Negative temperature coefficient thermistor, also known as NTC thermistor, is a kind of sensor resistor whose resistance value decreases with the increase of temperature. It is widely used in various electronic components, such as temperature sensor, multiple fuse and automatic regulating heater. Its measuring range is generally - 10 - + 300 ℃, and it can also be - 200 - + 10 ℃. It can even be used as a negative temperature coefficient thermistor thermometer in the environment of + 300 - + 1200 ℃, and its accuracy can reach 0.1 ℃, and the temperature sensing time can be less than 10s. It is not only suitable for the temperature detector in the granary, but also can be used in food storage, medicine and health, scientific farming, ocean, deep well and high. Temperature measurement of air and glacier.