Best Inductive Proximity Sensors of 2025

Kenneth Collin Avatar
Kenneth Collin
Last Updated: 29 Jan 2025

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Inductive proximity sensors are electronic devices that detect the presence of metallic objects without physical contact. They work by generating a magnetic field that induces eddy currents in nearby metallic objects, which in turn generates a signal that is detected by the sensor. These sensors are widely used in industrial automation, robotics, and automotive applications to detect the presence or absence of metallic components, measure distances, and stabilise machinery. They are highly reliable, durable, and can operate in harsh environments, making them an essential component in many industrial processes.

At a Glance: Our Top Picks

AZDelivery LJ12A3-4-Z Inductive Proximity Sensor Pack Cover #TOP 1
AZDelivery LJ12A3-4-Z Inductive Proximity Sensor Pack
ftb score rating icon 9.8
Gebildet 2pcs Metal Inductive Proximity Sensor Switch Cover #TOP 2
Gebildet 2pcs Metal Inductive Proximity Sensor Switch
ftb score rating icon 9.7
Heschen M12 Inductive Proximity Sensor Switch Cover #TOP 3
Heschen M12 Inductive Proximity Sensor Switch
ftb score rating icon 9.5

Top 10 Inductive Proximity Sensors

#TOP 1

AZDelivery LJ12A3-4-Z Inductive Proximity Sensor Pack

LJ12 A3-4-Z
AZDelivery LJ12A3-4-Z Inductive Proximity Sensor Pack Cover
AZDelivery M12 LJ12A3-4-Z/BX Inductive Proximity Sensor 12mm Switch Detector 300mA 6-36 VDC 5V NPN Normally Open (NO) 3 Wire compatible with Arduino (Pack of 5) Including E-Book!

The AZDelivery Proximity Sensor is a versatile component ideal for detecting and controlling non-contact switching. When the sensor nears a target, it sends out a control signal, making it useful for various applications. The red LED provides a clear indication of the sensor's operating status, ensuring you are always informed. It can detect not only conductive materials but also liquids and powders, offering great flexibility for your projects. Additionally, it features polarity reversal and short circuit protection, enhancing safety and reliability during use.

What We Like
Five-piece package for value
Versatile detection for various materials
Clear LED status indication
Includes helpful E-Book
High voltage range for flexibility
#TOP 2

Gebildet 2pcs Metal Inductive Proximity Sensor Switch

LJ12A3-4-Z/BX
E530
Gebildet 2pcs Metal Inductive Proximity Sensor Switch Cover
Gebildet 2pcs Metal Inductive Proximity Sensor Detection Switch, LJ12A3-4-Z/BX Detector 4mm 6-36 VDC 300 mA NPN Normally Open (NO) 3-Wire

The Gebildet Inductive Proximity Sensor is designed for ease of use with its pre-soldered connector, allowing you to plug and play without hassle. It features power supply reversal protection and short-circuit protection, ensuring a reliable connection with your PLC. With a detection distance of 4mm and a supply voltage of 6-36V, this sensor is perfect for detecting metal objects. The operating red LED provides visual feedback on the sensor's operation state, making it simple to monitor its functionality.

What We Like
Easy plug-and-play installation
Reliable protection features
Suitable for metal detection
Visual operation indicator
#TOP 3

Heschen M12 Inductive Proximity Sensor Switch

HS-LJ12A3-4-Z/BY
Blue
Heschen M12 Inductive Proximity Sensor Switch Cover
Heschen M12 Inductive Proximity Sensor Switch, Non-shield Type, LJ12A3-4-Z/BY Detector, 4mm, 10-30 VDC, 200mA, PNP NO, 3 Wire, Magnetic Metal, IP67, Blue

The Heschen M12 Sensor is a versatile inductive proximity switch ideal for detecting magnetic metals. With a mounting hole diameter of 12mm and a generous cable length of 120cm, installation is both simple and flexible. Its detecting distance of 4mm ensures precise detection, which is essential for efficient automation processes. Operating within a voltage range of 10-30 VDC, this sensor offers reliable performance, allowing you to use it in various applications without concern for power compatibility.

