SFN-WT self-powered pipeline temperature sensor is a series of smart meters with low power consumption and wireless communication power consumption, relying on the mature NB-IOT network, to realize the wireless transmission of field instrument data to the cloud platform and mobile APP. The product can set parameters such as temperature unit, range zero/range fullness, high/low alarm value, fluctuation threshold, upload time and other parameters through the button on the terminal, and can also remotely customize the collection frequency through the cloud platform, and view real-time data and historical data online, so that customers can accurately and timely grasp the on-site information. By using the self-powered power module, the power can be generated in real time to supply the sensor with electricity or storage, so as to meet the normal maintenance-free use of the sensor during its life. At the same time, the normal operation of the sensor during the regular maintenance period of the industrial site (up to more than 3 months) is ensured.