AUTOOL DM303 Digital Multimeter Car Circuit Tester

AUTOOL DM303 is a handheld automotive diagnostic multimeter that integrates a digital multimeter, oscilloscope, automotive circuit tester, cranking test, injector test, relay test, analog signal output, ignition pulse test, and K/CAN line data reading for vehicle electrical diagnosis. DM303 and DM301 are shipped without batteries. Confirm the battery type before use, and do not charge dry batteries inside the device. DM303 is the more advanced choice if you need more automotive diagnostic modes, more wiring options, injector and relay tests, cranking test, analog signal output, automotive circuit testing, and K/CAN related line data checks. DM303 combines standard electrical measurement with vehicle-focused circuit and signal tests, helping technicians check voltage, current, resistance, frequency, waveforms, starting voltage, injectors, relays, ignition signals, analog output, and K/CAN line data. DM303 supports wide voltage, current, resistance, and frequency ranges, plus automotive circuit drive current and injector drive signal output for vehicle electrical diagnosis. The packing list image shows the DM303 main unit, manual, retail box, portable toolbox, and multiple test leads. Batteries are not included and need to be purchased separately. Key features • K/CAN Test: Supports K/CAN signal testing alongside circuit diagnosis. • Oscilloscope Mode: Built-in oscilloscope helps inspect live automotive signals. • Injector Test: Covers injector, cranking, and analog signal checks in one unit. • Product: AUTOOL DM303 Auto Diagnostic Multimeter • Display: 2.8-inch color screen • Voltage Measurement Range: DC 0-1000V, AC 0-700V