Simplify complex automotive electrical diagnostics with this multi-function circuit tester designed for 12V and 24V systems. Its standout feature allows you to safely activate components—like relays or fans—using positive or negative voltage directly from the tool, eliminating the need for extra jumper wires. This speeds up troubleshooting significantly.
This tester lets you quickly verify voltage, polarity, continuity, and check for short or open circuits. It’s also capable of locating misfiring cylinders and measuring ignition pulse frequency. For the professional mechanic or serious DIYer working on vehicle electrics, this durable tool provides the necessary control and diagnostic depth to pinpoint faults efficiently and correctly, backed by a one-year warranty