{"product_id":"autool-dm109-automotive-circuit-system-tester-multimeter-oscilloscope","title":"AUTOOL DM109 Automotive Circuit System Tester – Multimeter Oscilloscope 9-72V EV Hybrid","description":"\u003c!-- ===== AUTOOL DM109 Automotive Circuit System Tester — Shopify Product Description HTML ===== --\u003e\n\u003c!-- SEO Optimized | Paste into: Products \u003e Description \u003e HTML view (\u003c\u003e) --\u003e\n\n\u003cstyle\u003e\n  .dm9-wrap{font-family:inherit;color:inherit;max-width:100%;line-height:1.6}\n  .dm9-badge{display:inline-block;font-size:11px;font-weight:600;padding:3px 10px;border-radius:20px;margin:3px 4px 3px 0}\n  .dm9-badge-blue{background:#DDEEFF;color:#1A5FAD}\n  .dm9-badge-green{background:#E4F5D4;color:#2D6A10}\n  .dm9-badge-amber{background:#FEF0D4;color:#875010}\n  .dm9-badge-purple{background:#EEECFD;color:#4D3DB5}\n  .dm9-badge-teal{background:#E0F7FA;color:#00695C}\n  .dm9-badge-dark{background:#ECEFF1;color:#263238}\n  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8px 8px 0;padding:12px 16px;font-size:13px;color:#1B5E20;margin:16px 0}\n  .dm9-safety{background:#FDECEA;border-left:3px solid #E53935;border-radius:0 8px 8px 0;padding:12px 16px;font-size:13px;color:#B71C1C;margin:16px 0}\n  .dm9-checklist{list-style:none;padding:0;margin:0 0 20px}\n  .dm9-checklist li{font-size:13px;color:#555;padding:6px 0 6px 24px;position:relative;border-bottom:1px solid #F0F0F0}\n  .dm9-checklist li:last-child{border-bottom:none}\n  .dm9-checklist li::before{content:\"✓\";position:absolute;left:0;color:#2D8B4E;font-weight:700}\n  .dm9-note{background:#F7F8FA;border-radius:8px;padding:12px 16px;font-size:12px;color:#888;margin-top:16px;line-height:1.6}\n  @media(max-width:560px){.dm9-activation-grid{grid-template-columns:1fr}}\n\u003c\/style\u003e\n\n\u003cdiv class=\"dm9-wrap\" itemscope itemtype=\"https:\/\/schema.org\/Product\"\u003e\n\n  \u003c!-- SEO Meta --\u003e\n  \u003cmeta itemprop=\"name\" content=\"AUTOOL DM109 Automotive Circuit System Tester – Multimeter Oscilloscope Component Activation 9-72V 12V 24V 48V 72V\"\u003e\n  \u003cmeta itemprop=\"description\" content=\"AUTOOL DM109 4-in-1 automotive circuit tester with digital multimeter, oscilloscope, signal simulation and component activation. Supports 9–72V vehicles including EV, hybrid and commercial. Smart range recognition. NZ \u0026amp; AU stock.\"\u003e\n\n  \u003c!-- Badges --\u003e\n  \u003cdiv\u003e\n    \u003cspan class=\"dm9-badge dm9-badge-blue\"\u003e4-in-1 Circuit Tester\u003c\/span\u003e\n    \u003cspan class=\"dm9-badge dm9-badge-green\"\u003e9–72V Wide Voltage\u003c\/span\u003e\n    \u003cspan class=\"dm9-badge dm9-badge-purple\"\u003eDigital Multimeter\u003c\/span\u003e\n    \u003cspan class=\"dm9-badge dm9-badge-amber\"\u003eOscilloscope\u003c\/span\u003e\n    \u003cspan class=\"dm9-badge dm9-badge-teal\"\u003eComponent Activation\u003c\/span\u003e\n    \u003cspan class=\"dm9-badge dm9-badge-dark\"\u003eSmart Range Recognition\u003c\/span\u003e\n    \u003cspan class=\"dm9-badge dm9-badge-dark\"\u003eEV \/ Hybrid \/ Commercial\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Intro --\u003e\n  \u003cdiv class=\"dm9-intro\"\u003e\n    The \u003cstrong\u003eAUTOOL DM109 Automotive Circuit System Tester\u003c\/strong\u003e is a professional 4-in-1 electrical diagnostic tool integrating a \u003cstrong\u003edigital multimeter, oscilloscope, component activation driver and signal simulation\u003c\/strong\u003e into a single device. Supporting a \u003cstrong\u003ewide 9–72V voltage range\u003c\/strong\u003e, it covers conventional petrol and diesel vehicles, hybrid vehicles, electric vehicles and commercial trucks — eliminating the need to switch between multiple diagnostic tools. Built-in smart range recognition and dual safety protection make it a reliable, all-in-one solution for automotive electrical troubleshooting.