TopDiag specializes in intelligent automotive diagnostic tools, including circuit testers, battery analyzers, and OBD2 scanners for cars and motorcycles.
TopDiag is a manufacturer of professional automotive diagnostic equipment, affiliated with JDiag Electronics Tech. The brand focuses on providing accessible, high-quality tools for vehicle maintenance and troubleshooting. Their highly regarded product lineup includes the P100 and P200 Power Circuit Probes, which combine the functions of a multimeter and oscilloscope to help technicians test vehicle electrical systems efficiently.
In addition to circuit testers, TopDiag offers a comprehensive range of battery testers like the BT300 and BT500, designed to analyze battery health, cranking power, and charging systems. The brand also produces specialized motorcycle scanners, such as the M100 and M200 series, which support diagnostics for a wide variety of motorcycle manufacturers. TopDiag tools are known for their rugged design, multi-language support, and intuitive interfaces suitable for both professional mechanics and DIY enthusiasts.
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If the internal circuit breaker trips due to overload, the tool will stop conducting current. Wait approximately 5 to 15 seconds for the unit to cool down, then press the reset button on the side of the device to restore functionality.
Connect the red clip to the positive terminal and the black clip to the negative terminal. Select 'Battery Test' from the menu, choose the battery type (e.g., Regular Flooded, AGM, GEL), input the CCA value, and press OK to see results including SOH, voltage, and resistance.
Yes. In DC voltage mode, you can press the rocker switch forward (positive) or backward (ground) to send current to the probe tip. This allows you to dynamicallly activate components like lights, fans, and solenoids directly.
Yes, TopDiag manufactures specific models like the M100 and M200 series designed for motorcycle diagnostics. These tools support reading codes and testing batteries for various brands including BMW, Yamaha, KTM, and Suzuki.