---
product_id: 112555448
title: "Taiss 2PCS LJ12A3-4-Z/BX Proximity Switch 3D Printer Inductive Proximity Sensor Detection Switch NPN NO DC6-36V 4mm Normally Open"
brand: "taiss"
price: "$39"
currency: NZD
in_stock: true
reviews_count: 8
url: https://www.desertcart.nz/products/112555448-taiss-2pcs-lj12a3-4-z-bx-proximity-switch-3d-printer
store_origin: NZ
region: New Zealand
---

# 300mA output 4mm detection DC 6-36V Taiss 2PCS LJ12A3-4-Z/BX Proximity Switch 3D Printer Inductive Proximity Sensor Detection Switch NPN NO DC6-36V 4mm Normally Open

**Brand:** taiss
**Price:** $39
**Availability:** ✅ In Stock

## Summary

> 🔍 Discover the Future of Sensing!

## Quick Answers

- **What is this?** Taiss 2PCS LJ12A3-4-Z/BX Proximity Switch 3D Printer Inductive Proximity Sensor Detection Switch NPN NO DC6-36V 4mm Normally Open by taiss
- **How much does it cost?** $39 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/112555448-taiss-2pcs-lj12a3-4-z-bx-proximity-switch-3d-printer)

## Best For

- taiss enthusiasts

## Why This Product

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

## Key Features

- • **Robust Design:** Built to withstand temperatures from -25°C to +55°C, ensuring reliability in any environment.
- • **Rapid Response:** Enjoy a swift response frequency of 150Hz for real-time performance.
- • **Versatile Voltage:** Compatible with a wide voltage range of DC 6-36V for diverse applications.
- • **Precision Detection:** Experience pinpoint accuracy with a 4mm sensing range.
- • **Compact & Lightweight:** Measuring just 6.2 x 2cm and weighing only 44g, it's perfect for tight spaces.

## Overview

The Taiss 2PCS LJ12A3-4-Z/BX Proximity Switch is a high-performance inductive sensor designed for precise detection of metallic objects. With a compact cylindrical design, it operates efficiently within a voltage range of DC 6-36V and features a 4mm detection distance. Ideal for various industrial applications, this sensor is built to endure extreme temperatures and offers a quick response time, making it a reliable choice for modern automation needs.

## Description

Features : 100% Brand New Voltage: DC 6-36V Output current: 300mA 3 Wire Polarity: NPN Dimention: M12x10x55mm Detection Distance: 4 mm Ouput Status: Normally Open Part number: LJ12A3-4-Z/BX Detection objects: Conductor Package Includes: 2x Inductive Proximity Sensor Detection Switch NPN DC6-36V LJ12A3-4-Z/BX

## Features

- Product Name : Inductive Proximity Switch;Model : LJ12A3-4-Z-BX;Wire Type : 3 Wire Type (Black, Brown, Blue);Switch Appearance Type : Cylinder Type
- Theory : Inductive Sensor;Output Type : NPN NO(Normal Open);Thread Diameter : 12mm/0.5" ;Head Diameter : 11.8mm/0.46"
- Detecting Distance : 4mm;Supply Voltage : DC 6-36V;Current Output : 300mA;Response Frequency : 150Hz
- Detect Object : Iron;Operating Temperature : -25°C to +55°C (Non-freezing Condition);Size : 6.2 x 2cm/2.4'' x 0.8'' (L*Max. Dia);Cable Length : 110cm/43.3"
- External Material : Plastic, Alloy;Net Weight : 44g;Color : Silver Tone, Yellow, Gray;Package Content : 2 x Inductive Proximity Switch

## Images

![Taiss 2PCS LJ12A3-4-Z/BX Proximity Switch 3D Printer Inductive Proximity Sensor Detection Switch NPN NO DC6-36V 4mm Normally Open - Image 1](https://m.media-amazon.com/images/I/71ZBJ1nVdnL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works on 5v, senses aluminum within 3mm
*by K***R on July 23, 2025*

Works exactly as described. Using these for all 4 limits on a custom CNC build, they’re working flawlessly on the 5v of the Flexihal breakout. They seem to trigger around ~3mm and are fast enough to stop a crash at 500ipm

### ⭐⭐⭐⭐⭐ Great Product
*by X***X on May 22, 2025*

I love these. I use them along with some 100 pound pull magnets to mount them on my tractor to indicate when it is in 4x4 and when the PTO is engaged.

### ⭐⭐⭐⭐⭐ Exactly as described
*by L***Y on February 10, 2025*

I ordered the two-pack and received both, well packaged. Handy wiring info attached to the harness. I bench tested the sensors and they triggered down to 4 VDC, so I was encouraged that they would work with my 5V Arduino controlled CNC router. I used the first one as a Limit/Homing switch for an upgraded Z axis. Now that I know they work for my intended purpose, I'll be ordering another two-pack to upgrade the other axes from the original mechanical, normally-open limit switches to these normally-closed inductive switches. A NC setup is safer and contactless switches are more accurate, so a win-win for me.Two bonuses are these look awesome on my project, and they have a wide range of adjustability, so mounting them is a snap.

## Frequently Bought Together

- Taiss 2PCS LJ12A3-4-Z/BX Proximity Switch 3D Printer Inductive Proximity Sensor Detection Switch NPN NO DC6-36V 4mm Normally Open
- mxuteuk 2pcs JQX-13FL DC 24V Coil 8 Pin 10A DPDT LED Indicator Electromagnetic Power Relay, with Base, with DIN Rail Slotted Aluminum
- Electromagnetic Power Relay, 8-Pin 10 AMP 24V DC Relay Coil with Socket Base, LED Indicator, DPDT 2NO 2NC - MY5NJ 2PCS [Applicable for DIN Rail System]

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.nz/products/112555448-taiss-2pcs-lj12a3-4-z-bx-proximity-switch-3d-printer](https://www.desertcart.nz/products/112555448-taiss-2pcs-lj12a3-4-z-bx-proximity-switch-3d-printer)

---

*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-26*