[BigV]

Fuel's included, nice. I wonder if a broom is standard equipment as well.

The technology was developed by John C. Stennis Space Center to visually assess the presence, location, and extent of hydrogen fires. The need for such equipment was generated by the center's use of more than one million gallons of liquid hydrogen per month in its rocket engine test programs. Indeed, hydrogen fires are a significant risk.
Previously, firefighters responding to a hydrogen fire had to give the suspect area "the broom test" by carefully probing the suspect area with a corn straw broom to determine the presence and location of a fire. This technique has significant safety and accuracy shortfalls, particularly in windy outdoor conditions where flames can easily change direction.