Features: This is an inductance proximity switch specially for 3D printer. Red LED indicates that it's available to detect the sensor operation state. With IP65 protection. When proximity switch is close to some target object, it will send out control signal. Used widely in machine tool industry, frequency counters and other automatic control system. It is a component widely used in automatic control industry for detecting, controlling, and noncontact switching. Specifications: Model: LJ12A3-4-ZBX Wire shell material: PVC Sensor shell material: Nickel plated brass Cable length: Approx. 110cm / 3.6ft Dimension: M12 x 6cm (2.4inch) Type: NPN Detection Distance: 4mm / 0.15inch Switch appearance Type : Cylinder type Working voltage: DC 6-36V Continuous current: 300mA Short circuit protection: No Polarity Protection: Yes Protection grade: IP65 Output indication: Red light Working temperature: -25-70 Connection way: 3-wire PVC cable Package weight: 45g Package List: 1 x Inductance Sensor Switch1This is an inductance proximity switch specially for 3D printer. 2Red LED indicates that it's available to detect the sensor operation state. With IP65 protection. 3When proximity switch is close to some target object, it will send out control signal. 4Used widely in machine tool industry, frequency counters and other automatic control system. 5It is a component widely used in automatic control industry for detecting, controlling, and noncontact switching