Descriptions: HT30A is a kind of special line for assisting automobile measurement instruments to test various types of signals. It's about 30cm in length allows the oscilloscope to be placed on the work bench away from the car being tested or repaired. It adopts full shield which can help reduce the noise interference. To prevent wire from winding together ,the lengths of two wire with a 4 mm connector are different. The short ground wire is conveniently attached to any position in the ground, and the positive pole of the long wire can be conveniently attached to the attachment of the engine. It can also be used in conjunction with the 20:1 attenuator. It's a very convenient cable. Features: The auto test cable (HT30A) is a kind of special line for assisting automobile measurement instruments to test various types of signals. High quality and professional high voltage auto test lead. It's about 3 meter in length allows the oscilloscope to be placed on the work bench away from the car being tested or repaired. It consists of wide range probes, clips, gators can be plugged into the 4 mm connectors at the end of the cable. It adopts full shield which can help reduce the noise interference. Specifications: Input resistance: 50 Ω Length: about 3 meter /118.1inch Packing weight: 155 g Package Included: 1 x Heavy Duty Auto Test Line