Warning system

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Warning light indicating danger of laser exposure.
Warning light indicating danger of laser exposure.

A warning system is any system of biological or technical nature deployed by an individual or group to inform of a future danger. Its purpose is to enable the deployer of the warning system to prepare for the danger and act accordingly to mitigate against or avoid it.

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[edit] Biological warning systems

[edit] Man-made warning systems

[edit] Civilian warning systems

A Fire alarm that warns people if a building is on fire.
A Fire alarm that warns people if a building is on fire.

[edit] Military warning systems

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