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  2. List of vehicle instruments - Wikipedia

    en.wikipedia.org/wiki/List_of_vehicle_instruments

    Oil pressure gauge; Coolant Temperature gauge; Battery/Charging system lamp; Low oil pressure lamp; Airbag lamp; Coolant overheat lamp; Hand-brake lamp; Door ajar lamp; High beam lamp; On-board diagnosis indicator/Check engine lamp; Fuel gauge; Low fuel lamp; Hand brake indicator; Turn light; Engine service indicator; Seat belt indicator

  3. Rain sensor - Wikipedia

    en.wikipedia.org/wiki/Rain_sensor

    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.

  4. Rain gauge - Wikipedia

    en.wikipedia.org/wiki/Rain_gauge

    The exterior of a tipping bucket rain gauge The interior of a tipping bucket rain gauge. The tipping bucket rain gauge consists of a funnel that collects and channels the precipitation into a small seesaw-like container. After a pre-set amount of precipitation falls, the lever tips, dumping the collected water and sending an electrical signal.

  5. Cheugugi - Wikipedia

    en.wikipedia.org/wiki/Cheugugi

    Cheugugi (Hangul: 측우기, Hanja: 測雨器) is the first well-known rain gauge invented and used during the Joseon dynasty of Korea. It was invented and supplied to each provincial offices during the King Sejong the Great's reign. As of 2010, only one example of the Cheugugi remains, known as the Geumyeong Cheugugi (Hangul: 금영측우기 ...

  6. Precipitation gauge - Wikipedia

    en.wikipedia.org/wiki/Precipitation_gauge

    The term "Precipitation gauge" may refer to: Disdrometer, an instrument used to measure the drop size distribution and velocity of falling hydrometeors; Rain gauge, also known as an udometer, a pluviometer, an ombrometer or a cup is a type of instrument used by meteorologists and hydrologists to gather and measure the amount of liquid precipitation over a set period of time

  7. Air core gauge - Wikipedia

    en.wikipedia.org/wiki/Air_core_gauge

    An air core gauge is a specific type of rotary actuator in an analog display gauge that allows an indicator to rotate a full 360 degrees. It is used in gauges and displays, most commonly automotive instrument clusters. A typical automotive application is shown at the right. The air core gauge is a type of "air-core motor".

  8. Mass flow sensor - Wikipedia

    en.wikipedia.org/wiki/Mass_flow_sensor

    The GM LS engine series (as well as others) use a coldwire MAF system (produced by AC Delco) that works similarly to the hot-wire MAF system; however, it uses an additional "cold" resistor to measure the ambient air and provide a reference for the "hot" resistor element used to measure the air flow. [5]

  9. Ambient Devices - Wikipedia

    en.wikipedia.org/wiki/Ambient_Devices

    Ambient stopped transmitting these signals in 2019, rendering devices that were dependent on them useless. They also sell forecasting services to utility companies so that customers can reduce their energy usage when utilities are encountering peak usage and need an automated way of reducing energy consumption in homes and businesses.