---
product_id: 53971181
title: "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"
brand: "heschen"
price: "$42"
currency: NZD
in_stock: true
reviews_count: 2
category: "Heschen"
url: https://www.desertcart.nz/products/53971181-heschen-m18-capacitive-proximity-sensor-switch-non-shield-type-ljc18a3
store_origin: NZ
region: New Zealand
---

# 18mm mounting hole diameter 10mm±10% detection distance 10-30VDC wide voltage range 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

**Brand:** heschen
**Price:** $42
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate Your Automation Game with Precision Sensing!

## Quick Answers

- **What is this?** 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 by heschen
- **How much does it cost?** $42 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/53971181-heschen-m18-capacitive-proximity-sensor-switch-non-shield-type-ljc18a3)

## Best For

- heschen enthusiasts

## Why This Product

- Trusted heschen brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile Application Ready:** Perfect for smart manufacturing, automation, and precision control environments demanding responsive sensing.
- • **Robust and Reliable Power Handling:** Operates efficiently within 10-30VDC and supports up to 200mA current output for stable performance.
- • **Precision Detection at Your Fingertips:** Detects dielectric materials like plastic, glass, and metal up to 10mm away with ±10% accuracy.
- • **Seamless Integration with Industry Standards:** Standard 18mm mounting hole and 150cm cable length for flexible, hassle-free installation.
- • **Non-Contact Switching for Ultimate Durability:** NPN Normally Open output ensures wear-free, maintenance-light operation in automated control systems.

## Overview

The Heschen M18 Capacitive Proximity Sensor Switch (LJC18A3-H-Z/BX) is a high-precision, non-contact sensor designed for industrial automation. Featuring an 18mm mounting hole, 10mm detection range, and wide 10-30VDC operating voltage, it reliably detects dielectric materials with a 200mA current output. Its NPN Normally Open configuration and 150cm cable length make it ideal for seamless integration into advanced control systems, ensuring durable and maintenance-free operation.

## Description

The LJC18A3 capacitive proximity sensor switch used widely in automatic control industry for detecting, controlling, and noncontact switching. It will send a signal when close to the plastic, glass, metal etc.

Review: Works perfectly on an MKS Gen 1.4 - Works perfectly with a MKS Gen 1.4 board, take the black and blue wire and make a switch plug for the Z axis and run the brown wire of one of the 12v pins.
Review: 2-3mm max, even using a spring steel magnetic plate :( - decided to try this instead of a bltouch, advertised as up to 10mm from the plate, i've got a spring steel magnetic plate and the sensor needs to be 2mm ish from it before it will detect anything. can't return it because i had to change the connector to fit my printer.

## Features

- Mounting Hole Diameter: 18mm; Cable Length: 150cm/59"
- Detecting Distance: 10mm±10%; Set Distance: 0-8mm
- Output Type: NPN Normally Open(NO); Non-Shield Type
- Current Output: 200mA; Working Voltage: 10-30VDC
- Detect Object: Can Detect Any Dielectric

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B071J6PXD1 |
| Actuator Type | Plunger |
| Best Sellers Rank | 97,295 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 26 in Capacitive Proximity Sensors |
| Brand | Heschen |
| Circuit Type | 3-way |
| Colour | Blue |
| Connectivity Protocol | Bluetooth |
| Connector Type | Wire Leads |
| Connector type | Wire Leads |
| Contact Material | Plastic |
| Contact Type | Normally Open |
| Contact type | Normally Open |
| Control Method | Remote |
| Country Of Origin | China |
| Current Rating | 18 Amps |
| Current rating | 18 Amps |
| Customer Reviews | 4.2 out of 5 stars 337 Reviews |
| International Protection Rating | IP54 |
| Item Dimensions | 10 x 8 x 2 centimetres |
| Manufacturer | Heschen Electric Co.Ltd |
| Material | Metal, Plastic |
| Model Number | LJC18A3-H-Z/BX |
| Mounting Type | Panel Mount |
| Number of Items | 1 |
| Number of Positions | 1 |
| Operating Voltage | 30 Volts |
| Operating voltage | 30 Volts |
| Operation Mode | ON-OFF |
| Operation mode | ON-OFF |
| Switch Type | NPN Transistor |
| Terminal | Screw |
| UPC | 670534170458 |
| Unit Count | 1.0 count |

## Product Details

- **Operation mode:** ON-OFF
- **Current rating:** 18 Amps
- **Operating voltage:** 30 Volts
- **Contact type:** Normally Open
- **Connector type:** Wire Leads
- **Brand:** Heschen
- **Terminal:** Screw
- **Item dimensions L x W x H:** 10 x 8 x 2 centimetres
- **Circuit type:** 3-way
- **Mounting type:** Panel Mount

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/613O-wGHGoL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works perfectly on an MKS Gen 1.4
*by S***R on 9 December 2018*

Works perfectly with a MKS Gen 1.4 board, take the black and blue wire and make a switch plug for the Z axis and run the brown wire of one of the 12v pins.

### ⭐⭐⭐ 2-3mm max, even using a spring steel magnetic plate :(
*by J***E on 4 August 2021*

decided to try this instead of a bltouch, advertised as up to 10mm from the plate, i've got a spring steel magnetic plate and the sensor needs to be 2mm ish from it before it will detect anything. can't return it because i had to change the connector to fit my printer.

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-16*