Hank and Ben respond to their Warning Alarm.[1]

An alarm device is device that is meant to alert someone to danger, which is often outfitted with a bell or siren. For example, the Trouble Alert is an alarm that alerts the Super Friends to emergencies throughout the Earth. Certain clocks can also have an alarm to awaken someone from sleep.

The warning alarm in Hank and Ben's Blue Jet sounded like a bell, and it alerted them to an approaching aircraft; which was the invisible jet.[2]

According to Wendy Harris, the Vanderbulge Mansion was equipped with the most advanced electronic burglar alarm system in the world.[3]


  1. As seen in The Ultra Beam (1973).
  2. As seen in The Ultra Beam.
  3. As seen in Gulliver's Gigantic Goof.

External Links

Community content is available under CC-BY-SA unless otherwise noted.