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A water detector is an electronic device that is designed to detect the presence of water for purposes such as to provide an alert in time to allow the prevention of water leakage. A common design is a small cable or device that lies flat on a floor and relies on the electrical conductivity of water to decrease the resistance across two contacts.
Rain sensor on the windshield of a car. A rain sensor or rain switch is a switching device activated by rainfall. There are two main applications for rain sensors. The first is a water conservation device connected to an automatic irrigation system that causes the system to shut down in the event of rainfall.
There are at least two types of devices used to detect precipitation: A light emitting diode weather identifier (LEDWI) sensor measures the scintillation pattern of the precipitation falling through the sensor's infrared beam (approximately 50 millimeters in diameter) and determines from a pattern analysis of the particle size and fall velocity whether the precipitation is rain or snow.
An example of a Wireless Emergency Alert on an Android smartphone, indicating a Tornado Warning in the covered area. Wireless Emergency Alerts (WEA), formerly known as the Commercial Mobile Alert System (CMAS) and, prior to that, as the Personal Localized Alerting Network (PLAN), [1] is an alerting network in the United States designed to disseminate emergency alerts to cell phones using Cell ...
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A clear view screen or clearview screen is a glass disk mounted in a window that rotates to disperse rain, spray, and snow. A clear view screen is typically driven by an electric motor at the center of the disk, and is often heated to prevent condensation or icing.
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Lane assist camera of VW Golf Mobileye's PCB and camera sensor from a Hyundai Lane Guidance camera module. Lane warning/keeping systems are based on: Video sensors in the visual domain (mounted behind the windshield, typically integrated beside the rear mirror) Laser sensors (mounted on the front of the vehicle)