Room temperature, pipe temperature sensors: a room temperature sensor for measuring indoor and outdoor ambient temperature sensor quote, pipe temperature sensor for measuring the evaporator and condenser tube wall temperature. Temperature sensors and temperature sensors tube sensor supplier different shapes, but basically the same temperature characteristics. Divided by the temperature characteristics, the United States uses room temperature sensor tube There are two types: a constant B is 4100K ± 3%, the reference resistor is 25 ℃ corresponding resistance 10KΩ ± 3%. Resistance Tolerance corresponding 0 ℃ and 55 ℃ at approximately ± 7%; while below 0 ℃ and above 55 ℃, for different suppliers, resistor tolerance there will be some differences. The higher the temperature, the smaller the resistance; the lower the temperature, the greater the resistance. Farther away from 25 ℃, the greater the corresponding resistor tolerances. Repeatability: Repeatability is the degree of the sensor in the same direction when the input for a full-scale change on several occasions, resulting curve inconsistent. Drift: Drift sensor inputs means that in the same circumstances, the sensor output change over time, this phenomenon is called drift. Causes drift has two aspects: First, the structural parameters of the sensor itself; the second is the environment (such as temperature, humidity, etc.). Resolution: When the input sensor is slowly increased from zero What is the value of the sensor output changes observed after exceeding a certain increment, the resolution of the sensor input increment says that the minimum input increment. Threshold: when the input sensor value is slowly increased from zero, the output after reaching a certain value observable change occurs, the input value, said threshold voltage of the sensor. Sensor wholesale, Xinfeng (certified), the sensor is provided by Xinxiang City, Xinfeng Sensing Technology Co. purification. Xinxiang City Xinfeng purification Sensing Technology Co., Ltd. (www.xfcgq.com) is an industry leader in Henan Xinxiang, sensors, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Xinfeng leadership with the staff warmly welcome all inquiries negotiations to create a better future Xinfeng.