Features: 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 ect. Specifications: 3 Wire Polarity: NPN Detection Voltage: for DC 10-30V Detection Distance: 4mm Ouput Status: Normally Open Output current: 200mA Detection objects: Conductor Part number: LJ12A3-4-Z or BX Screw Length: 61mm Quantity: 1 Pc Note: Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Contents: 1 Pc x Inductive Switch Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.