Robust limit switch designed to withstand shock and vibration while delivering reliable electrical performance. Easy to wire with smooth and dependable operation. Function Limit switches are electrical switches used to limit the movement of mechanical equipment. This product provides precise end stop control to prevent over travel and damage. Compatibility and applications Suitable for a wide range of equipment and setups including printers and 3D printers, CNC routers, and laser systems. Also applicable to lighting controls such as light switches, swing lights, and pantry light switches, as well as garage doors, door switches, and cabinet door switches. Electrical configuration and durability Automatic reset with the configuration of 2 NC contacts and 2 NO contacts. Builtin basic conversion mechanism with a double spring mechanism for longer service life. Key benefits Ensures precise travel limits and prevents overtravel Simple wiring and reliable, smooth operation Durable design with a double spring mechanism for extended life Flexible electrical configuration supports both normally closed and normally open needs Use scenarios End stop in a 3D printer or CNC router to accurately limit axis movement and protect components Door and cabinet sensing in home or workshop environments to control lighting or status indicators Safety or position sensing in laser systems or other machines to halt motion at defined positions Notes No changes to the brand, model, or core functions are introduced. The description reflects the stated features: shock and vibration resistance, wiring ease, limit switch function, broad compatibility, automatic reset, two NC and two NO contacts, and the double spring based conversion mechanism for longer life.