\n  \u003c\/div\u003e\n\n  \u003c!-- Voltage Coverage --\u003e\n  \u003cp class=\"dm9-section-title\"\u003eWide Voltage Coverage — 9V to 72V\u003c\/p\u003e\n  \u003cdiv class=\"dm9-voltage-grid\"\u003e\n    \u003cdiv class=\"dm9-volt-card\"\u003e\n\u003cp class=\"dm9-volt-val\"\u003e12V\u003c\/p\u003e\n\u003cp class=\"dm9-volt-label\"\u003ePetrol \/ Diesel Cars\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"dm9-volt-card\"\u003e\n\u003cp class=\"dm9-volt-val\"\u003e24V\u003c\/p\u003e\n\u003cp class=\"dm9-volt-label\"\u003eTrucks \/ Heavy Duty\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"dm9-volt-card\"\u003e\n\u003cp class=\"dm9-volt-val\"\u003e36V\u003c\/p\u003e\n\u003cp class=\"dm9-volt-label\"\u003eLight EV \/ Hybrid\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"dm9-volt-card\"\u003e\n\u003cp class=\"dm9-volt-val\"\u003e48V\u003c\/p\u003e\n\u003cp class=\"dm9-volt-label\"\u003eMild Hybrid\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"dm9-volt-card\"\u003e\n\u003cp class=\"dm9-volt-val\"\u003e72V\u003c\/p\u003e\n\u003cp class=\"dm9-volt-label\"\u003eEV \/ Engineering\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- 4-in-1 Function Modules --\u003e\n  \u003cp class=\"dm9-section-title\"\u003e4 Functions in 1 Device\u003c\/p\u003e\n  \u003cdiv class=\"dm9-func-grid\"\u003e\n    \u003cdiv class=\"dm9-func-card\"\u003e\n      \u003cdiv class=\"dm9-func-icon\"\u003e📊\u003c\/div\u003e\n      \u003cp class=\"dm9-func-title\"\u003eDigital Multimeter\u003c\/p\u003e\n      \u003cul class=\"dm9-func-list\"\u003e\n        \u003cli\u003eVoltage measurement (0.1V–100V)\u003c\/li\u003e\n        \u003cli\u003eCurrent measurement (0–18A)\u003c\/li\u003e\n        \u003cli\u003eResistance (1Ω–10MΩ)\u003c\/li\u003e\n        \u003cli\u003eContinuity, diode, frequency\u003c\/li\u003e\n        \u003cli\u003eTemperature (-20°C to 600°C)\u003c\/li\u003e\n        \u003cli\u003eStandard multimeter probe compatible\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"dm9-func-card\"\u003e\n      \u003cdiv class=\"dm9-func-icon\"\u003e📈\u003c\/div\u003e\n      \u003cp class=\"dm9-func-title\"\u003eOscilloscope\u003c\/p\u003e\n      \u003cul class=\"dm9-func-list\"\u003e\n        \u003cli\u003eCircuit signal waveform display\u003c\/li\u003e\n        \u003cli\u003eSignal analysis for sensors and actuators\u003c\/li\u003e\n        \u003cli\u003eVisualise voltage fluctuations over time\u003c\/li\u003e\n        \u003cli\u003eDiagnose intermittent electrical faults\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"dm9-func-card\"\u003e\n      \u003cdiv class=\"dm9-func-icon\"\u003e⚡\u003c\/div\u003e\n      \u003cp class=\"dm9-func-title\"\u003eComponent Activation\u003c\/p\u003e\n      \u003cul class=\"dm9-func-list\"\u003e\n        \u003cli\u003e3 activation modes — direct component drive\u003c\/li\u003e\n        \u003cli\u003eTest relays, fuel injectors, actuators\u003c\/li\u003e\n        \u003cli\u003eIdentify