Autool DM303 Multimeter

The Autool DM303 is an advanced automotive multimeter that combines the functionalities of a digital multimeter and an oscilloscope. With a measurement range up to 1000V DC and 700V AC, and a current measurement range up to 20A, this device is suitable for various applications in vehicle electronics. The DM303 features a 2.8-inch color screen with a resolution of 320x240 pixels, providing a clear display of measurement results. Thanks to True RMS technology and automatic range selection, the multimeter offers accurate measurements without manual adjustments.

In addition to standard measurement functions, the DM303 also offers oscilloscope functionality with a bandwidth of 500 kHz, enabling the analysis of rapidly changing signals in vehicles. The device supports multiple languages, including Dutch, and comes with various accessories, such as test leads and test probes, for extensive diagnostic capabilities.

Functions:

• Voltage measurement (DC/AC): Measures DC voltage from 0 to 1000V and AC voltage from 0 to 700V.

• Current measurement (DC/AC): Measures current up to 20A and 200mA for both DC and AC.

• Resistance measurement: Measures resistance up to 1 MΩ.

• Frequency measurement: Measures frequencies from 1 Hz to 1 MHz.

• Diode and continuity test: Checks diodes and circuit continuity with acoustic signaling.

• Oscilloscope function: Analyzes signals with a bandwidth up to 500 kHz for observing various vehicle sensors and signals.

• Ignition diagnosis: Detects ignition pulses and calculates engine speed based on cylinder configuration.

• Start test: Evaluates battery voltage during starting; voltages below 9.6V may indicate an aged battery.

• Injector and relay diagnosis: Tests electromagnetic injectors and relays, including GDI injectors (not suitable for 120V injectors).

• Analog signal simulation: Generates 5V square waves, 5Vpp sine waves, and 12V square waves for testing ECUs and other components.

• K- and CAN-bus signal analysis: Reads and analyzes K-line and CAN-bus signals for comprehensive vehicle diagnostics.

Special features:

• True RMS & Auto Range: Provides accurate measurements with automatic range selection for ease of use.

• Built-in LED lighting: Illuminates the test area for better visibility in dark environments.

• Compact and portable design: Comes with a sturdy carrying case for easy transport and storage.

Package contents:

• Carool DM303 Multimeter

• Test probe (Red)

• Test probe (Black)

• Manual

• Storage case

• Carool Battery Clamps

• Carool Test Leads

• Autool Car Circuit Test Cable

• Carool Ignition Signal Pulse Detection Line

• Carool Ignition Signal Detection Line

Technical specifications