Automotive Electrical System Circuit Diagnostic Tester 1. Resistance: 0 omh~500 kiloohms 2. Frequency: 10Hz~20kHz 3. Trip current: 8AMPS for 1 hour, 12AMPS for less than 1 hour, 16AMPS for less than 5sec 4. Display: 1.77-inch TFF color display (160x128 DPI) 5. Voltage testing (0-150V), continuity testing, diode testing, battery diagnostics, and direct activation of automotive components (such as fuel pumps, fans, etc.), suitable for 9-30V vehicle electrical systems 6. Using the pathfinding function, connect the probe tip to the open wire and send an acoustic signal. Use P181 to move along the wire from the probe to find the break point. 7. The circuit breaker has short-circuit protection. When an overload is detected, its internal circuit breaker will trip, effectively avoiding unnecessary failure losses caused by abnormal operation. 8. Component Activation: DC voltage mode allows direct component activation via the connection of the probe tip to the auxiliary ground wire. It can be used to activate and start components such as fuel pumps, solenoids, blowers, cooling fans, and headlights. 9. Continuous testing in resistance mode enables rapid detection of continuity in automotive electrical systems. 10. Ultra-wide voltage range, DO-150V DC voltage measurement, meeting various testing needs. 11. Equipped with dual probes, flexible and extendable, easily handling confined spaces and complex scenarios where test results are difficult to observe, enabling flexible operation. 12. Supports 9-30V vehicle electrical system testing, applicable to automobiles, trucks, excavators, and ships.