Technical Features: At present、 there are two modes for the detection of automobile circuit: one is to detect automobile circuit with conventional multimeter.Under the situation of automobile circuit with bad contact or aging wires、 the test results are normal but fail to describe accurate and actual faults.It has great limitation during actual use. The other is to detect automobile circuit with test lamp、 the traditional tool fails to measure line voltage、 because its operation time is long、 it is not easy to operate in too narrow place、 moreover、 the probe easily pricks hands、 and it is very inconvenient to operate in winter or at night.The tester with good rubber cover can accurately detect the fault location of automobile circuit. The set multi-functional gears can be used for the detection of multiple faults.Furthermore、 you can operate it at your will in dark and narrow place. Without other lighting facilities、 it is safe、 convenient and efficient to use.It is applicable to each maintenance environment. Therefore、 it is a good assistant of automobile decorations and circuit repairingPackaging contents:1 x Automobile circuit detector tester2 x test pencils1 x Manual1 x clip