General Technologies Corp GTC505 Engine Ignition Analyzer - Spark Diagnostics and Tachometer Readings for Marine, Motorcycle, and Automotive Mechanics by GTC 505
Measures spark peak voltage, for finding primary and secondary coil faults
Displays ignition waveforms in real time, allowing for detailed analysis
Detects ramp time (or dwell angle), for diagnosis of timing issues and primary coil faults
Has chart and comparison functions, allowing the user to find intermittent issues
Works on all spark-ignition engines, from small 2-stroke engines with magnetos to modern cars with computer-controlled coil on plug systems