A weighing sensor is actually a device that converts a mass signal into a measurable electrical signal output. When using sensors, the actual working environment in which the sensor is located should be considered first, which is crucial for the correct selection of weighing sensors. It is related to whether the sensor can work normally, its safety and service life, and even the reliability and safety of the entire weighing apparatus. There are qualitative differences between the new and old national standards in the basic concepts and evaluation methods of the main technical indicators of weighing sensors. There are several styles available, including S-shaped, cantilever, spoke, plate ring, film box, bridge, and cylindrical.