Best Capacitive Proximity Sensors of 2026

Kenneth Collin Avatar
Kenneth Collin
Last Updated: 2 Feb 2026

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Capacitive proximity sensors are high-performance electronic devices that are designed to detect the presence or absence of objects without physical contact. These sensors use capacitive technology to sense changes in the surrounding environment, allowing them to detect a wide range of materials, including metal, plastic, glass, and liquids. Capacitive proximity sensors are commonly used in industrial automation, robotics, and manufacturing applications where accurate and reliable object detection is critical. With their advanced sensing capabilities and durable construction, these sensors are an excellent choice for businesses looking to improve their operations and increase productivity.

At a Glance: Our Top Picks

Heschen M30 Capacitive Proximity Sensor Switch Cover #TOP 1
Heschen M30 Capacitive Proximity Sensor Switch
ftb score rating icon 9.9
Heschen LJC38A4-20-Z/BX Capacitive Sensor Cover #TOP 2
Heschen LJC38A4-20-Z/BX Capacitive Sensor
ftb score rating icon 9.8
Youmile MPR121 Capacitive Touch Sensor Module Cover #TOP 3
Youmile MPR121 Capacitive Touch Sensor Module
ftb score rating icon 9.6

Top 10 Capacitive Proximity Sensors

#TOP 1

Heschen M30 Capacitive Proximity Sensor Switch

LJC30A3-H-Z/BY
Blue
Heschen M30 Capacitive Proximity Sensor Switch Cover
Heschen M30 Capacitive Proximity Sensor Switch, Non-Shield Type, LJC30A3-H-Z/BY, Detector 1-15mm, 10-30VDC 200mA, PNP Normally Open(NO), 3 Wires

The Heschen M30 Sensor is a versatile capacitive proximity switch designed for ease of use in various applications. With a mounting hole diameter of 30mm and a cable length of 150cm, installation is straightforward. The sensor features a detecting distance of 20mm, allowing you to accurately sense objects within a precise range. Its output type is PNP Normally Open, which provides flexibility in integration with various systems. Operating on a voltage range of 10-30 VDC, this sensor is suitable for a wide range of electronic setups.

What We Like
Easy installation with 30mm diameter
Accurate detection up to 20mm
Flexible integration options
Wide voltage range compatibility
#TOP 2

Heschen LJC38A4-20-Z/BX Capacitive Sensor

HS-LJC38A4-20-Z/BX
Blue
Heschen LJC38A4-20-Z/BX Capacitive Sensor Cover
Heschen capacitive proximity sensor switch LJC38A4-20-Z/BX detector 1-20mm 12-24V DC 300mA NPN Normally Open(NO) 3 wire CE Listed

The Heschen Capacitive Sensor is a reliable choice for detecting objects within a 20mm range. With a mounting hole diameter of 38 x 1.5mm, it is easy to install in various applications. Operating at a voltage of 12-24V DC and providing a current output of 300mA, this sensor is versatile and efficient. Additionally, its non-screen shield type design ensures durability in different environments, making it suitable for a range of uses.

What We Like
Easy installation
Versatile voltage range
Durable design
Efficient current output
#TOP 3

Youmile MPR121 Capacitive Touch Sensor Module

JK-YM-361
Youmile MPR121 Capacitive Touch Sensor Module Cover
Youmile 5 pcs MPR121 Breakout V12 Proximity Capacitive Touch Sensor Module Keyboard Touch Sensor Keyboard Development Board with pin header DuPont cable

The Youmile MPR121 Module is an advanced capacitive touch sensor controller that operates via an I2C interface, allowing you to control up to twelve individual electrodes, which can significantly enhance your projects. With eight additional LED drive pins, you can easily incorporate visual feedback into your designs. This module supports low power operation, making it ideal for battery-powered applications, ensuring your projects are energy-efficient. Its excellent performance at a 16 ms sampling interval ensures quick and reliable touch detection for a seamless user experience.

