🔌 Sigmaprobe Automotive Circuit Tester - 5-12-30 Volt Trailer Wiring Fuse Continuity Test Light with Digital LED Display for Cars, Electric Vehicles, and Motorcycles Review

【3 Working Modes】Fast test mode, Computer-safe mode, bulb mode, You can choose LED digital display and the bulb mode work at the same time, or either of them works, to test voltage and accurately diagnose faulty battery or fuse circuit. Meet the needs of different scenarios. 【LED Digital Display & Reverse Polarity Test】 The test light comes with a bright LED digital voltage display for accurate and fast voltage readout, which can be clearly seen during the day and night. After connecting the tester to the power supply, the red light indicates positive polarity and the green light indicates negative polarity. 【Large Alligator Clip & Auxiliary Probe】The large alligator clip can be connected to the negative or positive ground, which is convenient for clipping the battery head and the body hook. The auxiliary probe is easily inserted into the plug under test at the same time as the main probe. 【Frequency Prediction & Pulse Signals Measurment】Test light automotive can be used to measure fuel injector signals, spark plugs, crankshaft sensor signals. When auto circuit tester is connected to an AC signal(5-30V), frequency range can be estimated through the digital led display. 【Material Design】The electrical tester pen body is made of PVC material, which is durable and non-slip. The probe made of stainless steel is durable and detachable. 【What You Get】Sigmaprobe SP1 Automotive Test light, welcome guide, our worry-free 18-month warranty, and friendly customer service.