{"product_id":"autool-dm303-multimeter","title":"Autool DM303 | Multimeter","description":"\u003cdiv style=\"font-family:sans-serif; line-height:1.6; color:#374151; font-size:15px;\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eAutool DM303\u003c\/strong\u003e is a diagnostic \u003cstrong\u003eautomotive multimeter\u003c\/strong\u003e that combines the functions of a multimeter, oscilloscope, and signal generator in one compact unit. All measurements and waveforms are displayed on a 2.8-inch color screen. Operation is via a physical keypad with clearly labeled function buttons.\u003c\/p\u003e\n\u003cp\u003eBeyond standard measurements like voltage, current, and resistance, this tool features specialized \u003cstrong\u003eautomotive diagnostic functions\u003c\/strong\u003e. The built-in oscilloscope offers a bandwidth of \u003cstrong\u003e500 kHz\u003c\/strong\u003e for analyzing sensor signals. The signal generator produces sine and square waves to simulate ECU signals. Dedicated test modes for \u003cstrong\u003efuel injectors, relays, ignition system, starter circuit, and K\/CAN-bus\u003c\/strong\u003e data analysis enable targeted diagnostics.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:20px; margin:30px 0; align-items:stretch;\"\u003e\n\u003cdiv style=\"flex:1; min-width:250px; background:#ffffff; border:1px solid #e5e7eb; border-radius:8px; padding:20px;\"\u003e\n\u003ch3 style=\"color:#166534; text-transform:uppercase; font-size:13px; font-weight:800; border-bottom:2px solid #22c55e; padding-bottom:10px; margin-top:0;\"\u003eKEY FEATURES\u003c\/h3\u003e\n\u003cdiv style=\"display:flex; align-items:flex-start; margin-bottom:12px;\"\u003e\n\u003cspan style=\"color:#16a34a; font-weight:900; margin-right:10px; font-size:16px;\"\u003e✔\u003c\/span\u003e\u003cspan style=\"font-size:14px; color:#4b5563; line-height:1.6;\"\u003e\u003cstrong\u003e3-in-1 design (multimeter + oscilloscope + signal generator)\u003c\/strong\u003e — everything in one portable device.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; align-items:flex-start; margin-bottom:12px;\"\u003e\n\u003cspan style=\"color:#16a34a; font-weight:900; margin-right:10px; font-size:16px;\"\u003e✔\u003c\/span\u003e\u003cspan style=\"font-size:14px; color:#4b5563; line-height:1.6;\"\u003e\u003cstrong\u003eAutomotive-specific test modes\u003c\/strong\u003e — injector, relay, ignition pulse, starter cranking, and K\/CAN-bus analysis.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; align-items:flex-start; margin-bottom:12px;\"\u003e\n\u003cspan style=\"color:#16a34a; font-weight:900; margin-right:10px; font-size:16px;\"\u003e✔\u003c\/span\u003e\u003cspan style=\"font-size:14px; color:#4b5563; line-height:1.6;\"\u003e\u003cstrong\u003e2.8\" color display\u003c\/strong\u003e — waveforms and measurements clearly visible at a glance.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:250px; background:#ffffff; border:1px solid #e5e7eb; border-radius:8px; padding:20px;\"\u003e\n\u003ch3 style=\"color:#991b1b; text-transform:uppercase; font-size:13px; font-weight:800; border-bottom:2px solid #ef4444; padding-bottom:10px; margin-top:0;\"\u003eLIMITATIONS TO CONSIDER\u003c\/h3\u003e\n\u003cdiv style=\"display:flex; align-items:flex-start; margin-bottom:12px;\"\u003e\n\u003cspan style=\"color:#dc2626; font-weight:900; margin-right:10px; font-size:16px;\"\u003e✕\u003c\/span\u003e\u003cspan style=\"font-size:14px; color:#4b5563; line-height:1.6;\"\u003e\u003cstrong\u003e500 kHz oscilloscope bandwidth\u003c\/strong\u003e — adequate for sensor signals, but not a replacement for a lab-grade scope.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; align-items:flex-start; margin-bottom:12px;\"\u003e\n\u003cspan style=\"color:#dc2626; font-weight:900; margin-right:10px; font-size:16px;\"\u003e✕\u003c\/span\u003e\u003cspan style=\"font-size:14px; color:#4b5563; line-height:1.6;\"\u003e\u003cstrong\u003eOperating temperature 0-40 °C\u003c\/strong\u003e — do not use outside this range.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; align-items:flex-start; margin-bottom:12px;\"\u003e\n\u003cspan style=\"color:#dc2626; font-weight:900; margin-right:10px; font-size:16px;\"\u003e✕\u003c\/span\u003e\u003cspan style=\"font-size:14px; color:#4b5563; line-height:1.6;\"\u003e\u003cstrong\u003eFor general True RMS measurements\u003c\/strong\u003e — consider the DM400 as a standalone multimeter with higher CAT rating.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr style=\"border:0; border-top:1px solid #e5e7eb; margin:40px 0;\"\u003e\n\u003ch2 style=\"border-left:5px solid #006aff; padding-left:15px; font-weight:800;\"\u003eApplications and Functionality\u003c\/h2\u003e\n\u003cp\u003eDesigned for diverse measurements and testing of vehicle electronic systems. Primary functions:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultimeter capabilities:\u003c\/strong\u003e DC\/AC voltage, current, and resistance measurements in electrical circuits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOscilloscope:\u003c\/strong\u003e Visualizes signals from camshaft, crankshaft, and wheel speed sensors up to 500 kHz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal generator:\u003c\/strong\u003e Sine and square wave output for simulating sensor signals and testing ECU response.