What We Like
Easy installation
Precise detection
Wide voltage range
Detects magnetic metals
#TOP 4

sourcing map SN04-N 4mm Inductive Proximity Sensor

a13050700ux0160
sourcing map SN04-N 4mm Inductive Proximity Sensor Cover
sourcing map SN04-N NPN NO 4mm Inductive Proximity Sensor Switch 3Wire DC 10-30V 2M

The SN04-N Proximity Sensor is a versatile device designed to detect objects made of iron within a 4mm range. Operating on a DC voltage of 10-30V, this inductive proximity switch ensures reliable performance in various applications. With its 3-wire configuration, you can easily integrate it into your existing systems. The compact size of 3.6 x 1.8 x 1.8cm makes it convenient to install in tight spaces, while the durable ABS plastic construction enhances its longevity.

What We Like
Compact and lightweight design
Reliable iron detection
Easy integration with systems
Durable ABS plastic material
Long cable length for flexibility
#TOP 5

Heschen M12 Inductive Proximity Sensor Switch

HS-LJ12A3-2-Z/BY
Blue
Heschen M12 Inductive Proximity Sensor Switch Cover
Heschen M12 Inductive Proximity Sensor Switch Shield Type LJ12A3-2-Z/BY Detector 2mm 10-30VDC 200mA PNP Normally Open(NO) 3 Wire (1)

The Heschen M12 Sensor is designed for convenience and precision. With a mounting hole diameter of 12mm and a cable length of 120cm, it fits easily into various setups. The detecting distance is impressive, allowing you to sense objects at 2mm with a slight tolerance. Operating within a voltage range of 10-30 VDC, it ensures versatility in different environments. This sensor's PNP Normally Open output type enables seamless integration into your systems, providing reliable performance for detecting magnetic metals.

What We Like
Compact design for easy installation
Precise detecting distance
Wide voltage range
Reliable PNP output
Suitable for magnetic metal detection
#TOP 6

Heschen M12 Inductive Proximity Sensor Switch

HS-LJ12A3-2-Z/CY
Blue
Heschen M12 Inductive Proximity Sensor Switch Cover
Heschen M12 Inductive Proximity Sensor Switch, Shield Type, LJ12A3-2-Z/CY, Detector 2mm, 10-30VDC 200mA, PNP NO+NC, 4 Wire

The Heschen M12 Sensor is designed for precision detection with a mounting hole diameter of 12mm and a generous cable length of 120cm. With a detecting distance of 2mm, you can rely on this sensor to accurately identify objects, ensuring efficient operation in various applications. The output type includes both PNP Normally Open and Normally Closed configurations, giving you flexibility in how you integrate it into your systems. Operating on a current output of 200mA and a voltage range of 10-30 VDC, it provides robust performance tailored to your needs.

What We Like
Compact design for easy installation
Accurate detection at 2mm
Flexible output configurations
Wide voltage range
#TOP 7

Heschen M8 Inductive Proximity Sensor Switch

HS-LJ8A3-2-Z/BX
Bule
Heschen M8 Inductive Proximity Sensor Switch Cover
Heschen M8 Inductive Proximity Sensor Switch Non-Shield Type LJ8A3-2-Z/BX Detector 2mm 10-30VDC 200mA NPN Normally Open(NO) 3 Wire

The Heschen M8 Sensor is designed for efficient object detection, particularly for magnetic metals. With a mounting hole diameter of 8mm and a cable length of 120cm, it offers easy installation and flexibility in various setups. The detecting distance of 2mm±10% ensures precise detection, providing you with reliable performance. Operating within a voltage range of 10-30 VDC and with a current output of 200mA, this sensor is ideal for a range of applications, ensuring convenience and ease of use.

What We Like
Easy installation
Precise detection
Flexible cable length
Reliable performance
Ideal for magnetic metals
#TOP 8

LJ12A3-4-Z/AY Inductive Proximity Sensor Switch

14789-1
LJ12A3-4-Z/AY
LJ12A3-4-Z/AY Inductive Proximity Sensor Switch Cover
2Pcs LJ12A3-4-Z/AY M12 Approach Sensor Inductive Proximity Sensor Switch Detector Non-Shield Type PNP NC DC 6-36V 200mA 4mm Detecting Distance 3 Wire for 3D Printer Probe Bed Leveling,MCU Board

The DORHEA Proximity Sensor is an inductive switch designed to detect iron objects sensitively. It operates with a supply voltage of DC 6-36V and features a three-wire system for easy integration. With a detecting distance of 4mm, it is ideal for applications that require precise control and switching. The robust ABS material detection surface enhances durability, ensuring reliable performance in various environments. This sensor is particularly useful in mechanical automation and 3D printer bed leveling, providing users with efficient and contactless operation.

