Automotive Ignition Probe – Secondary Ignition Signal Probe for Oscilloscopes

This Automotive Ignition Probe is an inductive and capacitive sensing accessory developed for secondary ignition diagnostics when used in conjunction with an oscilloscope.

The probe allows technicians to observe spark ignition secondary waveforms, including voltage rise, burn time, and waveform overlap, providing valuable insight into ignition timing, coil performance, and cylinder condition. High-voltage ignition signals are internally attenuated to a safe low-voltage level, protecting the oscilloscope from electrical damage while maintaining waveform integrity.

Designed for close-proximity measurement, the probe clips onto insulated spark plug leads or ignition connections, enabling non-contact signal pickup without direct electrical connection. This makes it suitable for diagnosing misfires, weak spark conditions, ignition timing faults, and uneven cylinder operation.

A 2.5-metre lead length provides flexibility for use in engine bays, while the integrated grounding clip improves signal stability and measurement accuracy.

Key Applications

• Secondary ignition waveform analysis

• Misfire detection and ignition diagnostics

• Spark voltage and burn time analysis

• Cylinder-to-cylinder comparison

• Automotive oscilloscope testing

• Workshop and mobile vehicle diagnostics

Key Features

• Designed for automotive ignition diagnostics

• Measures secondary ignition waveforms

• High-voltage attenuation up to 10,000:1

• Safe for use with oscilloscopes

• Inductive and capacitive signal sensing

• Non-intrusive clamp-on measurement

• Integrated grounding clip

• Long 2.5-metre lead for engine bay access