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LCD liquid crystal in the thermometer is a substance similar to cholesterol, with the temperature conversion of different levels of the composition of the deflection, which presents a reversible brightly bright color changes. This is can be used to make simple and convenient thermometers. Temperature range: -5c to 50c According to the different application are mainly divided into: water temperature test card, beverage thermometer, forehead thermometer, indoor thermometer, clothing thermometer etc. Be customized size, shape and logo according to customer requirements.