Personal alarm

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 tag that, when pulled, sets the siren off.[1]

A personal safety alarm starts sounding once the emergency button is pressed.

It is used to attract attention in order to scare off an assailant.[2] The sound emitted can also have the effect of distracting, disorienting, or surprising the assailant.

The volume varies from model to model, with some models having 130 decibels. Some personal alarms are also outfitted with an LED light for normal lighting purposes or to help deter an assailant. Due attention must be given to the fact that these devices can give a 'false sense of security' and therefore place the individual in danger.

Some personal safety apps emit a loud intermittent "shrill whistle", in the manner of a personal alarm.[3]

Usage

According to the Suzy Lamplugh Trust, the best way to use a personal alarm is to activate it, to drop it on the floor near the assailant, and then to immediately run away.[4]

gollark: How does it detect muons?
gollark: You just have two particles where, if one has property X, the other is known to have the opposite property, is my very limited understanding.
gollark: I don't think that's how entanglement works either.
gollark: I think these are more targeted at computer things where you can deal with piecewise functions or whatever more easily, but still interesting.
gollark: https://datagenetics.com/blog/july12019/index.html

See also

References
  1. http://www.dlf.org.uk/factsheets/telecare
  2. http://devconhomesecurity.com/blog/looking-personal-alarms-elderly-heres-consider
  3. Distress apps: How safe?
  4. "Personal alarms". London, England: Suzy Lamplugh Trust. Archived from the original on 2019-05-09. Retrieved 2017-12-28.


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