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCranking Test:\u003c\/strong\u003e Voltage drop and starter circuit performance during engine start.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjector Test:\u003c\/strong\u003e Simulates drive signals to verify injector operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelay Test:\u003c\/strong\u003e Relay functionality and switching performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Pulse Test:\u003c\/strong\u003e Analysis of ignition system signals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eK\/CAN-line Data:\u003c\/strong\u003e Reading K-line and CAN-bus networks for communication diagnostics.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr style=\"border:0; border-top:1px solid #e5e7eb; margin:40px 0;\"\u003e\n\u003ch2 style=\"border-left:5px solid #006aff; padding-left:15px; font-weight:800;\"\u003eMeasurement Ranges and Functions\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Voltage:\u003c\/strong\u003e 0 – 1000 V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC Voltage:\u003c\/strong\u003e 0 – 700 V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent:\u003c\/strong\u003e 0 – 20 A and 0 – 200 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResistance:\u003c\/strong\u003e 0 – 1 MΩ\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency:\u003c\/strong\u003e 1 Hz – 1 MHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjector Drive Signal:\u003c\/strong\u003e 500 – 6000 RPM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCircuit Drive Current:\u003c\/strong\u003e 0 – 5 A\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr style=\"border:0; border-top:1px solid #e5e7eb; margin:40px 0;\"\u003e\n\u003ch2 style=\"border-left:5px solid #006aff; padding-left:15px; font-weight:800;\"\u003ePackage Contents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x\u003c\/strong\u003e Autool DM303 multimeter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x\u003c\/strong\u003e Multi-function detection line (C01)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x\u003c\/strong\u003e Vehicle circuit detection line (C02)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x\u003c\/strong\u003e Ignition signal detection line\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x\u003c\/strong\u003e Battery clamp cable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x\u003c\/strong\u003e Jumper set (yellow)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x\u003c\/strong\u003e Jumper set (green)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x\u003c\/strong\u003e Set jumpers (black)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x\u003c\/strong\u003e Test probe\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x\u003c\/strong\u003e Carrying case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1x\u003c\/strong\u003e User manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr style=\"border:0; border-top:1px solid #e5e7eb; margin:40px 0;\"\u003e\n\u003ch2 style=\"border-left:5px solid #006aff; padding-left:15px; font-weight:800;\"\u003eTechnical specifications\u003c\/h2\u003e\n\u003cstyle\u003etable.specs-table{width:100%;border-collapse:collapse}table.specs-table th,table.specs-table td{border:1px solid #ccc;padding:10px;vertical-align:top;text-align:left}table.specs-table th{background-color:#f8f8f8;font-weight:bold;width:25%;white-space:nowrap}\u003c\/style\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAutool\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDM303\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAutomotive diagnostic multimeter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.8-inch color screen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOscilloscope bandwidth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e500 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≥2 MΩ (below 160V), 10 MΩ (above 160V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDC voltage range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 – 1000 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC voltage range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 – 700 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 – 20 A \/ 0 – 200 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResistance range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 – 1 MΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 Hz – 1 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnections\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard test leads, SD card slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 – 40 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e190 x 85 x 33 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecial Features\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSignal generator, K\/CAN-bus analysis, injector\/relay\/starter test\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Autool","offers":[{"title":"Default","offer_id":51271527563571,"sku":"DM303","price":139.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0912\/5874\/9235\/files\/Autool-DM303-Multimeter.webp?v=1779284257","url":"https:\/\/www.astools.eu\/products\/autool-dm303-digital-multimeter","provider":"AsTools","version":"1.0","type":"link"}