Product Description:With the increasing technical updates, the unceasing development of auto industry and the continuous renewal of auto parts and electronic components, auto circuits gradually increase, but the detection tools of maintenance telephone are very few. Automobile circuit tester excludes difficulties and anxieties for vast auto repair factories, 4S shops and auto headquarters.Multi-function Auto Circuit Tester1.It can accurately detect various line faults under the situation of no damage to rubber cover.2.It sets multimeter &testlampgearwhichhasthefunctions that the top-level multimeter fails to do. It specially detects the wires with bad contact and aging wires.3.It can detect each fault in the place where the space is narrow and light is weak.The product is the only four-in-one product with the functions of multimeter, test lamp, lighting lamp and probe.All functions of digital multimeter are intelligent. Backlight is closed automatically after the backlight of 30s. All ranges are intelligent, and the instrument shuts off automatically after the stop of use for 20min.It is convenient to use, efficient to detect, easy to operate and has reliable performance.Please pay attention to following tips before you use this tool: