fire fighting system - Smoke Detector
Description
| Air in the dual sensing chambers is irradiated to produce ions that travel to the positive and negative electrodes |
Product Details
Air in the dual sensing chambers is irradiated to produce ions that travel to the positive and negative electrodes, creating a current flow. As smoke enters the outer chamber, the flow drops and voltage increases. There are two main types of smoke detectors: ionization detectors and photoelectric detectors. A smoke alarm uses one or both methods, sometimes plus a heat detector, to warn of a fire. The devices may be powered by a 9-volt battery, lithium battery, or 120-volt house wiring.
Air in the dual sensing chambers is irradiated to produce ions that travel to the positive and negative electrodes
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