Accurate Measurement of Flammable Gases. Combination instruments provide the flexibility to do general-purpose safety monitoring, as well as detection of very high levels of flammable gases and vapors. TODAY there are a variety of sensors used to detect flammable gases.
I saw Van Halen on the 1984 tour, there was no extra keyboard player. Ed played some keyboard on the intro into Jump and some in the middle, but stuck with the guitar for the solo. He did a solo keyboard pice as well seperately.
The video for Right Now shows Eddie Van Halen tickling the ivories. OK, so that's just the video -- maybe it's not EVH in the studio playing piano on the album. But Eddie is a classically-trained pianist (right?) -- maybe it is EVH and he records his guitar and piano parts separately for the studio albums.