The main purpose of hot and cold temperature is a physical quantity characterizing the object level, the process of industrial and agricultural production is an important and universal measurement parameters. Measurement and control of temperature to ensure product quality, increase production efficiency, energy conservation, safety, promote the development of national economy plays a very important role. Due to the universality of the temperature measurement, the number of temperature sensors in the first place, temperature sensors commonly used in a variety of sensor models, accounting for 50%. Thermistor temperature sensor is a semiconductor material, the temperature sensor specifications, most of the negative temperature coefficient, Texas temperature sensors, i.e., the resistance decreases with increasing temperature. Temperature changes can cause large changes in resistance, and therefore it is the most sensitive temperature sensor. But poor linearity of the thermistor, and a great relationship with the production process. Manufacturers to not standardized thermistor curves. Thermistor volume is very small, in response to temperature changes too fast. But thermistor requires a current source, the small size also makes it extremely sensitive to self-heating errors. Temperature Sensor Specifications _ Xinfeng (certified) _ Texas temperature sensor sensing provided by the Xinxiang City, Xinfeng purification technology Limited. Xinxiang City, Xinfeng purification Sensing Technology Co., Ltd. (www.xfcgq.com) (www.xfcgjh.com) is a leader in Xinxiang, sensors, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum Limits to meet customer needs. In Xinfeng leadership with the staff warmly welcome all inquiries negotiations to create a better future Xinfeng.