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.
- ↑ As seen in The Ultra Beam (1973).
- ↑ As seen in The Ultra Beam.
- ↑ As seen in Gulliver's Gigantic Goof.