The CS-3F anti rotation speed sensor is equipped with permanent magnet steel. When there are rotating magnetic gears, perforated (or slotted) disks (or shafts) near the magnetic core end face, due to the change in magnetic resistance in the magnetic circuit, the inner coil of the sensor can induce and output a corresponding AC voltage signal, which is approximately a sine wave. The SZMB-12 magneto electric speed sensor has the advantages of no power supply, large output signal, good anti-interference performance, small size, sturdy and reliable, long service life, etc. It can be used in harsh environments such as smoke, water vapor, oil and gas. The SZMB-12 magneto electric speed sensor is commonly used to measure speed, cycle, and velocity. Widely used in machinery