Jay Honeck wrote:

However, the original poster is looking for a portable,
outdoors-parked-on-the-ramp solution. The temperature cube wouldn't work
for that, AFAIK.

The life expectancy of a generator left unattended at my tiedown would be about
15 seconds after the first passerby noticed it.

George Patterson
If you're not part of the solution, you can make a lot of money prolonging
the problem.