component vs wiring vs ECU faults\u003c\/li\u003e\n        \u003cli\u003eReduces unnecessary disassembly\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"dm9-func-card\"\u003e\n      \u003cdiv class=\"dm9-func-icon\"\u003e📡\u003c\/div\u003e\n      \u003cp class=\"dm9-func-title\"\u003eSignal Simulation\u003c\/p\u003e\n      \u003cul class=\"dm9-func-list\"\u003e\n        \u003cli\u003eSimulate sensor signals for circuit testing\u003c\/li\u003e\n        \u003cli\u003eTest ECU response to input signals\u003c\/li\u003e\n        \u003cli\u003eVerify wiring integrity without live sensors\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Circuit Fault Diagnosis --\u003e\n  \u003cp class=\"dm9-section-title\"\u003eComprehensive Circuit Fault Diagnosis\u003c\/p\u003e\n  \u003cdiv class=\"dm9-grid-2\"\u003e\n    \u003cdiv class=\"dm9-card\"\u003e\n\u003cdiv class=\"dm9-card-icon\"\u003e⚡\u003c\/div\u003e\n\u003cp class=\"dm9-card-title\"\u003eVoltage \u0026amp; Polarity Testing\u003c\/p\u003e\n\u003cp class=\"dm9-card-desc\"\u003eMeasure voltage levels and automatically identify circuit polarity — no manual range switching required\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"dm9-card\"\u003e\n\u003cdiv class=\"dm9-card-icon\"\u003e🔗\u003c\/div\u003e\n\u003cp class=\"dm9-card-title\"\u003eContinuity Testing\u003c\/p\u003e\n\u003cp class=\"dm9-card-desc\"\u003eQuickly verify circuit continuity and identify open or broken circuits in wiring harnesses\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"dm9-card\"\u003e\n\u003cdiv class=\"dm9-card-icon\"\u003e🌍\u003c\/div\u003e\n\u003cp class=\"dm9-card-title\"\u003ePoor Ground Fault Detection\u003c\/p\u003e\n\u003cp class=\"dm9-card-desc\"\u003eDetect poor ground connections — one of the most common causes of intermittent electrical faults\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"dm9-card\"\u003e\n\u003cdiv class=\"dm9-card-icon\"\u003e🔥\u003c\/div\u003e\n\u003cp class=\"dm9-card-title\"\u003eShort Circuit Troubleshooting\u003c\/p\u003e\n\u003cp class=\"dm9-card-desc\"\u003eLocate short circuits and overcurrent faults quickly — with built-in dual safety protection\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"dm9-card\"\u003e\n\u003cdiv class=\"dm9-card-icon\"\u003e💡\u003c\/div\u003e\n\u003cp class=\"dm9-card-title\"\u003eIndicator \u0026amp; Wiring Tests\u003c\/p\u003e\n\u003cp class=\"dm9-card-desc\"\u003eTest automotive indicator lights and wiring harness integrity for complete circuit diagnosis\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"dm9-card\"\u003e\n\u003cdiv class=\"dm9-card-icon\"\u003e🔌\u003c\/div\u003e\n\u003cp class=\"dm9-card-title\"\u003eOpen \/ Closed Circuit Test\u003c\/p\u003e\n\u003cp class=\"dm9-card-desc\"\u003eVerify whether circuits are open or closed — essential for relay, switch and actuator diagnosis\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Component Activation Modes --\u003e\n  \u003cp class=\"dm9-section-title\"\u003e3 Component Activation Modes\u003c\/p\u003e\n  \u003cdiv class=\"dm9-activation-grid\"\u003e\n    \u003cdiv class=\"dm9-act-card\"\u003e\n      \u003cp class=\"dm9-act-num\"\u003eMode 1\u003c\/p\u003e\n      \u003cp class=\"dm9-act-title\"\u003eDirect Drive\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"dm9-act-card\"\u003e\n      \u003cp class=\"dm9-act-num\"\u003eMode 2\u003c\/p\u003e\n      \u003cp class=\"dm9-act-title\"\u003ePWM