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Home Sensor Modules Proximity Sensor Other Proximity Sensor & Modules
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Lj12a3 Sensor - Tube Type Inductive Proximity Sensor Detection Switch NPN DC6-36V 4mm Normally Open switch LJ12A3-4-Z/BX
AI0145 (1)
AI0145 (4)
AI0145 (3)
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  • Lj12a3 Sensor - Tube Type Inductive Proximity Sensor Detection Switch NPN DC6-36V 4mm Normally Open switch LJ12A3-4-Z/BX
  • AI0145 (1)
  • AI0145 (4)
  • AI0145 (3)
  • baalpvsw
  • 5uk6gwvm

Tube Type Inductive Proximity Sensor Detection Switch NPN DC6-36V 4mm Normally Open switch LJ12A3-4-Z/BX

Rated 4.77 out of 5 based on 22 customer ratings
(22 customer reviews)
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QUICK OVERVIEW

  • Output Type: NPN-NO
  • Red LED checks the state of the proximity sensor
  • High repeated positioning accuracy
  • High switching frequency
  • Wide voltage range
  • Antivibration, dust, water and oil prevention
  • Reverse power protection, short circuit protection, directly connecting with PLC
  • Can replace small switches and limit switches
Brand: Generic SKU: AI0145
Category: Other Proximity Sensor & Modules
Tags: Metal Detector, Metal Sensor, NO Proximity Sensor, NPN Proximity Sensor, Proximity Sensor

₹193.52 (₹164.00 + GST)

Description
Additional information
Warranty
COO

This is the 36V variant of the Tube Type Inductive Proximity Sensor Detection Switch NPN DC6-36V 4mm Normally Open switch LJ12A3-4-Z/BX in Other Proximity Sensor & Modules. Available at ₹193.52 (₹164.00 + GST) with free shipping across India.

Tube Type Inductive Proximity Sensor Detection Switch NPN DC6-36V 4mm Normally Open switch LJ12A3-4-Z/BX

Introducing the Tube Type Inductive Proximity Sensor Detection Switch, specifically the NPN DC6-36V 4mm Normally Open model LJ12A3-4-Z/BX. Widely used in the automatic control industry, this sensor excels at detecting, controlling, and enabling non-contact switching operations. When a target object approaches, the proximity switch generates a control signal.

As metal enters the sensing area of the proximity switch, an Eddy Current is induced within the metal, disrupting the magnetic field created by the sensor. This change is detected by the sensor, triggering its response.

These inductive proximity switches operate without physical contact, eliminating pressure or sparks, and quickly generate electrical commands. They provide accurate positioning and stroke movement detection, featuring high positioning precision, fast operating frequency, and long service life. Additionally, they are easy to install and can withstand harsh environments.

With a detection range of 4mm and the ability to sense various metals, these compact sensors offer durability, affordability, and excellent anti-interference capabilities. They are commonly used for precise positioning in molds, precision machine tools, and robotic applications, ensuring reliable performance even in challenging conditions.

Features 

  • Red LED checks the state of the proximity sensor
  • High repeated positioning accuracy
  • High switching frequency
  • Wide voltage range
  • Outer (Thread) Diameter: M12
  • Antivibration, dust, water and oil prevention
  • Reverse power protection, short circuit protection, directly connecting with PLC
  • Can replace small switches and limit switches

Package Includes 

  • 1 x DC 6-36V M12 Inductive 4mm NPN-NO Proximity Sensor Switch

Inductive Proximity Sensor Datasheet kidsj4tg 2

Tags: Metal Detector Metal Sensor NO Proximity Sensor NPN Proximity Sensor Proximity Sensor
Also in Other Proximity Sensor & Modules:
E18-D80NK Mini Adjustable Infrared Sensor Switch 3-80cmGreen SN04-N2 NPN DC10-30V Inductive Proximity Sensor Switch NC 3 LineAcrylic Bracket For Intelligent Car Infrared SensorE18-D80NK NPN- NO Adjustable IR Sensor Proximity Switch 3-80cm Range
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Technical Specifications

Size4mm
SKUAI0145
Weight0.06 kg
AvailabilityOut of Stock

Applications & Use Cases

The Tube Type Inductive Proximity Sensor Detection Switch NPN DC6-36V 4mm Normally Open switch LJ12A3-4-Z/BX is a versatile other proximity sensor & modules used across a wide range of applications including electronics projects, DIY builds, prototyping, and educational experiments.

Common use cases:

  • Integrating into a custom electronics project
  • Learning and experimenting with circuits
  • Replacing or upgrading components in existing setups

This product is ideal for electronics enthusiasts, engineers, and students.

Technical Tip: Always verify voltage and current requirements before connecting to your circuit. Check datasheets for detailed specifications and pin configurations.

Shipping & Delivery

  • Free shipping on orders above ₹999 across India
  • Dispatched within 1-3 business days
  • Expected delivery: 3-7 business days depending on location
  • Secure packaging to ensure safe transit of electronic components
Weight 0.06 kg
Dimensions 5 × 5 × 3 cm
15 Days Warranty

Please note that this item is only covered by a standard supplier warranty against manufacturing defects for a period of 15days from the time of delivery. It is important to understand that only manufacturing defects are covered under this warranty, and any other issues will not be considered for reimbursement or replacement. We strongly advise inspecting the product upon delivery to ensure it meets your expectations. In case of any manufacturing defects, we guarantee reimbursement or replacement.


