NPN LJ12A3-4-ZBX Inductive switch:

• The NPN LJ12A3-4-ZBX Inductive Switch is a type of proximity sensor that detects the presence of metallic objects without physical contact.
• It works using inductive sensing technology, which generates an electromagnetic field and detects changes when a conductive object enters that field.
• This NPN type switch provides a low signal output when an object is detected, making it suitable for position sensing or limit switches in various industrial and 3D printing applications.
• It is commonly used in automated systems, including 3D printers for detecting the position of moving parts like the print bed or extruder assembly.