--- product_id: 567209822 title: "- LJ12A3-4-Z/BX NPN Inductive Proximity Sensor Detection Switch 4mm Normally Open switch (Piece-1)" brand: "roboelectrixx" price: "53 kr" currency: DKK in_stock: true category: "Roboelectrixx" url: https://www.desertcart.dk/products/567209822-lj12a3-4-z-bx-npn-inductive-proximity-sensor-detection-switch store_origin: DK region: Denmark --- # IP67 waterproof & dustproof 4mm precise detection range 6-36V wide voltage compatibility - LJ12A3-4-Z/BX NPN Inductive Proximity Sensor Detection Switch 4mm Normally Open switch (Piece-1) **Brand:** roboelectrixx **Price:** 53 kr **Availability:** ✅ In Stock ## Summary > ⚙️ Elevate your automation game with precision sensing that never quits! ## Quick Answers - **What is this?** - LJ12A3-4-Z/BX NPN Inductive Proximity Sensor Detection Switch 4mm Normally Open switch (Piece-1) by roboelectrixx - **How much does it cost?** 53 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/567209822-lj12a3-4-z-bx-npn-inductive-proximity-sensor-detection-switch) ## Best For - roboelectrixx enthusiasts ## Why This Product - Trusted roboelectrixx brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Power Flexibility:** Operates seamlessly between 6V and 36V DC, fitting effortlessly into diverse industrial setups. - • **Pinpoint Precision:** Detect metal objects with a razor-sharp 4mm sensing range for flawless automation. - • **Seamless Integration:** 100cm cable length and compact 12mm diameter body for easy installation in tight spaces. - • **Durability Meets Design:** Nickel-plated brass body ensures robust performance and longevity under tough conditions. - • **Industrial-Grade Protection:** IP67 rating guarantees resistance against dust and water, perfect for demanding environments. ## Overview The LJ12A3-4-Z/BX is a high-performance NPN inductive proximity sensor featuring a 4mm detection range, 6-36V DC operating voltage, and IP67-rated nickel-plated brass construction. Designed for reliable metal object detection in industrial environments, it offers a compact form factor with a 100cm cable for versatile installation. ## Description Product Description Product description This Tube Type Inductive Proximity Sensor Detection Switch NPN DC6-36V 4mm Normally Open switch LJ12A3-4-Z/BX is a component widely used in automatic control industry for detecting, controlling, and non-contact switching. When the proximity switch is close to some target object, it will send out control signal. When the metal approaches near-proximity switch sensing area, an Edy Current is induced in metal. Which in turn disturbs the magnetic field produced by the Inductive Proximity Sensor. This change is sensed by the sensor. This inductive proximity switches can be non-contact, no pressure, no spark, quickly issued the electrical command. Accurately reflect the position and the stroke movement mechanism. Positioning accuracy, operating frequency, service life. Easy to install and suitable for harsh environments. This 4mm proximity sensor can detect a variety of metals, miniature size, long life, low price, shielded type installation, anti-interference ability, 1mm detection distance, using for precise positioning of molds, precision machine tools, and robots. LJ12A3-4-Z/BX NPN Inductive Proximity Sensor Detection Switch 4mm Normally Open switch Features Red LED checks the state of the proximity sensor High repeated positioning accuracy High switching frequency Wide voltage range Outer (Theard) Diameter: M12 Antivibration, dust, water and oil prevention Reverse power protection, short circuit protection, directly connecting with PLC Can replace small switches and limit switches Item Descriptions Model: NJK-5002C Supply voltage : 5-30VDC; thread Diameter: 12MM ; thread length: 32MM Detection distance :10mm ; Load current :150MA Output : NPN three lines Output state normally open (NO) Detect objects metal material: Copper plastic components: PBT External leads 1.2 m Output indication LED Proximity Sensor is widely used in automatic control industry for detecting, controlling, and non contact switching. When proximity switch is close to some target object it will send out control signal. MODEL: LJ12A3-4-Z/BX; OUTPUT: NPN, 3 WIRE, NO (NORMAL OPEN); WORK VOLTAGE: 6VDC - 36VDC (24V); OUTPUT CURRENT: 300mA. (SINK); SIZE: DIA. 12 mm. L : 64 mm.(BODY); CABLE LENGTH: 100 cm.; DETECTION RANGE: 4 mm.; DETECTION OF BOJECT: METAL (COPPER, IRON, ALUMINUIM ETC.); PROTECTION: IP67; Material: Nickel plated brass, DETECTION SURFACE: A LJ12A3-4-Z-BX PROXIMITY SENSOR 1X LJ12A3 SENSOR ## Features - MODEL: LJ12A3-4-Z/BX; OUTPUT: NPN, 3 WIRE, NO (NORMAL OPEN); - WORK VOLTAGE: 6VDC - 36VDC (24V); OUTPUT CURRENT: 300mA. (SINK); - SIZE: DIA. 12 mm. L : 64 mm.(BODY); CABLE LENGTH: 100 cm.; DETECTION RANGE: 4 mm.; - DETECTION OF BOJECT: METAL (COPPER, IRON, ALUMINUIM ETC.); - PROTECTION: IP67; Material: Nickel plated brass, DETECTION SURFACE: A ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CC9D7XLH | | Best Sellers Rank | #17,079 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #9 in Inductive Proximity Sensors | | Brand | ROBOELECTRIXX | | Country of Origin | China | | Customer Reviews | 4.1 4.1 out of 5 stars (2) | | Date First Available | 19 July 2023 | | Item Weight | 40 g | | Item part number | 0080 | | Manufacturer | ROBOELECTRIXX | | Number of Memory Sticks | 1 | | Package Dimensions | 10.6 x 8.9 x 1.4 cm; 40 g | ## Images ![- LJ12A3-4-Z/BX NPN Inductive Proximity Sensor Detection Switch 4mm Normally Open switch (Piece-1) - Image 1](https://m.media-amazon.com/images/I/31xRlECiNpL.jpg) ![- LJ12A3-4-Z/BX NPN Inductive Proximity Sensor Detection Switch 4mm Normally Open switch (Piece-1) - Image 2](https://m.media-amazon.com/images/I/21b0qRWbhXL.jpg) ![- LJ12A3-4-Z/BX NPN Inductive Proximity Sensor Detection Switch 4mm Normally Open switch (Piece-1) - Image 3](https://m.media-amazon.com/images/I/31FqJk7ps4L.jpg) ![- LJ12A3-4-Z/BX NPN Inductive Proximity Sensor Detection Switch 4mm Normally Open switch (Piece-1) - Image 4](https://m.media-amazon.com/images/I/31knnql7FvL.jpg) ![- LJ12A3-4-Z/BX NPN Inductive Proximity Sensor Detection Switch 4mm Normally Open switch (Piece-1) - Image 5](https://m.media-amazon.com/images/I/41pNyyjt4CL.jpg) ## Frequently Bought Together - RoboElectrixx LJ12A3-4-Z/BX NPN Inductive Proximity Sensor Detection Switch 4mm Normally Open switch (Piece-1) - RoboCraze UNO R3 SMD Board compatible with Arduino | Development Board with USB cable - Aptechdeals Jumper Wires Male To Male, Male To Female, Female To Female/ Breadboard Jumper Wires (10+10+10) --- ## 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.dk/products/567209822-lj12a3-4-z-bx-npn-inductive-proximity-sensor-detection-switch](https://www.desertcart.dk/products/567209822-lj12a3-4-z-bx-npn-inductive-proximity-sensor-detection-switch) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-04-23*