{"product_id":"tube-type-inductive-proximity-sensor-detection-switch-npn-dc5-36v-4mm-normally-open-switch-lj12a3-4-z-bx","title":"Tube Type Inductive Proximity Sensor Detection Switch NPN DC5-36V 4mm Normally Open switch LJ12A3-4-Z\/BX","description":"\u003cmeta name=\"description\" content=\"Buy Tube Type Inductive Proximity Sensor Detection Switch NPN DC online in India at best price from The Tech Depot, Bengaluru. Authentic product, 7-day warranty on manufacturing defects, fast delivery across India.\"\u003e\n\u003ch1\u003eTube Type Inductive Proximity Sensor Detection Switch NPN DC5-36V 4mm Normally Open switch LJ12A3-4-Z\/BX\u003c\/h1\u003e\n\n\u003cp\u003e\u003cstrong\u003eQuality electronics from The Tech Depot, Bengaluru. Fast shipping, 7-day warranty on manufacturing defects, expert support.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\n\u003cp\u003eThe LJ12A3-4-Z\/BX is a professional-grade inductive proximity sensor designed for reliable object detection in industrial and automation applications. With its compact tube design, wide voltage range, and precise 4mm detection distance, this NPN sensor delivers consistent performance for metal detection tasks.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eParameter\u003c\/td\u003e\n\u003ctd\u003eDetails\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLJ12A3-4-Z\/BX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensor Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInductive Proximity Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNPN (Normally Open)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC 5V - 36V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDetection Distance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4mm (adjustable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSwitch Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNormally Open (NO)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHousing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTube Type \/ Cylindrical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3-Wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResponse Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFast \u0026amp; Reliable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7-day warranty on manufacturing defects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOriginal\/Authentic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWide Voltage Range\u003c\/strong\u003e - Works with DC 5V to 36V power supplies\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4mm Detection Range\u003c\/strong\u003e - Precise metal object detection\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNPN Output\u003c\/strong\u003e - Compatible with standard industrial controllers\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNormally Open Switch\u003c\/strong\u003e - Activates when metal approaches\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompact Tube Design\u003c\/strong\u003e - Easy installation in tight spaces\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDurable Construction\u003c\/strong\u003e - Built for industrial environments\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFast Response Time\u003c\/strong\u003e - Real-time detection performance\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLow Power Consumption\u003c\/strong\u003e - Energy-efficient operation\u003c\/p\u003e\n\n\u003ch2\u003eWhy Choose This Sensor?\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003e100% Authentic\u003c\/strong\u003e - Sourced from trusted authorized distributors\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFast Delivery\u003c\/strong\u003e - 1-5 day shipping, 7-8 day delivery from Bengaluru warehouse\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Support\u003c\/strong\u003e - 24\/7 technical assistance via email \u0026amp; WhatsApp\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReliable Warranty\u003c\/strong\u003e - Full 7-day warranty on manufacturing defects protection\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompetitive Pricing\u003c\/strong\u003e - Best value for quality components\u003c\/p\u003e\n\n\u003ch2\u003eApplications \u0026amp; Use Cases\u003c\/h2\u003e\n\n\u003ch3\u003eIndustrial Automation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eConveyor belt systems\u003c\/li\u003e\n\u003cli\u003eAssembly line detection\u003c\/li\u003e\n\u003cli\u003eMachine positioning\u003c\/li\u003e\n\u003cli\u003ePart counting systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDIY \u0026amp; Hobbyist Projects\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRobotics and automation projects\u003c\/li\u003e\n\u003cli\u003eSecurity systems\u003c\/li\u003e\n\u003cli\u003eObject detection circuits\u003c\/li\u003e\n\u003cli\u003eArduino\/Raspberry Pi projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProfessional Installations\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eManufacturing equipment\u003c\/li\u003e\n\u003cli\u003eSmart door systems\u003c\/li\u003e\n\u003cli\u003eProximity-based controls\u003c\/li\u003e\n\u003cli\u003eIndustrial sensors\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eEducational Use\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eElectronics learning\u003c\/li\u003e\n\u003cli\u003eSensor technology education\u003c\/li\u003e\n\u003cli\u003eControl system projects\u003c\/li\u003e\n\u003cli\u003eSTEM applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow It Works\u003c\/h2\u003e\n\n\u003cp\u003eThe LJ12A3-4-Z\/BX uses electromagnetic induction to detect ferrous and non-ferrous metal objects. When a metal object enters the 4mm detection zone, the sensor triggers its NPN output, which can be used to control relays, microcontrollers, or other devices.