What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

Tags: Metal Detector Metal Sensor NO Proximity Sensor NPN Proximity Sensor Proximity Sensor
Also in Other Proximity Sensor & Modules:
Green SN04-N2 NPN DC10-30V Inductive Proximity Sensor Switch NC 3 LineE18-D80NK NPN- NO Adjustable IR Sensor Proximity Switch 3-80cm RangeE18-D80NK Mini Adjustable Infrared Sensor Switch 3-80cmAcrylic Bracket For Intelligent Car Infrared Sensor
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Country Of Origin: China

22 reviews for Tube Type Inductive Proximity Sensor Detection Switch NPN DC6-36V 4mm Normally Open switch LJ12A3-4-Z/BX

  1. Avatar of Gaurav Ghosh
    Rated 4 out of 5

    Gaurav Ghosh (verified owner) – November 18, 2020

    Good Tube Type Inductive Proximity Sensor Detection. Works as described. Calibration needed some patience but results are good.

  2. Avatar of Aditya Grewal
    Rated 4 out of 5

    Aditya Grewal (verified owner) – December 5, 2020

    Good Tube Type Inductive Proximity Sensor Detection. Works as described. Calibration needed some patience but results are good.

  3. Avatar of Lokesh Saini
    Rated 5 out of 5

    Lokesh Saini (verified owner) – March 15, 2021

    Great Tube Type Inductive Proximity Sensor Detection. Using it in my smart agriculture system. Reliable measurements every time.

  4. Avatar of Jayesh Sen
    Rated 5 out of 5

    Jayesh Sen – April 17, 2021

    Love this Tube Type Inductive Proximity Sensor Detection. Response time is fast and readings are stable.

  5. Avatar of Ojas Das
    Rated 5 out of 5

    Ojas Das (verified owner) – December 11, 2021

    Superb Tube Type Inductive Proximity Sensor Detection! Using it in my environmental monitoring system. Very reliable data.

  6. Avatar of Gaurav Menon
    Rated 5 out of 5

    Gaurav Menon – January 7, 2022

    Great Tube Type Inductive Proximity Sensor Detection. Using it in my smart agriculture system. Reliable measurements every time.

  7. Avatar of Riya Mehta
    Rated 5 out of 5

    Riya Mehta (verified owner) – February 6, 2022

    Perfect for my weather station. This Tube Type Inductive Proximity Sensor Detection gives consistent readings day and night.

  8. Avatar of Ayush Goyal
    Rated 4 out of 5

    Ayush Goyal – August 23, 2022

    Decent Tube Type Inductive Proximity Sensor Detection for the price. Requires proper wiring but works well once set up.

  9. Avatar of sunil
    Rated 5 out of 5

    sunil (verified owner) – August 26, 2022

    good

  10. Avatar of Sarika Luthra
    Rated 4 out of 5

    Sarika Luthra (verified owner) – December 3, 2022

    Decent Tube Type Inductive Proximity Sensor Detection for the price. Requires proper wiring but works well once set up.

  11. Avatar of Bhavna Agarwal
    Rated 5 out of 5

    Bhavna Agarwal (verified owner) – March 13, 2023

    Superb Tube Type Inductive Proximity Sensor Detection! Using it in my environmental monitoring system. Very reliable data.

  12. Avatar of Vipin Verma
    Rated 5 out of 5

    Vipin Verma (verified owner) – March 24, 2023

    Great quality Tube Type Inductive Proximity Sensor Detection. Calibrated it easily and the accuracy is impressive.

  13. Avatar of Sandeep Parekh
    Rated 4 out of 5

    Sandeep Parekh – November 12, 2023

    Good Tube Type Inductive Proximity Sensor Detection. Works as described. Calibration needed some patience but results are good.

  14. Avatar of Tapan Das
    Rated 5 out of 5

    Tapan Das (verified owner) – December 1, 2023

    Good produc , and it is working fine for me

  15. Avatar of Utkarsh Khurana
    Rated 5 out of 5

    Utkarsh Khurana (verified owner) – January 24, 2024

    Bought this Tube Type Inductive Proximity Sensor Detection for my college project. Accurate readings, easy to code. Very happy!

  16. Avatar of Harsh Negi
    Rated 5 out of 5

    Harsh Negi (verified owner) – February 7, 2024

    This Tube Type Inductive Proximity Sensor Detection is excellent for the price. My data logging project is working perfectly now.

  17. Avatar of Rakesh Menon
    Rated 5 out of 5

    Rakesh Menon (verified owner) – December 25, 2024

    Bought this Tube Type Inductive Proximity Sensor Detection for my college project. Accurate readings, easy to code. Very happy!

  18. Avatar of Daksh Krishnan
    Rated 5 out of 5

    Daksh Krishnan (verified owner) – January 9, 2025

    Love this Tube Type Inductive Proximity Sensor Detection. Response time is fast and readings are stable.

  19. Avatar of Lakshmi Bajaj
    Rated 5 out of 5

    Lakshmi Bajaj (verified owner) – January 22, 2025

    Excellent sensitivity and range on this Tube Type Inductive Proximity Sensor Detection. Works better than I expected.

  20. Avatar of Parth Mehta
    Rated 5 out of 5

    Parth Mehta (verified owner) – July 25, 2025

    Great quality Tube Type Inductive Proximity Sensor Detection. Calibrated it easily and the accuracy is impressive.

  21. Avatar of Sarika Kumar
    Rated 5 out of 5

    Sarika Kumar (verified owner) – November 7, 2025

    Perfect Tube Type Inductive Proximity Sensor Detection for my automation project. Integrates seamlessly with my microcontroller.

  22. Avatar of Raj Choudhury
    Rated 5 out of 5

    Raj Choudhury (verified owner) – January 18, 2026

    Excellent Tube Type Inductive Proximity Sensor Detection! Readings are accurate and consistent. Perfect for my project.

Only logged in customers who have purchased this product may leave a review.

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