Emergency Devices

DIY Encyclopedia

Some types use low-voltage wire, similar to stereo speaker wire, to connect magnetic window and door sensors to a control panel. Other types...

Measures the changes in electric current caused by invisible particles ionized in the heat of combustion. Transforms air inside the detector...

Uses a small lamp adjusted to direct a narrow light beam across the detection chamber. Smoke entering the chamber scatters this light beam,...

Used primarily by large commercial firms. The alarm sounds when the temperature rises to a certain level. Most are also triggered by a quick...

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