Inductive Proximity Sensor Module For 3D Printers With 4mm Detection Range NPN Normally Open DC 6-36V Output Metal Detecting Pro Sensor For Precise Print Positioning Fast Install Endstop Upgrade

4mm Inductive Proximity Sensor for 3D Printer Endstops
✔️ 1 pc, NPN NO, DC6-36V, 4mm sensing, IP67, 1.2m lead, rugged

This inductive proximity sensor module, model LJ12A3-4-Z/BX, detects metal within a 0-4 mm range and is ideal as an endstop or precise positioning sensor for 3D printers and compact automation projects.

✅ Working voltage: 6-36V DC
✅ Output: NPN three-wire, normally open
✅ Sensing distance: 0-4 mm
✅ IP67 rated; -30°C to +70°C operation
✅ External lead: 1.2 m; LED indicator (red)
✅ Dimensions: 12 mm dia, 40 mm thread, 60 mm total

💡 What is an inductive proximity sensor used for in automation and printing?

Inductive proximity sensors serve as handy, non-contact metal detectors and position sensors in machines and printers.

• Detect metal presence without contact to trigger controls
• Provide reliable endstop signals in 3D printers and CNC setups
• Match with 6-36V DC NPN outputs for simple wiring
• Rugged IP67 design stands up to workshop use