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2. 7 Best Alarm Clocks for Heavy Sleepers, According to a Sleep ...

   www.aol.com/lifestyle/7-best-alarm-clocks-heavy...

   Shop the best loud alarm clocks for heavy sleepers on Amazon and more that are recommended by our editor, who tested several of them, and a sleep psychologist.

3. Panic button - Wikipedia

   en.wikipedia.org/wiki/Panic_button

   A personal safety alarm starts sounding once the emergency button is pressed. A personal alarm is a small hand-held electronic device with the functionality to emit a loud siren-like alarming sound. It is activated either by a button, or a cord that, when pulled, sets the siren off.

4. Chrysler Air-Raid Siren - Wikipedia

   en.wikipedia.org/wiki/Chrysler_Air-Raid_Siren

   Siren at the Walter P. Chrysler Museum in 2011. The Chrysler Air Raid Siren is an outdoor warning siren produced during the Cold War era that has an output of 138 dB(C) at 100 feet.

5. Alarm clock - Wikipedia

   en.wikipedia.org/wiki/Alarm_clock

   This is an accepted version of this page This is the latest accepted revision, reviewed on 27 December 2024. Type of clock A traditional wind-up (key-wound), mechanical spring-powered alarm clock An alarm clock or alarm is a clock that is designed to alert an individual or group of people at a specified time. The primary function of these clocks is to awaken people from their night's sleep or ...

6. Siren (alarm) - Wikipedia

   en.wikipedia.org/wiki/Siren_(alarm)

   There are 8,200 alarm sirens for civil protection throughout Switzerland. They are tested once a year, on the first Wednesday in February. [1] Sound sample ⓘ An 1860s-era siren. [2] A siren is a loud noise-making device. There are two general types: mechanical and electronic.

7. These sleek personal alarms are made for women, by women - AOL

   www.aol.com/lifestyle/sleek-personal-alarms-made...

   These petite personal alarms emit a loud siren and strobe light when triggered. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ...