1, [high quality] : automobile circuit tester probe is made of metal, used for threading, with a clip, convenient one-handed operation. In addition, it can reach narrow areas that are difficult to reach. ABS body provides superior durability to other products because it is shatterproof. The top-of-the-line 47-inch PU wire provides insulation, wear resistance and tensile strength to test the car's light. 2, [wide application] : 12V auto screwdriver test light, widely used circuit test, suitable for circuits on the car, the auto tester can also be used for other 12V circuit test, including battery test, headlight test, brake light test, fault connection and injector signal test. 3. [Test light bulb] : This LED test light circuit test light bulb has high visibility and long service life. It can indicate the state of the circuit. The top 3W tube brightness can change with the measurement voltage, replaceable. 4, [two-way test] : circuit breaker tester clip can be connected to the negative or positive grounding, probe contact the other side. The red light is on for positive connection and the green light is on for negative connection. Material: plastic colour: As shown Package Contents: 2 x Probe 1 x Test Light Pen 1 x Detector 1 x Bulb Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.