What We Like
Controls up to twelve electrodes
Includes eight LED drive pins
Low power consumption
Fast touch detection
Made from original components
#TOP 4

Heschen M18 Capacitive Proximity Sensor Switch 10mm

LJC18A3-B-Z/BY
Yellow
Heschen M18 Capacitive Proximity Sensor Switch 10mm Cover
Heschen M18 Capacitive Proximity Sensor Switch Non-Shield Type LJC18A3-B-Z/BY Detector 1-10mm 10-30VDC 200mA PNP Normally Open(NO) 3 Wires

The Heschen M18 Sensor is a capacitive proximity switch designed with an 18mm mounting hole, making it easy for you to install in various settings. It has a detecting distance of 10mm±10%, allowing you to sense objects within a close range accurately. The sensor operates on a PNP normally open output, which simplifies your connection to control systems. With a wide working voltage of 10-30VDC, the sensor offers flexibility for different power supplies. Overall, this sensor is practical and user-friendly for detecting dielectric objects efficiently.

What We Like
Easy mounting with 18mm hole
Accurate 10mm detecting distance
Simple PNP normally open output
Wide 10-30VDC voltage range
#TOP 5

Nimomo Capacitive Proximity Auto Level Sensor ET4

Nimomoe0725gprcu
Nimomo Capacitive Proximity Auto Level Sensor ET4 Cover
Nimomo Capacitive Proximity Switch Normally Open Auto Leveling Sensor Capacitive Detection Switch for 3D Printer ET4 series, for ET4, 4 Pro

The Nimomo ET4 Capacitive Sensor is a reliable and sturdy capacitive proximity switch designed for 3D printers in the ET4 series. With a 470mm wire length and a detection distance of around 5mm, it ensures stable performance, making it easy for you to achieve accurate auto-leveling. Its nickel-plated brass housing and ABS detection surface provide durability, so it can withstand regular use. This sensor can detect various materials including metal, plastic, glass, wood, and even liquids like water or oil, offering versatility in your 3D printing setup.

What We Like
Long 470mm wiring
Durable nickel-plated brass housing
Detects metal and non-metal
Stable, reliable performance
#TOP 6

Heschen M18 Capacitive Proximity Sensor Switch

LJC18A3-H-Z/BX
Blue
Heschen M18 Capacitive Proximity Sensor Switch Cover
Heschen M18 Capacitive Proximity Sensor Switch, Non-Shield Type, LJC18A3-H-Z/BX, Detector 1-10mm, 10-30VDC 200mA, NPN Normally Open(NO), 3 Wires

The Heschen M18 Sensor offers exceptional functionality for detecting various dielectric materials. With a mounting hole diameter of 18mm and a generous cable length of 150cm, installation is both straightforward and versatile. It features a detecting distance of 10mm (±10%), allowing precise measurements that can enhance your project's accuracy. Operating within a voltage range of 10-30VDC and a current output of 200mA, this sensor ensures reliable performance in various applications, making it a valuable tool for your needs.

What We Like
Easy installation with 18mm diameter
Generous 150cm cable length
Precise detecting distance
Reliable voltage and current output
#TOP 7

Heschen M18 Capacitive Proximity Sensor Switch 10mm

LJC18A3-H-Z/BY
Blue
Heschen M18 Capacitive Proximity Sensor Switch 10mm Cover
Heschen M18 Capacitive Proximity Sensor Switch, Non-Shield Type, LJC18A3-H-Z/BY, Detector 1-10mm, 10-30VDC 200mA, PNP Normally Open(NO), 3 Wires

The Heschen M18 Sensor is a reliable capacitive proximity switch designed with an 18mm mounting hole diameter, making it easy to install in various setups. It has a detecting distance of 10mm±10%, allowing you to sense objects within a close range, which is ideal for precise applications. The sensor operates with a PNP Normally Open output type, providing straightforward connectivity and control. With a working voltage range of 10-30VDC, it offers flexibility for different power supplies, ensuring compatibility and convenience for your projects.

