About this item

• 【Quick Self-Test & Overload Protection】Before you test a circuit or component, the tester can perform a quick self-test to ensure your tool is in good condition. If overloaded, the 10-amp circuit breaker within the circuit probe tester will trip and automatically disconnect the protection circuit. The circuit breaker is a valuable test tool as well as a safety measure to protect the tool from overload and make the product more long-lasting.
• 【Why Need It】With the GODIAG probe tester, you can test for continuity/polarity/voltage and ground signals/Short&Open Circuit. And most importantly, you can also use the Power Circuit Probe to check switches, relays and the on-off of diodes, fuses and circuits, activating electronic components. This probe tester can assist you in tracing problem wires and locating breaking points.
• 【Grounding Test & 20ft Long Test Lead】The electric probe circuit tester has a ground prompt device, if the LED indicator turns green and the buzzer sounds, it means the ground is good. If not, the LED remains red and does not beep. The Circuit Tester features a long 20-foot (6m) cable that allows you to test from the front to the rear of the vehicle (trucks, trailers, vessels, tractors and other vehicles that use DC circuits), so easy to check the whole electrical circuit system.
• **Engage and Assess Elements**
• To implement activation of components with a circuit tester, you generally attach the tester to the circuit and utilize the tester's features to engage or manage particular elements like relays, solenoids, or actuators. This ability to engage or manage distinct components within a circuit aids in diagnosing issues more swiftly and precisely, while also facilitating more effective repairs.
• 【LED Indicator & Buzzer】When the dc circuit tester touches the positive pole, the LED should be red and the 'beep' will become sharp; when it touches the negative pole, the LED should be GREEN and the beeping sound will become smooth, which can help you quickly identify the positive and negative polarity of the vehicle cable and plug.