http://www.streetfire.net/video/StreetL ... 737329.htm

It sounded like he was suggesting that the first unit calculates bottle pressure by temp? That doesnt sound right...

Nifty unit though. I cant see myself ever using something like that but cool none-the-less.

If you wanted to be ghetto, you could use the heating element out of an old seat heater, wire it up and wrap the whole thing in insulation for safety. Not that there's really anything safe about n20, you'd still need to monitor bottle pressure in some way.