Parameters of main need to determine the shape and size, detection distance, working voltage, output mode (NPN/PNP) (normally open/closed), output form the main parameters, at the same time also need to ensure that the sensor wire form (direct line/connector type), cable length, frequency, environment temperature requirements, waterproof and dustproof requirements (IP level) parameters such as accurate. In addition, if you have special requirements, just need to select special type sensors, inductive sensors, for example, at present China labino sensor has high pressure resistance, high temperature resistant, high frequency, strong magnetic immune, analog output type, explosion-proof type, no attenuation, and other special products for customers to choose.