What We Like
Easy installation with 18mm hole
Accurate 10mm detecting distance
Simple PNP Normally Open output
Wide 10-30VDC voltage range
#TOP 8

Heschen M18 Capacitive Proximity Sensor Switch 10mm

LJC18A3-B-Z/BX
Blue
Heschen M18 Capacitive Proximity Sensor Switch 10mm Cover
Heschen M18 Capacitive Proximity Sensor Switch Non-Shield Type LJC18A3-B-Z/BX Detector 1-10mm 10-30VDC 200mA NPN normally open(NO) 3 Wires

The Heschen M18 Sensor is designed with an 18mm mounting hole diameter, making it easy to fit into various setups without hassle. Its 150cm cable length offers flexibility in positioning, so you can install it where it’s most convenient. The sensor detects objects up to 10mm away, allowing for precise sensing in your applications. Operating on a voltage range of 10-30VDC, it provides reliable performance in different environments. This makes the Heschen M18 Sensor a practical choice for detecting various materials with ease.

What We Like
Easy to install
Long cable length
Accurate 10mm detection
Wide voltage range
#TOP 9

Heschen LJC30A3-H-Z/AX Capacitive Proximity Sensor

LJC30A3-H-Z/AX
Blue
Heschen LJC30A3-H-Z/AX Capacitive Proximity Sensor Cover
Heschen capacitive proximity sensor switch LJC30A3-H-Z/AX detector 1-15mm 10-30VDC 200mA NPN normally closed(NC) 3 wire

The Heschen LJC30A3 Sensor is a capacitive proximity switch designed with a 30mm mounting hole, making installation straightforward and secure. It offers a detecting distance of 1-15mm, allowing you to sense objects accurately within a close range. Operating on a 10-30VDC power supply with a current output of 200mA, this sensor provides reliable performance for various applications. Additionally, its NPN normally closed output ensures consistent and stable signal transmission, giving you dependable control in your projects.

What We Like
Wide detection range
Easy mounting size
Stable normally closed output
Suitable voltage range
#TOP 10

Heschen M30 Capacitive Proximity Sensor Switch

LJC30A3-H-Z/BX
Blue
Heschen M30 Capacitive Proximity Sensor Switch Cover
Heschen M30 Capacitive Proximity Sensor Switch, Non-Shield Type, LJC30A3-H-Z/BX, Detector 1-15mm, 10-30VDC 200mA, NPN Normally Open(NO), 3 Wires

The Heschen M30 Sensor is a versatile device designed for detecting objects at a distance of 1-15 mm. With a mounting hole diameter of 30 mm and a generous cable length of 150 cm, installation is made easy. The sensor operates within a voltage range of 10-30 VDC, ensuring compatibility with various systems. Additionally, it features a current output of 200 mA, providing reliable performance for your applications. This sensor can detect any dielectric material, making it a valuable tool for a wide range of uses.

What We Like
Easy installation with a long cable
Wide voltage compatibility
Reliable current output
Versatile detection capabilities
Buying Guide Image

Frequently Asked Questions (FAQs)

1. How does a capacitive proximity sensor work?

Capacitive proximity sensors work by detecting changes in capacitance between the sensor and an object. Factors such as distance and the size of the object will affect the amount of capacitance. The sensor simply detects any changes in capacity generated between the two.

2. Where are capacitive proximity sensors used?

When an object is present, that changes the capacitance value and registers as the presences of the object. Capacitive proximity sensors are useful in detecting a wide range of objects. The easiest types of objects to detect are ones with a high density (such as metals) or a high dielectric constant (i.e. water).

3. What is capacitive based sensor?

A capacitive sensor is an electronic device that can detect solid or liquid targets without physical contact. To detect these targets, capacitive sensors emit an electrical field from the sensing end of the sensor. Any target that can disrupt this electrical field can be detected by a capacitive sensor.

4. What is the difference between inductive and capacitive proximity sensors?

Inductive proximity sensors are used for non-contact detection of metallic objects. Where Capacitive Proximity Sensors are used for non-contact detection of both metallic and nonmetallic objects such as liquid, plastic, paper and more.

Editor's Notes

During our capacitive proximity sensor research, we found 108 capacitive proximity sensor products and shortlisted 10 quality products. We collected and analyzed 4,393 customer reviews through our big data system to write the capacitive proximity sensors list. We found that most customers choose capacitive proximity sensors with an average price of £8.98.

The capacitive proximity sensors are available for purchase. We have researched hundreds of brands and picked the top brands of capacitive proximity sensors, including Heschen, Youmile, Nimomo.

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.