{"product_id":"vl18-4n3240-sick-photoelectric-retroreflective-sensor-m18-37-m","title":"VL18-4N3240 | SICK Photoelectric Retroreflective Sensor M18 3.7 m","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-start=\"21\" data-end=\"474\"\u003eThe SICK VL18-4N3240 is a photoelectric retroreflective sensor engineered for reliable medium-range object detection in industrial automation. Featuring visible red LED light and polarized optics, it delivers consistent switching performance over distances up to 3.7 m. Its robust M18 cylindrical housing supports dependable operation in demanding environments.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable style=\"width: 100%; height: 568.22px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 42.3331%; height: 19.5938px;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.3542%; height: 19.5938px;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 42.3331%; height: 19.5938px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.3542%; height: 19.5938px;\"\u003eSICK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 42.3331%; height: 19.5938px;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.3542%; height: 19.5938px;\"\u003eIndustrial Sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 42.3331%; height: 19.5938px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.3542%; height: 19.5938px;\"\u003eVL18-4N3240\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 42.3331%; height: 19.5938px;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.3542%; height: 19.5938px;\"\u003ePhotoelectric Sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 42.3331%; height: 19.5938px;\"\u003e\u003cstrong\u003eSensor Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.3542%; height: 19.5938px;\"\u003ePhotoelectric retroreflective sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 42.3331%; height: 19.5938px;\"\u003e\u003cstrong\u003eFunctional Principle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.3542%; height: 19.5938px;\"\u003eRetroreflective, polarized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 42.3331%; height: 19.5938px;\"\u003e\u003cstrong\u003eHousing Design\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.3542%; height: 19.5938px;\"\u003eCylindrical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 42.3331%; height: 19.5938px;\"\u003e\u003cstrong\u003eThread Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.3542%; height: 19.5938px;\"\u003eM18 × 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 42.3331%; height: 19.5938px;\"\u003e\u003cstrong\u003eHousing Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.3542%; height: 19.5938px;\"\u003e78 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 42.3331%; height: 19.5938px;\"\u003e\u003cstrong\u003eOptical Axis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.3542%; height: 19.5938px;\"\u003eAxial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 42.3331%; height: 19.5938px;\"\u003e\u003cstrong\u003eSensing Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.3542%; height: 19.5938px;\"\u003e0.05–3.0 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 42.3331%; height: 19.5938px;\"\u003e\u003cstrong\u003eMaximum Sensing Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.3542%; height: 19.5938px;\"\u003eUp to 3.7 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 42.3331%; height: 19.5938px;\"\u003e\u003cstrong\u003eLight Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.3542%; height: 19.5938px;\"\u003eVisible red light\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 42.3331%; height: 19.5938px;\"\u003e\u003cstrong\u003eLight Source\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.3542%; height: 19.5938px;\"\u003eLED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 42.3331%; height: 19.5938px;\"\u003e\u003cstrong\u003eAdjustment Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.3542%; height: 19.5938px;\"\u003ePotentiometer, 270°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 42.3331%; height: 19.5938px;\"\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.3542%; height: 19.5938px;\"\u003e10–30 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 42.3331%; height: 19.5938px;\"\u003e\u003cstrong\u003eCurrent Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.3542%; height: 19.5938px;\"\u003eApprox. 30 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 42.3331%; height: 19.5938px;\"\u003e\u003cstrong\u003eSwitching Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.3542%; height: 19.5938px;\"\u003eNPN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 42.3331%; height: 19.5938px;\"\u003e\u003cstrong\u003eSwitching Mode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.3542%; height: 19.5938px;\"\u003eLight\/Dark switching\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 42.3331%; height: 19.5938px;\"\u003e\u003cstrong\u003eResponse Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.3542%; height: 19.5938px;\"\u003e≤ 2 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 42.3331%; height: 19.5938px;\"\u003e\u003cstrong\u003eSwitching Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.3542%; height: 19.5938px;\"\u003e250 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 42.3331%; height: 19.5938px;\"\u003e\u003cstrong\u003eConnection Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.3542%; height: 19.5938px;\"\u003eM12 male connector, 4-pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 42.3331%; height: 19.5938px;\"\u003e\u003cstrong\u003eHousing Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.3542%; height: 19.5938px;\"\u003eMetal, nickel-plated brass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 42.3331%; height: 19.5938px;\"\u003e\u003cstrong\u003eOptics Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.3542%; height: 19.5938px;\"\u003ePlastic, PMMA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 42.3331%; height: 19.5938px;\"\u003e\u003cstrong\u003eEnclosure Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.3542%; height: 19.5938px;\"\u003eIP67\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 42.3331%; height: 19.5938px;\"\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.3542%; height: 19.5938px;\"\u003e-25 °C to +70 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 42.3331%; height: 19.5938px;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.3542%; height: 19.5938px;\"\u003e120 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About \u003cspan data-sheets-root=\"1\"\u003eVL18-4N3240\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe VL18-4N3240 is part of SICK’s VL18 series of photoelectric sensors, designed for precise retroreflective detection with high resistance to ambient light and reflective backgrounds. It operates with a dedicated reflector and includes a polarizing filter to prevent false switching from shiny surfaces. Sensitivity is adjustable via a 270° potentiometer, enabling fine tuning for different applications. The sensor’s metal housing, IP67 rating, and comprehensive circuit protections make it suitable for continuous industrial use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRetroreflective Photoelectric Principle: Detects objects using reflected light from a dedicated reflector.\u003c\/li\u003e\n\u003cli\u003ePolarized Optics: Minimizes false detection from reflective or glossy surfaces.\u003c\/li\u003e\n\u003cli\u003eExtended Detection Range: Supports sensing distances from 0.05 m up to 3.7 m.\u003c\/li\u003e\n\u003cli\u003eVisible Red LED Light Source: Allows easy alignment and stable optical performance.\u003c\/li\u003e\n\u003cli\u003eAdjustable Sensitivity: 270° potentiometer enables precise detection tuning.\u003c\/li\u003e\n\u003cli\u003eLight\/Dark Switching Selectable: Configurable logic for flexible control integration.\u003c\/li\u003e\n\u003cli\u003eNPN Switching Output: Compatible with standard PLC and industrial control inputs.\u003c\/li\u003e\n\u003cli\u003eRobust M18 Cylindrical Housing: Metal construction for durability in harsh environments.\u003c\/li\u003e\n\u003cli\u003eHigh Environmental Protection: IP67 enclosure rating for dust and moisture resistance.\u003c\/li\u003e\n\u003cli\u003eIntegrated Circuit Protection: Includes reverse polarity and overload protection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe VL18-4N3240 delivers the reliability and precision required for industrial retroreflective photoelectric sensing applications.\u003c\/p\u003e","brand":"SICK","offers":[{"title":"Default Title","offer_id":49104929095936,"sku":"VL18-4N3240","price":351.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/s-l960_ce76fbe4-b9a2-4b79-9ec9-7fc9390dab20.webp?v=1785536412","url":"https:\/\/alotechparts.com\/products\/vl18-4n3240-sick-photoelectric-retroreflective-sensor-m18-37-m","provider":"Alo Tech Solutions","version":"1.0","type":"link"}