Features 1、This automobile igniter probe is a kind of inductive capacitor probe which must be used in conjunction with oscilloscope 2、Can be used to test a spark ignition secondary overlapping wave, overlapping wave parameters, thus achieved the detection, the diagnosis engine ignition position 3、Making each cylinder ignition voltage changing with time directly from the oscilloscope display 4、This pickup line has three end, one is BNC for connecting oscilloscope, one is clip for grounding connection, one is pickup clip,used for connecting the high voltage line 5、Pickup clip is a attenuator, used for picking up high-pressure attenuation for low pressure, thus protecting the oscilloscope from electrical shock Specification Features: This automobile igniter probe is a kind of inductive capacitor probe which must be used in conjunction with oscilloscope. Can be used to test a spark ignition secondary overlapping wave, overlapping wave parameters, thus achieved the detection, the diagnosis engine ignition position. Pickup clip is a attenuator, used for picking up high-pressure attenuation for low pressure, thus protecting the oscilloscope from electrical shock. Specifications: Cable length: 250cm/98.42inch Weight: 155g When used please note: (3)The attenuation of HT25A can reach 5000:1; The main lead line of HT25B is 2.5 meter long, and the attenuation can reach 10000:1. Package Included: 1 x HT25 Auto ignition probe Package List