{"product_id":"omron-e3s-ar91-photoelectric-sensor-unit-ships-overnight","title":"E3S-AR91 | Omron Retroreflective Photoelectric Sensor 2m PNP Light-ON\/Dark-ON IP67","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-end=\"396\" data-start=\"144\"\u003eThe Omron E3S-AR91 Photoelectric Sensor Switch is a retroreflective sensor designed for high-speed and reliable object detection in industrial automation systems. Operating on a 10–30 VDC supply, it provides a 2-meter sensing distance with a visible red light source (700 nm) for easy alignment. Featuring PNP output with selectable Light-ON\/Dark-ON operation, a 500 µs response time, and IP67\/NEMA 4X protection, the E3S-AR91 ensures precision detection and durability in harsh industrial environments.\u003c\/p\u003e\n\u003cp class=\"\" data-end=\"574\" data-start=\"284\"\u003e \u003c\/p\u003e\n\u003cp class=\"\" data-end=\"574\" data-start=\"284\"\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable style=\"width: 100%; height: 587.814px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.864%; height: 19.5938px;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9167%; 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: 26.864%; height: 19.5938px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9167%; height: 19.5938px;\"\u003eOmron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.864%; height: 19.5938px;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9167%; height: 19.5938px;\"\u003eIndustrial Sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.864%; height: 19.5938px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9167%; height: 19.5938px;\"\u003eE3S-AR91\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.864%; height: 19.5938px;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9167%; height: 19.5938px;\"\u003ePhotoelectric Sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.864%; height: 19.5938px;\"\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9167%; height: 19.5938px;\"\u003eE3S Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.864%; height: 19.5938px;\"\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9167%; height: 19.5938px;\"\u003eRetroreflective Photoelectric Switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.864%; height: 19.5938px;\"\u003e\u003cstrong\u003eSensing Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9167%; height: 19.5938px;\"\u003eRetroreflective\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.864%; height: 19.5938px;\"\u003e\u003cstrong\u003eSensing Distance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9167%; height: 19.5938px;\"\u003e2 m (78.7 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.864%; height: 19.5938px;\"\u003e\u003cstrong\u003eLight Source\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9167%; height: 19.5938px;\"\u003eRed LED (700 nm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.864%; height: 19.5938px;\"\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9167%; height: 19.5938px;\"\u003e10–30 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 26.864%; height: 39.1875px;\"\u003e\u003cstrong\u003eOutput Configuration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9167%; height: 39.1875px;\"\u003ePNP, Light-ON \/ Dark-ON Selectable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.864%; height: 19.5938px;\"\u003e\u003cstrong\u003eResponse Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9167%; height: 19.5938px;\"\u003e500 µs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.864%; height: 19.5938px;\"\u003e\u003cstrong\u003eConnection Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9167%; height: 19.5938px;\"\u003ePrewired Cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.864%; height: 19.5938px;\"\u003e\u003cstrong\u003eAdjustment Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9167%; height: 19.5938px;\"\u003eTwo-Turn Endless Adjuster with Indicator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.864%; height: 19.5938px;\"\u003e\u003cstrong\u003eHousing Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9167%; height: 19.5938px;\"\u003eIndustrial Plastic or Metal (Series-Dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.864%; height: 19.5938px;\"\u003e\u003cstrong\u003eMounting Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9167%; height: 19.5938px;\"\u003eBracket \/ Screw Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.864%; height: 19.5938px;\"\u003e\u003cstrong\u003eEnclosure Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9167%; height: 19.5938px;\"\u003eNEMA 4X, IEC IP67\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 26.864%; height: 39.1875px;\"\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9167%; height: 39.1875px;\"\u003e-25°C to +55°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.864%; height: 19.5938px;\"\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9167%; height: 19.5938px;\"\u003e-40°C to +70°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.864%; height: 19.5938px;\"\u003e\u003cstrong\u003eIndicators\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9167%; height: 19.5938px;\"\u003eOperation \/ Stability LEDs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.864%; height: 19.5938px;\"\u003e\u003cstrong\u003eProtection Features\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9167%; height: 19.5938px;\"\u003eShort-Circuit, Reverse Polarity, and Surge Protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.864%; height: 19.5938px;\"\u003e\u003cstrong\u003eStandards Compliance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9167%; height: 19.5938px;\"\u003eCE, UL, cUL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 26.864%; height: 39.1875px;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9167%; height: 39.1875px;\"\u003eObject Detection, Positioning, Conveyor Systems, Packaging Lines\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.864%; height: 19.5938px;\"\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9167%; height: 19.5938px;\"\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.864%; height: 19.5938px;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9167%; height: 19.5938px;\"\u003eApprox. 0.2 lbs (90 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 E3S-AR91\u003c\/h4\u003e\n\u003cp\u003eThe E3S-AR91 is part of the Omron E3S Series, a versatile family of photoelectric sensors engineered for high performance, reliability, and ease of use in factory automation. This model employs retroreflective sensing, using a reflector to detect targets within a 2-meter range, minimizing alignment effort and reducing false detections. The sensor integrates a two-turn endless sensitivity adjuster with an indicator LED, allowing precise configuration and visual feedback during setup. Its fast 500 µs response time enables accurate detection of moving objects in conveyor, packaging, and material handling systems. Encased in a rugged housing with IP67 and NEMA 4X ingress protection, the E3S-AR91 withstands dust, moisture, and cleaning environments, ensuring long service life.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRetroreflective Detection: Simplifies installation with a single device and reflector setup.\u003c\/li\u003e\n\u003cli\u003eLong Sensing Range: Detects objects reliably up to 2 meters away.\u003c\/li\u003e\n\u003cli\u003eSelectable Output Mode: PNP output configurable for Light-ON or Dark-ON operation.\u003c\/li\u003e\n\u003cli\u003eFast Response Time: 500 µs for high-speed detection in automated systems.\u003c\/li\u003e\n\u003cli\u003eRed LED Light Source: Visible 700 nm beam simplifies sensor alignment.\u003c\/li\u003e\n\u003cli\u003eTwo-Turn Sensitivity Adjuster: Allows precise manual tuning with visual feedback.\u003c\/li\u003e\n\u003cli\u003eRugged Protection: IP67 and NEMA 4X ratings ensure resistance to water, dust, and washdown conditions.\u003c\/li\u003e\n\u003cli\u003eWide Operating Voltage Range: Operates from 10 to 30 VDC for flexible system integration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe E3S-AR91 delivers the reliability and precision required for high-speed object detection and positioning in industrial automation and packaging applications.\u003c\/p\u003e","brand":"Omron","offers":[{"title":"Default Title","offer_id":50740543979818,"sku":"E3S-AR91","price":554.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/0392\/4266\/files\/s-l1600_c6f6604c-c844-486b-ae9d-d126580edffc.webp?v=1761314867","url":"https:\/\/iqelectro.com\/products\/omron-e3s-ar91-photoelectric-sensor-unit-ships-overnight","provider":"IQElectro","version":"1.0","type":"link"}