The core component of Kejit gear speed sensor uses magnetoresistance as the detection component, and then uses a new signal processing circuit to reduce noise and improve functions. By comparing with the output waveforms of other types of tooth speed sensors, the error of the measured speed is extremely small and the linear characteristics are very consistent. The sensing objects are magnetic materials or magnetically permeable materials, such as magnetic steel, iron and electrical steel. When the magnetic or permeable material with protrusions (or depressions) on the measured object rotates as the measured object, the sensor outputs a pulse signal related to the rotation frequency to achieve the purpose of speed measurement or displacement detection.

Product Paramenters
voltage	8-30VDC
Current consumption	Suitable for up to 15mA
Output signalVo	Push-pull output Imax=+/-20mA,Ulow<2.5V,Uhigh>Usupply-3.5V
Frequency Range	0-15KHz
air gap	Module 1: 0.2to0.6mm; Module 2: 0.2to1.5mm
Earthquake resistance	5gn (within 5…2000Hz range)
Impact resistance	50gn (during 20ms, half sine wave)
Protection level	Sensor head: IP68; cable connection and connector: IP67
temperature range	-20℃…+85℃