The main features of the sensor characteristics include: miniaturization, digital, intelligent, multi-functional, systematic, network sensor suppliers, which not only promotes the transformation and upgrading of traditional industries sensors offer, but also the possibility of establishing new industries, thus become a new economic growth point in the 21st century. Miniaturization is to establish what the microelectromechanical system (MEMS) technology is based on the sensor, has been successfully applied on a silicon pressure sensor made of silicon devices. Simple float level sensor float type level sensor is a magnetic float to float sensor, which is based on the Archimedes principle design. Float level sensor is the use of tiny metal film strain sensing technology to measure liquid level, interface level, or density. It can be the key to the site set routine operation at work. Hydrostatic level sensor or measurement principle of the sensor uses hydrostatic pressure of work. It is generally used in silicon pressure gauge to measure the pressure sensor is converted into an electrical signal, and then the amplifier circuit and compensation circuit compensation, and finally to 4 ~ 20mA or 0 ~ 10mA output current mode. Sensor supply, Xinfeng (certified), the sensor is provided by Xinxiang City, Xinfeng Sensing Technology Co. purification. 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.