This coil-on plug tester verifies ignition firing without the need for back-probing wires or component disassembly. The battery-operated tool utilizes a 7-inch (17.8 cm) antenna probe and a variable sensitivity thumb-wheel to detect spark activity through the coil housing. Integrated indicators include a bright LED strobe to signal sufficient kV and a green LED to confirm arc duration, allowing for the immediate identification of consistent firing, intermittent misfires, or complete coil failure.

This coil-on plug tester verifies ignition firing without the need for back-probing wires or component disassembly. The battery-operated tool utilizes a 7-inch (17.8 cm) antenna probe and a variable sensitivity thumb-wheel to detect spark activity through the coil housing. Integrated indicators include a bright LED strobe to signal sufficient kV and a green LED to confirm arc duration, allowing for the immediate identification of consistent firing, intermittent misfires, or complete coil failure.