BBQ ignitor

A BBQ ignitor or grill ignitor is arguably the simplest spudgun ignition source. It consists of a pushbutton, activating a hammer mechanism that strikes a piezoelectric crystal. The crystal generates a high voltage pulse that can be made to jump a small spark gap. One of the main advantages to a BBQ ignitor is that it doesn't use batteries, and is cheap and relatively small. Quality differes quite a bit though, some ignitors last for many years while other break after some time of use. The spark is also the weakest of the common ignition sources, and achieving ignition may take several attempts in some circumstances (cold weather, sub-optimal fuel mixes, etc). Piezoelectric ignitors can also be obtained from a few other devices, notably long-nosed lighters, and some gas ignitors and cigarette lighters.

Note: There are electric BBQ ignitors that run on 1.5v or 9v, they are weak but a good choice for remote ignition.