It is a component widely used in automatic control industry for detecting, controlling, and noncontact switching.When proximity switch is close to some target object, it will send out control signal.As it is capacitive type proximity switch, its detecting object target is not limited to only conductor, but also liquid and even powder things, like plastic, water, glass, oil, etc.It's widely used in machine, paper making, light industry for limiting station, orientation taking count, speeding trial .Product Name: Capacitive Proximity Switch;Model: LJC30A3-H-Z/AY;: Capacitance SensorWire Type: Cylindrical DC 3 Wire Type (Brown, Black, Blue);Switch Appearance Type: Cylinder TypeCurrent Output: 300mA;Supply Voltage: DC 6-36VCable Length: 120cm/47 inch;Operating Temperature: -25 C to +70 C(Non-freezing Condition);Diameter of Head: 30mm;Detecting Distance: 1-25mm;Output Type: PNP NC(Normal Close).External Material: Plastic, Alloy;Net Weight: 441gColor: Silver Tone, Yellow, Gray;Package Content: 3 x Capacitive Proximity SwitchOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.