In the above differential or axle sensor to sense the rotation of the number of laps, usually with Hall, photoelectric two ways to detect signals of automotive sensors offer, which aims to use the odometer count can effectively analyze and judge the car's traveling speed and mileage, because the wheel axle and the angular velocity equal to the radius of a known tire, directly calculated by the mileage parameters. Two bearings on the shaft design, greatly reducing the running torque, reducing the friction automotive sensors classification, and enhance the life; motion detection signal changed from the original running gear detector signal; original in-line Vertical transmission gearbox to chamfer interface. Odometer sensor plug is generally in the gearbox, and some open the hood you can see, some want to operate in the trench. Domestic automotive sensor since the 1980s, the domestic auto industry, the introduction of foreign advanced instrumentation technology and with the support of sensor production technology, basically meet the domestic small-volume, low-level models of matching demand. Due to the late start of automotive sensors which have not formed, supporting, independent industry has not yet formed, still attached to the car dashboard business. Number of cars, light trucks and some trucks in the introduction of new electronic products, require large quantities, a high level of automotive sensors, but the highest level of the existing domestic automotive sensor products than 10 years behind similar foreign products, imported 500,000 annually more sets of high-performance automotive sensors. Wholesale automotive sensors, Xinfeng (certified), automotive sensors provide sensing by Xinxiang City Xinfeng purification technology Limited. Xinxiang City Xinfeng purification Sensing Technology Co., Ltd. (www.xfcgq.com) is an industry leader in Henan Xinxiang, sensors, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Xinfeng leadership with the staff warmly welcome all inquiries negotiations to create a better future Xinfeng.