Professional Circuit Tester for All 9-30V Electrical SystemsThis latest generation of circuit breaker finder has many ways to not only read the unit and diagnose electrical issues but can also inject different frequencies and signals to determine and troubleshoot any problem areas. This upgraded Power Circuit Probe Tester Kit is dedicated to testing all 9-30V vehicle electrical systems, including cars, off-road vehicles, motorcycles, trailers, trucks, boats, ATVs, RVs, excavators, etc. Oscilloscope Mode & Fuel Injector Test & Relay TestThe oscilloscope mode of the circuit tester can display the voltage, frequency, time and other parameter curves of the component under test.
The power circuit probe kit provides 4 kinds of pulse signals to better detect the condition of the fuel injector. It also can be worked with any fuel pressure tester. This power circuit probe tester kit can quickly detect whether common relays are normal, such as 5-terminal relay and 4-terminal relay. Self-check Function&Circuit Breaker Protection&Buzzer PromptBefore using the automotive circuit tester, the quick self-check function of the probe can ensure that the tester is in good condition. The circuit breaker protection can protect the tool and your components from overload. The electric circuit tester is also equipped with a voltage setting prompt.
If a short circuit or fault causes the output voltage to be greater than or less than the set value of 0.1V, the device will beep.