A high liquid alarm system for use in detecting the presence of water and oil in water present in a confined space is disclosed. In one implementation, the system includes an optical sensor capable of detecting water at a certain level, a sensing device capable of differentiating oil and water, and an alarm indicator.
LED tube is a type of LED lamp used in fluorescent tube luminaires with G5 and G13 bases to replace traditional fluorescent tubes. As compared to fluorescent tubes, the most important advantages of LED tubes are energy efficiency and long service life.
This is a plasma in argon gas at a pressure of about one thousandth of an atmosphere, with the temperature of the plasma electrons about thirty thousand degrees. Plasmas like this are used for processing semiconductor materials
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