--- 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" price: "€ 23.82" currency: EUR in_stock: true reviews_count: 7 url: https://www.desertcart.hr/products/112555448-taiss-2pcs-lj12a3-4-z-bx-proximity-switch-3d-printer store_origin: HR region: Croatia --- # 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 **Price:** € 23.82 **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 - **How much does it cost?** € 23.82 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/112555448-taiss-2pcs-lj12a3-4-z-bx-proximity-switch-3d-printer) ## Best For - Customers looking for quality international products ## Why This Product - 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 Review: Worked as Expected - These worked just fine as an early detection device for a slipping gearbox mount. You just have to connect them correctly. I purchased NPN proximity sensors which are not wired the same as PNP. If connecting to a relay PNP should be wired with the black wire in A1 and A2 going to ground, or reverse for NPN; black wire to A2 and A1 going to positive. Review: Worked Perfectly - Using as homing sensors for my CNC machine. They are the same sensors as the Longmill CNC machine. ## 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 ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.4 out of 5 stars 38 Reviews | ## 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) ![Taiss 2PCS LJ12A3-4-Z/BX Proximity Switch 3D Printer Inductive Proximity Sensor Detection Switch NPN NO DC6-36V 4mm Normally Open - Image 2](https://m.media-amazon.com/images/I/615pLai1VZL.jpg) ![Taiss 2PCS LJ12A3-4-Z/BX Proximity Switch 3D Printer Inductive Proximity Sensor Detection Switch NPN NO DC6-36V 4mm Normally Open - Image 3](https://m.media-amazon.com/images/I/71zwvUZxIYL.jpg) ![Taiss 2PCS LJ12A3-4-Z/BX Proximity Switch 3D Printer Inductive Proximity Sensor Detection Switch NPN NO DC6-36V 4mm Normally Open - Image 4](https://m.media-amazon.com/images/I/51FwHkW1nKL.jpg) ![Taiss 2PCS LJ12A3-4-Z/BX Proximity Switch 3D Printer Inductive Proximity Sensor Detection Switch NPN NO DC6-36V 4mm Normally Open - Image 5](https://m.media-amazon.com/images/I/51CoU7dS5OL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Worked as Expected *by E***. on April 13, 2022* These worked just fine as an early detection device for a slipping gearbox mount. You just have to connect them correctly. I purchased NPN proximity sensors which are not wired the same as PNP. If connecting to a relay PNP should be wired with the black wire in A1 and A2 going to ground, or reverse for NPN; black wire to A2 and A1 going to positive. ### ⭐⭐⭐⭐⭐ Worked Perfectly *by S***T on May 30, 2023* Using as homing sensors for my CNC machine. They are the same sensors as the Longmill CNC machine. ### ⭐⭐⭐⭐ Works well and well priced *by F***E on May 8, 2024* Trianing ## 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.hr/products/112555448-taiss-2pcs-lj12a3-4-z-bx-proximity-switch-3d-printer](https://www.desertcart.hr/products/112555448-taiss-2pcs-lj12a3-4-z-bx-proximity-switch-3d-printer) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-06-09*