Signal\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"dm9-act-card\"\u003e\n      \u003cp class=\"dm9-act-num\"\u003eMode 3\u003c\/p\u003e\n      \u003cp class=\"dm9-act-title\"\u003ePulsed Output\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"dm9-info\"\u003e\n    ⚡ \u003cstrong\u003eComponent Activation Benefit:\u003c\/strong\u003e By directly driving components — relays, fuel injectors, solenoids, actuators — without running the engine, the DM109 helps technicians quickly determine whether a fault lies with the \u003cstrong\u003ecomponent itself, the wiring, or the ECU\u003c\/strong\u003e. This reduces unnecessary part replacement and speeds up diagnosis significantly.\n  \u003c\/div\u003e\n\n  \u003c!-- Smart Features --\u003e\n  \u003cp class=\"dm9-section-title\"\u003eSmart Features\u003c\/p\u003e\n  \u003cdiv class=\"dm9-grid\"\u003e\n    \u003cdiv class=\"dm9-card\"\u003e\n\u003cdiv class=\"dm9-card-icon\"\u003e🧠\u003c\/div\u003e\n\u003cp class=\"dm9-card-title\"\u003eSmart Range Recognition\u003c\/p\u003e\n\u003cp class=\"dm9-card-desc\"\u003eAutomatically identifies voltage and resistance range — no manual switching needed for faster, error-free testing\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"dm9-card\"\u003e\n\u003cdiv class=\"dm9-card-icon\"\u003e🖥️\u003c\/div\u003e\n\u003cp class=\"dm9-card-title\"\u003e2.8\" IPS Colour Display\u003c\/p\u003e\n\u003cp class=\"dm9-card-desc\"\u003eClear true-colour display readable in both bright daylight and dim workshop conditions\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"dm9-card\"\u003e\n\u003cdiv class=\"dm9-card-icon\"\u003e💡\u003c\/div\u003e\n\u003cp class=\"dm9-card-title\"\u003eLED Auxiliary Lighting\u003c\/p\u003e\n\u003cp class=\"dm9-card-desc\"\u003eBuilt-in LED light eliminates the need for a separate flashlight when inspecting circuits in dark areas\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"dm9-card\"\u003e\n\u003cdiv class=\"dm9-card-icon\"\u003e🔄\u003c\/div\u003e\n\u003cp class=\"dm9-card-title\"\u003eFirmware Upgradeable\u003c\/p\u003e\n\u003cp class=\"dm9-card-desc\"\u003eConnect to a PC to install firmware updates — continuous feature additions and improvements over time\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Dual Safety Protection --\u003e\n  \u003cdiv class=\"dm9-safety\"\u003e\n    🛡️ \u003cstrong\u003eDual Safety Protection:\u003c\/strong\u003e The DM109 is equipped with a \u003cstrong\u003e20A fuse and intelligent circuit breaker\u003c\/strong\u003e. When a short circuit or overload is detected, the device automatically disconnects the circuit — protecting both the tester and the vehicle's electrical system. Essential for safe operation on modern high-voltage vehicles.\n  \u003c\/div\u003e\n\n  \u003c!-- Technical Specifications --\u003e\n  \u003cp class=\"dm9-section-title\"\u003eTechnical Specifications\u003c\/p\u003e\n  \u003ctable class=\"dm9-spec-table\"\u003e\n    \u003ctr\u003e\n\u003ctd\u003eProduct Name\u003c\/td\u003e\n\u003ctd\u003eAUTOOL DM109 Automotive Circuit System Tester\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDisplay\u003c\/td\u003e\n\u003ctd\u003e2.8-inch IPS true colour display\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eWorking Voltage\u003c\/td\u003e\n\u003ctd\u003e9V minimum — 72V maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMaximum Measuring