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A LITTLE SOMETHING WORTH KNOWING

A small discovery. Yours to pass on.

Everyday LifeOne small ahaHome system

This alarm senses smoke particles to give an early warning of fire.

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Everyday LifeOne small aha
Your new ahaSmoke detector

Smoke detectors use sensing chambers to warn occupants when smoke reaches a detectable level. Source: Smoke detector ↗

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More from How Things Work at Home

A few more worth knowing.

  1. 14This protective device opens an electrical circuit when the current becomes unsafe.RECALL
    Circuit breaker

    A circuit breaker opens an electrical circuit when current becomes unsafe, helping protect wiring.

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  2. 15This electrical safety component is designed to melt when current exceeds its rating.RECALL
    Fuse

    An electrical fuse contains a part designed to melt when current exceeds its safe rating.

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  3. 16This transport system moves a passenger car through a vertical shaft using guides, brakes, and hoisting equipment.RECALL
    Elevator

    An elevator moves a car through a shaft using hoisting equipment, guides, brakes, and control systems.

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