Two Pack Inductive Proximity Switch For 3D Printers LJ12A3-4-Z/BX NPN NO DC 6-36V 4mm Sensing Distance Cylindrical Sensor With 3 Wire Harness Black Brown Blue 12mm Thread Durable Metal Body Plug And Play Mount
✔️ DC 6-36V, NPN NO, 4mm sensing distance, 12mm M12 thread, 110cm lead
These two compact inductive proximity switches are built for metal sensing in automation and 3D printer setups, providing reliable non-contact detection for endstops and auto-leveling tasks.
✅ NPN normally open output for simple wiring
✅ DC 6-36V supply, up to 300 mA output
✅ 4mm sensing distance detects ferrous targets
✅ 12mm M12 threaded cylindrical body for quick mounting
✅ 110 cm (43.3 in) three-wire lead (black, brown, blue)
✅ Pack of 2 switches in one order
✅ Dimensions: 62 mm length x 20 mm max diameter (2.44 in x 0.79 in)
💡 What is an inductive proximity switch used for in hobby CNC and 3D printers? - handy for non-contact metal detection and automation - provides a simple NPN NO input to controllers - operates on 6-36V DC for hobby gear - helps reliably sense iron parts at around 4 mm