LJ12A3-4-Z/BX NPN 24V Approach Sensor Inductive Proximity Switch

 is a reliable and compact inductive proximity sensor designed to detect metallic objects without making physical contact. It works using electromagnetic induction to identify the presence of metal objects within its sensing range, making it suitable for applications where non-contact detection is required.

The sensor features an NPN Normally Open (NO) output and is commonly used with DC power supplies. It can detect suitable metallic objects such as iron and steel and is useful for object detection, position sensing, counting, limit detection, and automated control systems. Its non-contact operation helps reduce mechanical wear and provides reliable performance for repeated detection applications.

The LJ12A3-4-Z/BX NPN 24V Approach Sensor Inductive Proximity Switch comes in a compact cylindrical threaded housing that makes it easy to install and adjust in different machines and equipment. Its typical sensing distance is up to 4 mm, depending on the target material and operating conditions. The sensor is widely used in CNC machines, 3D printers, conveyor systems, industrial automation, robotics, production machinery, and DIY electronics projects.

Key Features:

• Inductive proximity sensor for non-contact metal detection

• NPN Normally Open (NO) output

• Typical sensing distance of up to 4 mm

• Suitable for detecting metallic objects

• Commonly used with DC power supplies

• Compact cylindrical M12 threaded design

• 3-wire connection

• Suitable for position and object detection

• Useful for counting metal objects

• Ideal for limit sensing applications

• Suitable for CNC machines and 3D printers

• Useful for conveyor and automation systems

• Suitable for robotics and industrial applications

• Non-contact operation reduces mechanical wear

• Easy to install and integrate into control systems

• Suitable for DIY, educational, and professional projects

The LJ12A3-4-Z/BX NPN 24V Approach Sensor Inductive Proximity Switch is an excellent choice for reliable and repeatable metal detection in industrial automation, robotics, machinery, CNC systems, and electronic control projects.