Xinyake speed and direction sensor, using imported IC components, has stable performance and high cost performance. This kind of sensor can be divided into two categories according to different applications. One is to detect gears, the object of which is ferrous gears. It is used for installing gears, high speed and high accuracy of speed measurement. The other is to detect magnets, which are used for inconvenient installation of gears, low speed or low accuracy of speed measurement.