Main categories by end-use pressure-sensitive and power-sensitive sensors, position sensors, level sensors, power sensors, speed sensors, acceleration sensors, ray radiation sensors, thermal sensors. According to the principle of vibration sensors, humidity sensors, magnetic sensors, gas sensors, vacuum sensor, biosensors. According to the output signal of the analog sensor: non-electrical quantities to be measured is converted into an analog electrical signal. Digital sensors: non-electrical quantities to be measured is converted into a digital output signal (including direct and indirect conversion). Ying digital sensors: the amount of the signal to be measured is converted into a frequency signal or short-cycle signal output (including direct or indirect conversion). Switch sensor: When a signal is measured to reach a particular threshold, Harbin sensor, the sensor output a corresponding signal a low or high setting. Float level sensor float level sensor consists of a magnetic float, measuring catheter, signal unit, electronic unit, junction box and mount components. The proportion of the general magnetic float of less than 0.5, the sensors offer, may drift above the surface and measuring the movement along the vertical pipe. Catheter that has the measuring element, it can be converted in external magnetic interaction resistance signal proportional to the measured level signal is converted to level changes, and the electronic unit into 4 ~ 20mA or other standard signal output. The sensor module circuit, sensor suppliers, with acid, moisture, shock, corrosion, etc., what the sensor is within the circuit comprises a constant current feedback circuit and protection circuit, output can not exceed the maximum current 28mA, it is possible to reliably protect the power supply and the secondary instrument is not damaged. Nanjing Iveco sensor _ Xinfeng (Online) _ Harbin sensor sensing provided by the Xinxiang City, Xinfeng purification technology Limited. Xinxiang City, Xinfeng purification Sensing Technology Co., Ltd. (www.xfcgq.com) (www.xfcgjh.com) is a leader in Xinxiang, sensors, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum Limits to meet customer needs. In Xinfeng leadership with the staff warmly welcome all inquiries negotiations to create a better future Xinfeng.