Voltage\u003c\/td\u003e\n\u003ctd\u003e100V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMinimum Measuring Voltage\u003c\/td\u003e\n\u003ctd\u003e0.1V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCurrent Measuring Range\u003c\/td\u003e\n\u003ctd\u003e0 – 18A (maximum continuous 18A)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eResistance Measurement\u003c\/td\u003e\n\u003ctd\u003e1Ω – 10MΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTemperature Measurement\u003c\/td\u003e\n\u003ctd\u003e-20°C to 600°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCompatible Vehicle Voltages\u003c\/td\u003e\n\u003ctd\u003e12V \/ 24V \/ 36V \/ 48V \/ 72V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eVehicle Types\u003c\/td\u003e\n\u003ctd\u003ePetrol, diesel, hybrid, electric vehicles, engineering vehicles\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eComponent Activation Modes\u003c\/td\u003e\n\u003ctd\u003e3 modes\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSafety Protection\u003c\/td\u003e\n\u003ctd\u003e20A fuse + intelligent circuit breaker\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eWorking Temperature\u003c\/td\u003e\n\u003ctd\u003e-20°C to 60°C (-4°F to 140°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to 70°C (-40°F to 185°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eFirmware Upgrade\u003c\/td\u003e\n\u003ctd\u003eVia PC — continuous updates\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\n  \u003c!-- Key Benefits --\u003e\n  \u003cp class=\"dm9-section-title\"\u003eKey Benefits at a Glance\u003c\/p\u003e\n  \u003cul class=\"dm9-checklist\"\u003e\n    \u003cli\u003e4 tools in 1 — multimeter, oscilloscope, component activation and signal simulation\u003c\/li\u003e\n    \u003cli\u003eWide 9–72V voltage range covers petrol, diesel, hybrid, EV and commercial vehicles\u003c\/li\u003e\n    \u003cli\u003eSmart range recognition — automatic voltage and resistance identification, no manual switching\u003c\/li\u003e\n    \u003cli\u003e3 component activation modes to pinpoint faults in components, wiring or ECU\u003c\/li\u003e\n    \u003cli\u003eDual safety protection — 20A fuse + intelligent circuit breaker\u003c\/li\u003e\n    \u003cli\u003e2.8\" IPS colour display with LED auxiliary lighting for dark environments\u003c\/li\u003e\n    \u003cli\u003eStandard multimeter probe compatible for flexible testing configurations\u003c\/li\u003e\n    \u003cli\u003eFirmware upgradeable via PC for ongoing feature improvements\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003c!-- Note --\u003e\n  \u003cdiv class=\"dm9-note\"\u003e\n    \u003cstrong\u003eNote:\u003c\/strong\u003e The AUTOOL DM109 is a professional automotive electrical circuit testing tool. It is intended for use by qualified automotive technicians and workshops familiar with vehicle electrical systems. Always follow appropriate safety procedures when working with vehicle electrical circuits.\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c!-- ===== END OF PRODUCT DESCRIPTION ===== --\u003e","brand":"Autool","offers":[{"title":"Default Title","offer_id":54105206161603,"sku":"AUTDM109","price":339.0,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0599\/3303\/2643\/files\/20261022-134024.jpg?v=1792648236","url":"https:\/\/fairtools.co.nz\/products\/autool-dm109-automotive-circuit-system-tester-multimeter-oscilloscope","provider":"FairTools","version":"1.0","type":"link"}