When installing Rotation Speed Sensor ZS-03, you need to pay attention to the gap between it and the detection gear. The smaller the gap, the greater the output voltage. At the same time, the output voltage of the sensor increases with the increase of speed. Therefore, the recommended gap during installation is usually 0.5 ~ 3 mm, and it is recommended to use an involute gear to detect the tooth shape of the gear. The size of the gear to be detected is determined by the module (m), which is a parameter value that determines the size of the gear. It is recommended to use a gear plate with a module ≥ 2 and a tooth top width greater than 4 mm; the material of the detection gear is preferably ferromagnetic material (that is, a material that can be attracted by a magnet).