43286","product","type-product","status-publish","has-post-thumbnail","product_brand-autool","product_cat-automotive-repair-testing-equipment","product_cat-spark-plug-tester","product_tag-best-seller","product_tag-measurement-tools","product_tag-multi-warehouse-shipping","product_tag-new-arrival","product_tag-voltage-options","product_tag-workshop-diagnostic-tools","first","instock","shipping-taxable","purchasable","product-type-variable"],"meta_box":{"autool_archive_segment":"Electrical diagnostics","autool_primary_use_case":"Remote key signal, infrared and button-battery testing","autool_customer_focus":["measurement accuracy","voltage compatibility","warehouse \/ delivery location"],"autool_source_summary":"- Electrical Faults Faster: Puts voltage, polarity, continuity, and signal-check tasks first so users can shorten troubleshooting time. - Voltage Choice Is Visible: Clear voltage options help workshops avoid ordering a m","autool_model_family":"SPT301","autool_voltage_options":"110V\u3001220V","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\/43286","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=43286"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/media\/63553"}],"wp:attachment":[{"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/media?parent=43286"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/product_brand?post=43286"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/product_cat?post=43286"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/product_tag?post=43286"},{"taxonomy":"hf_cat_product","embeddable":true,"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/hf_cat_product?post=43286"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}