This circuit tester is designed for sensitive circuits such as injector pulse, and automotive computer circuits.

Operates from 3-15V (for 6 - 12V systems). Handle glows red for positive polarity, and green for negative polarity. Supplied with 48" ground wire.

• 3 - 15V voltage range
• 75mm probe length

Quick, reliable diagnosis for all spark ignition systems, including Coil On Plug (COP) and general distributor type SPW.

Induction technology requiring no hook ups / ground wires / special adaptors.

Diagnose misfires, starting issues, damaged spark plugs / wires. Measure cylinder speed, ignition voltage, ignition time etc.

• Spark voltage (0-50,000V)
• Spark burn time (0-10ms)
• 200 to 19,999 RPM