What We Like
Sensitive detection capabilities
Wide voltage range
Durable ABS material
Easy integration
Versatile applications
#TOP 9

Youmile SN04-N Inductive Proximity Sensor Switch

DR-YM-683
Youmile SN04-N Inductive Proximity Sensor Switch Cover
Youmile 2PCS DC 6-36V Inductive Proximity Sensor Switch SN04-N 300mA 4mm Auto Leveling Sensor NPN NO Three Wire Proximity Switch with 2PCS Bracket

The Youmile SN04-N Sensor is a versatile inductive proximity switch designed for efficiency. Operating on a DC voltage range of 6-36V, this sensor provides a current output of 300mA, ensuring reliable performance in various applications. The ABS plastic shell guarantees durability, making it suitable for long-term use. With a detection distance of 4mm, it effectively identifies metal or iron objects, allowing you to automate tasks with ease, such as in DIY 3D printing projects.

What We Like
Durable ABS plastic construction
Wide voltage range
Effective metal detection
Easy to use for automation
#TOP 10

Heschen M6 Inductive Proximity Sensor Switch

HS-LJ6A3-1-Z/BX
Grey
Heschen M6 Inductive Proximity Sensor Switch Cover
Heschen M6 Inductive Proximity Sensor Switch Shield Type LJ6A3-1-Z/BX Detector 1mm 10-30VDC 150mA NPN Normally Open(NO) 3 Wire

The Heschen M6 Sensor is designed for efficient detection of magnetic metals. With a mounting hole diameter of 6mm and a cable length of 200cm, it offers flexibility in installation. The detecting distance of 1.5mm ensures precise object detection, making it useful in various applications. Operating between 10-30 VDC, it provides a reliable power range, allowing you to integrate it easily into your systems. Its NPN Normally Open output type ensures that it only activates when a metal object is detected, enhancing safety and efficiency in your projects.

What We Like
High sensitivity detection
Flexible installation options
Reliable power range
NPN Normally Open output
Buying Guide Image

Frequently Asked Questions (FAQs)

1. How do Inductive proximity sensors work?

Inductive Proximity Sensor Working Principle Inductive sensors work by detecting eddy currents causing magnetic loss, generated by external magnetic fields on a conductive surface. The detection coil generates an AC magnetic field, and impedance changes are detected as a result of generated eddy currents.

2. What are the two types of inductive sensor?

Inductive Proximity Sensors are roughly classified into the following three types according to the operating principle: the high-frequency oscillation type using electromagnetic induction, the magnetic type using a magnet, and the capacitance type using the change in capacitance.

3. What can a proximity sensor detect?

Proximity sensors detect the presence or absence of objects using electromagnetic fields, light, and sound. There are many types, each suited to specific applications and environments. Proximity sensors detect the presence or absence of objects using electromagnetic fields, light, and sound.

4. What can inductive sensor sense?

Inductive proximity sensors can only detect metal targets. They do not detect non-metal targets such as plastic, wood, paper, and ceramic. Unlike photoelectric sensors, this allows a inductive proximity sensors to detect a metal object through opaque plastic.

Editor's Notes

During our inductive proximity sensor research, we found 257 inductive proximity sensor products and shortlisted 10 quality products. We collected and analyzed 6,149 customer reviews through our big data system to write the inductive proximity sensors list. We found that most customers choose inductive proximity sensors with an average price of £6.86.

The inductive proximity sensors are available for purchase. We have researched hundreds of brands and picked the top brands of inductive proximity sensors, including AZDelivery, Gebildet, Heschen, Uxcell, DORHEA. The seller of top 1 product has received honest feedback from 291 consumers with an average rating of 4.8.

Written by
Kenneth Collin Avatar

Kenneth Collin graduated from Imperial College, London, at 22. He is a UX/UI designer, a web developer, and a writer, amongst others. At age 14, Kenneth programmed his first app. Kenneth's app served as a remote control for censored devices. "When I was 8, I would pick up scraps from electronics and try to rebuild or at least fix them," Kenneth said in one of his recent articles on Home repairs for top gadgets.