1. When testing the components, without damaging the circuit, it can be adjusted directly from the rear of the harness plug terminal to reduce the damage of the circuit insulation rubber, thereby reducing the increase in impedance caused by the rust of the circuit. 2. Applicable to any electric meter, oscilloscope probe extension cord, reducing the trouble of wiring when checking the line, and helping you to quickly detect. 3. When measuring the current, there is no need to short or pull the wires apart, and the connection of the wire group can be used to achieve a series loop. 4. Equipped with two sets of LED lights, it can monitor the control signals of actuators such as Hall, photoelectric signals, fuel injectors, solenoid valves, and automatic transmission shift solenoid wires. 5. SRS replaces resistors, which can simulate airbags and seat belt tensioners to avoid accidents and misjudgments during maintenance. 6. Packing list: - 5K Ohm variable resistor x 2 - LED stroboscope x 2 - Airbag system connector x 2 - 1 to 2 connector x 2 - Adapter 1 pair 1 x 4 - Needle probe x 4 - Alligator clip x 2 - Round terminal x 24 - Flat terminals x 48 - Probe x 2