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDetection Range:\u003c\/strong\u003e Up to 4mm from sensor face\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOutput:\u003c\/strong\u003e Switches from OFF to ON when metal detected\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReset:\u003c\/strong\u003e Automatic when metal leaves detection zone\u003c\/p\u003e\n\n\u003ch2\u003eConnection Guide\u003c\/h2\u003e\n\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003ePin\u003c\/td\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrown\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePositive (DC+)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBlue\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNegative (DC-)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBlack\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOutput (NPN)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cem\u003eCompatible with DC 5V, 12V, 24V, and 36V systems\u003c\/em\u003e\n\n\u003ch2\u003eWhat's Included in the Box\u003c\/h2\u003e\n\n\u003cp\u003e1x LJ12A3-4-Z\/BX Inductive Proximity Sensor\u003c\/p\u003e\n\u003cp\u003eTechnical datasheet \u0026amp; documentation\u003c\/p\u003e\n Installation guide \n 24\/7 customer support access \n\n\u003ch2\u003eProduct Quality Assurance\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003e100% Authentic\u003c\/strong\u003e - Verified from authorized suppliers\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuality Tested\u003c\/strong\u003e - Each unit tested before dispatch\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFactory Fresh\u003c\/strong\u003e - Original sealed packaging\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7-day warranty on manufacturing defects\u003c\/strong\u003e - Full manufacturer coverage\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eIs this sensor 100% authentic?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes, absolutely. We source directly from authorized distributors with full authentication verification. Each product comes with verification documentation.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eWhat voltage range does it support?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eThe LJ12A3-4-Z\/BX operates on DC 5V to 36V, making it compatible with most industrial power supplies and microcontroller systems.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eWhat is the detection distance?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eThe sensor has a 4mm detection range, meaning it can detect metal objects up to 4mm away from the sensor face. This distance is adjustable through the sensor's potentiometer.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eIs this NPN or PNP?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eThis is an NPN sensor with Normally Open (NO) output, suitable for standard industrial controllers and microcontroller applications.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eWhat warranty is included?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eFull 7-day warranty on manufacturing defects covering all defects in materials and workmanship. Support available 24\/7 via email and WhatsApp.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eHow fast is shipping?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eWe offer 1-5 day shipping, 7-8 day delivery to most locations across India from our Bengaluru warehouse. Express options available on request.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eCan I use this with Arduino\/Raspberry Pi?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes! The NPN output is fully compatible with Arduino, Raspberry Pi, and other microcontroller platforms. Simply connect to a digital input pin.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eWhat's your return policy?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003c\/details\u003e\n\u003ch2\u003eBuy Tube Type Inductive Proximity Sensor Detection Switch NPN DC5-36V 4mm Normally Open switch LJ12A3-4-Z\/BX Online in India\u003c\/h2\u003e\n\u003cp\u003ePurchase the \u003cstrong\u003eTube Type Inductive Proximity Sensor Detection Switch NPN DC5-36V 4mm Normally Open switch LJ12A3-4-Z\/BX\u003c\/strong\u003e online at \u003ca href=\"https:\/\/thetechdepot.in\"\u003eThe Tech Depot\u003c\/a\u003e - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on \u003cstrong\u003eTube Type Inductive Proximity Sensor Detection Switch NPN DC5-36V 4mm Normally Open switch LJ12A3-4-Z\/BX\u003c\/strong\u003e with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.\u003c\/p\u003e\n\u003cp\u003eLooking to buy \u003cstrong\u003eTube Type Inductive Proximity Sensor Detection Switch NPN DC5-36V 4mm Normally Open switch LJ12A3-4-Z\/BX\u003c\/strong\u003e at the best price in India? The Tech Depot offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.\u003c\/p\u003e","brand":"The Tech Depot","offers":[{"title":"Default Title","offer_id":48745364685057,"sku":"TTD-16554","price":208.82,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/1577\/3185\/files\/6399e46133461c3127cdf32632eb0f98.png?v=1778085122","url":"https:\/\/techdepot.in\/products\/tube-type-inductive-proximity-sensor-detection-switch-npn-dc5-36v-4mm-normally-open-switch-lj12a3-4-z-bx","provider":"Tech Depot India","version":"1.0","type":"link"}