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irrigation controller

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  • Irrigation — For its use in viticulture, see Irrigation in viticulture. For its use in medicine, see Therapeutic irrigation. LEPA redirects here. For the airport serving Palma de Mallorca, Spain, assigned the ICAO code LEPA, see Palma de Mallorca Airport.… …   Wikipedia

  • Controller (irrigation) — An irrigation controller is a device to operate automatic irrigation systems such as lawn sprinklers and drip irrigation systems. Most controllers have a means of setting the frequency of irrigation, the start time, and the duration of watering.… …   Wikipedia

  • Controller — may refer to: Contents 1 Occupations 2 Computing and electronics 3 Other devices …   Wikipedia

  • Irrigation sprinkler — Irrigation sprinklers are used on farms, golf courses, residential yards, and other places to water crops, lawns, gardens or other plants in the event of drought. They are also used for recreation or as a cooling system. Sprinkler types… …   Wikipedia

  • Drip irrigation — A dripper Drip irrigation, also known as trickle irrigation or microirrigation or localized irrigation , is an irrigation method which saves water and fertilizer by allowing water to drip slowly to the roots of plants, either onto the soil… …   Wikipedia

  • Open-loop controller — An open loop controller, also called a non feedback controller, is a type of controller that computes its input into a system using only the current state and its model of the system. A characteristic of the open loop controller is that it does… …   Wikipedia

  • Rain sensor — A rain sensor or rain switch is a switching device actuated by rainfall. There are two main types of rain sensors. The first is a water conservation device connected to an automatic irrigation system that causes the system to shut down in the… …   Wikipedia

  • Soil moisture sensors — measure the water content in soil. A soil moisture probe is made up of multiple soil moisture sensors. One common type of soil moisture sensors in commercial use include the Frequency domain sensor such as the capacitance sensor. One of the major …   Wikipedia

  • Egypt — /ee jipt/, n. 1. Arab Republic of. a republic in NE Africa. 64,791,891; 386,198 sq. mi. (1,000,252 sq. km). Cap.: Cairo. Arabic, Misr. Formerly (1958 71), United Arab Republic. 2. an ancient kingdom in NE Africa: divided into the Nile Delta… …   Universalium

  • Sprinkler system timer — A sprinkler system timer is an electrical device that is used to set an irrigation sprinkler system to come on automatically at a certain time. Irrigation timers first appeared in the early 1960s to control large radius lawn sprinklers, which at… …   Wikipedia

  • Agriculture in Canada — Canada is one of the largest agricultural producers and exporters in the world, particularly concerning wheat and other grains. [ [http://dsp psd.pwgsc.gc.ca/Collection R/LoPBdP/modules/prb98 2 grain/grainmarket e.htm The Relative Position of… …   Wikipedia

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