Ignition Coil Tester 2.4" LCD Automotive Actuator Drive Detector

★Streamline Your Automotive Diagnostics with the QDB-4A All-in-One Actuator & Signal TesterTired of cluttering your workbench with separate test tools for ignition coils, injectors, and PWM signals? The QDB-4A Multifunctional Automotive Actuator Tester is engineered explicitly for auto mechanics, DIY enthusiasts, and commercial technicians who demand speed, accuracy, and versatility. From basic component testing to advanced signal generation, this tool rapidly pinpoints electronic malfunctions in passenger cars, pickup trucks, motorcycles, boats, and light-duty diesel vehicles (9V–24V DC input).Key Features & Performance Highlights★ Actuator Actuation:Directly drive and analyze independent/coil-type ignition coils, 12V/24V gasoline and non-piezo diesel fuel injectors, duty-cycle solenoid valves, and fuel metering valves.★ Advanced Motor Diagnostics:Precision-test idle stepper motors, dashboard instrument motors, headlight directional motors, and urea pump motors with confidence.★ Precision PWM Signal Generator: Adjust frequency from 1Hz to 100KHz and duty cycle from 0% to 100% to simulate various automotive sensor outputs and ECU signals.★ Integrated Digital Multimeter:Conduct on-site DC voltage (0–36V) and resistance (0–1MΩ) checks in real-time, eliminating the need to constantly switch back and forth to an external multimeter.★ Enhanced Safety & ECU Protection:Equipped with smart reverse polarity and automatic overcurrent safeguards to protect both your investment and the vehicle's sensitive electronic control units.Package Contents:1x Main Tester Unit1x Battery Clip Power Cable3x PWM Test Wire3x Fuel injector testing wire3x Banana Head4x Universal wire2x 4 Pin Stepper Motor Plug1x Sensor Wire1x User Manual

• [5-in-1 Professional Diagnostic Tool] Replaces multiple single-function tools by combining an ignition coil tester, fuel Injector tester, PWM signal generator, Stepper Motor Driver, and voltage/resistance digital multimeter into one robust unit. Easily test 12V/24V gasoline and diesel injectors, ignition coil packs, fuel meter valves, solenoid valves, idle urea pump instrument motors, air conditioner rail pressure, etc.—saving workspace and tool costs
• [2.4" Display & Color Indicators] This fuel injector tester has an enlarged, high-contrast backlit screen for effortless viewing of voltage, resistance, frequency, duty cycle, and current, even in a bright garage environment. Features 4 intuitive color-coded LED mode indicators (Green-PWM / Blue-Injector / Yellow-Coil / Red-Stepper) to prevent mode confusion and help beginners speed up testing without professional skills
• [Precision Adjustable Parameters & Dual Safety Protection] The PWM signal generator is equipped with a VADJ adjustable power supply (1.1V-12V) and wide adjustable parameters: 1Hz-100KHz PWM frequency, 0%-100% duty cycle and a maximum 2A driving current to meet diverse automotive testing needs. Built-in reverse connection and overcurrent automatic protection system prevents device burnout and delicate vehicle ECU component damage caused by miswiring, ensuring safe and stable daily repair work
• [Integrated Digital Multimeter for On-Site Quick Detection] Upgraded with a digital multimeter function, supporting real-time measurement of 0-36V DC voltage and 0-1MΩ resistance. No extra multimeter is required during vehicle troubleshooting, greatly improving repair efficiency. The 12-26V wide input voltage perfectly adapts to passenger cars, pickup trucks and light-duty diesel vehicles, covering most mainstream vehicle models on the market
• [Complete Accessories & Reliable After-Sales Service] This actuator drive tester kit comes with a full set of matching accessories: main tester unit, battery clip power cable, 6 test leads, 4 universal wires, 2 idle stepper motor plugs, 3 banana plugs and 1 sensor cable. Equipped with a detailed illustrated manual to solve operation confusion for new users. We provide a 12-month official warranty and professional technical support, ensuring zero worries for purchase and use