The logistics required for a hydrogen fuel supply make this a silly idea.
But all you need is one of these:
Seriously, after working with Flame Ionization Detectors in remote locations, it would be a real pain.
Liquid H2 requires unreal logistics (beyond anything that we did or wanted to).
Cylinders of compressed H2 have their problems:
It doesn't store well, the Hydrogen leaks through the cylinder wall under pressure.
Rapid decompression (like someone damaging a valve on a cylinder or a high pressure leak) will commonly cause the hydrogen to autoignite.
It burns with a clear flame (you can't see it, but it will do serious damage if you walk into it or get a limb in there).
Explosive range in air: from 4% to 74%. Yeah, Hindenburg and all that.
Even more fun things to know about Hydrogen are
here (different from our application).
A fuel dump in the desert? Just send me to Thule...