RCEXL Ignition Tester Kit For Single Twin V IL 3w 3 4 5 7 and 9 Cylinder

What's in the box 1. RCEXL Ignition Tester Kit For Single Twin V IL 3w 3 4 5 7 and 9 Cylinder Supported ignition Single, Twin, V, InLine, 3w, 3, 4, 5, 7 and 9 Cylinder Ignition. guide Plug your Single and Twin Cylinder CDI / Ignition Uint sensor in to the 3 pin port Plug your Single, Twin, V, InLine, 3w, 3, 4, 5, 7 and 9 Cylinder Ignition Uint CDI / Ignition Unit sensor in to the 4 pin port. Then press SELECT button to change the ignition type. Adjust RPM knob can change the ignition frequency.