Room temperature, pipe temperature sensors: a room temperature sensor for measuring indoor and outdoor ambient temperature, pipe temperature sensor for measuring the evaporator and condenser tube wall temperature. Different shapes and pipe temperature sensor temperature sensor, but basically the same temperature characteristics. What sensor is divided by the temperature characteristics, the use of the United States at room temperature pipe temperature sensor there are two types: a B constant value of 4100K ± 3% sensors, the reference resistance is 25 ℃ corresponding resistor 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. The farther sensors offer, the greater the corresponding resistance tolerance from 25 ℃. Many types of temperature sensors, frequently used thermal resistance: PT100, PT1000, Cu50, Cu100; Thermocouple: B, E, J, K, S and so on. Not only a wide range of temperature sensors, and a combination of various forms, should choose the appropriate products according to different places. Measurement principle: According to resistor, the potential of the thermocouple temperature variation of different principles have happened, we can get the desired temperature measurement. Sensor applications, sensors, sensor Xinfeng Xinfeng provided by Xinxiang purification technology Limited. Xinxiang City Xinfeng purification Sensing Technology Co., Ltd. (www.xfcgq.com) strong, credible, Xinxiang in Henan sensor industry has accumulated a large number of loyal customers. The company better work attitude and continuous improvement will lead Xinfeng innovative ideas into the brilliant and you work for a better future!