{"product_id":"omron-ultra-small-and-ultra-thin-amplifier-built-in-photoelectric-sensor-e3t-st21-m1tj-0-3m","title":"Omron ultra-small and ultra-thin amplifier built-in photoelectric sensor; E3T-ST21-M1TJ 0.3M","description":"\u003c!-- koeedmro-seo-v1 --\u003e\n\u003c!-- kmdro-seo-v2 (AI-enhanced) --\u003e\n\u003cstyle\u003e.kmdro-seo{margin:24px 0;font-size:15px;line-height:1.6;color:#333}\n.kmdro-seo *{box-sizing:border-box}\n.kmdro-seo-badges{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 6px}\n.kmdro-seo-badge{display:inline-block;padding:5px 12px;border-radius:4px;font-size:13px;font-weight:600}\n.kmdro-seo-badge--stock{background:#e8f5e9;color:#1b5e20}\n.kmdro-seo-badge--warranty{background:#fce477;color:#121212}\n.kmdro-seo-badge--ship{background:#fff3e0;color:#e65100}\n.kmdro-seo h2{font-size:20px;margin:26px 0 10px;padding-bottom:6px;border-bottom:2px solid #e4e4ea;color:#121212}\n.kmdro-seo table{width:100%;border-collapse:collapse;margin:12px 0;background:#fff}\n.kmdro-seo table td{border:1px solid #e0e0e0 !important;padding:10px 14px !important}\n.kmdro-seo table tr:nth-child(even) td{background:#fafafa}\n.kmdro-seo table td:first-child{width:34%;font-weight:600;background:#f3f3f3 !important;color:#444}\n.kmdro-seo-benefits{list-style:none;margin:12px 0;padding:0}\n.kmdro-seo-benefits li{padding:6px 0 6px 28px;position:relative}\n.kmdro-seo-benefits li::before{content:\"\\2713\";position:absolute;left:0;top:6px;width:19px;height:19px;line-height:19px;text-align:center;border-radius:4px;background:#e8f5e9;color:#1b5e20;font-size:12px;font-weight:700}\n.kmdro-seo details{border:1px solid #e0e0e0;border-radius:4px;margin:10px 0;background:#fff;overflow:hidden}\n.kmdro-seo summary{cursor:pointer;padding:12px 16px;font-weight:600;color:#121212;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}\n.kmdro-seo summary::-webkit-details-marker{display:none}\n.kmdro-seo summary::after{content:\"+\";font-size:18px;color:#888;font-weight:400;flex-shrink:0}\n.kmdro-seo details[open] summary::after{content:\"\\2013\"}\n.kmdro-seo details[open] summary{border-bottom:1px solid #eee}\n.kmdro-seo details p{margin:0;padding:12px 16px;color:#555}\n.kmdro-seo-steps{list-style:none;margin:12px 0;padding:0;counter-reset:kmdro-step}\n.kmdro-seo-steps li{counter-increment:kmdro-step;position:relative;padding:8px 0 8px 40px}\n.kmdro-seo-steps li::before{content:counter(kmdro-step);position:absolute;left:0;top:8px;width:26px;height:26px;line-height:26px;text-align:center;border-radius:4px;background:#121212;color:#fff;font-weight:700;font-size:13px}\n.kmdro-seo-note{margin-top:20px;padding:12px 16px;background:#eff0f5;border-left:4px solid #121212;font-size:14px;color:#444}\u003c\/style\u003e\n\u003cdiv class=\"kmdro-seo\"\u003e\n\u003cdiv class=\"kmdro-seo-badges\"\u003e\n\u003cspan class=\"kmdro-seo-badge kmdro-seo-badge--stock\"\u003eIn Stock\u003c\/span\u003e\n\u003cspan class=\"kmdro-seo-badge kmdro-seo-badge--warranty\"\u003e1-Year Warranty\u003c\/span\u003e\n\u003cspan class=\"kmdro-seo-badge kmdro-seo-badge--ship\"\u003eShips Worldwide\u003c\/span\u003e\n\u003c\/div\u003e\n\u003ch2\u003eOMRON E3T-ST21-M1TJ Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n  \u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eE3T-ST21-M1TJ\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eOMRON\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCategory\u003c\/td\u003e\n\u003ctd\u003eIndustrial Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003esensor\u003c\/td\u003e\n\u003ctd\u003ebuilt-in photoelectric sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eapplication\u003c\/td\u003e\n\u003ctd\u003ePLC industry\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003edimension\u003c\/td\u003e\n\u003ctd\u003e0.3M\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMPN\u003c\/td\u003e\n\u003ctd\u003e140604426666\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003enew\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e1-year warranty included\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eAvailability\u003c\/td\u003e\n\u003ctd\u003eShips worldwide · Free domestic delivery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eAbout the E3T-ST21-M1TJ\u003c\/h2\u003e\n\u003cp\u003eThe Omron E3T-ST21-MTJ1 is a built-in photoelectric sensor serving automation applications in the PLC industry. This component functions as a sensing input, helping programmable logic controllers receive detection signals during machine operation. The unit is new and identified by MPN 140604426666. Its 0.3M dimension gives maintenance engineers a reference for the sensor’s physical size. As part of Omron’s industrial automation line, the E3T-ST21-MTJ1 is designed for use in PLC-based control environments. Replacing an existing sensor with this model can support continued uptime on your production equipment.\u003c\/p\u003e\n\u003cp\u003eComponents in the industrial automation category are used to control, monitor, and optimize manufacturing processes and machinery. They enable automated workflows by connecting sensors, controllers, and actuators, ensuring reliable operation, precision, and safety. These parts support system integration, data exchange, and remote supervision, helping facilities reduce downtime and improve efficiency while maintaining consistent production quality across diverse industrial environments.\u003c\/p\u003e\n\u003cp\u003eOMRON is a Japanese leader in industrial automation, known for PLCs, sensors, relays and control components.\u003c\/p\u003e\n\u003cp\u003eEvery order includes a 1-year warranty, and our team can verify compatibility with your existing equipment before you buy — just send us your instruments list.\u003c\/p\u003e\n\u003ch2\u003eWhy Order from koeedmro\u003c\/h2\u003e\n\u003cul class=\"kmdro-seo-benefits\"\u003e\n  \u003cli\u003e1-year warranty on every order\u003c\/li\u003e\n  \u003cli\u003eWorldwide shipping — domestic delivery is free\u003c\/li\u003e\n  \u003cli\u003eCompatibility check before you order — send your instruments list\u003c\/li\u003e\n  \u003cli\u003eBulk and quantity quotes available for multi-part orders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails open\u003e\n  \u003csummary\u003eWhat warranty is included with the E3T-ST21-M1TJ?\u003c\/summary\u003e\n  \u003cp\u003eAll purchases from koeedmro come with a 1-year warranty, including this part. If it does not perform as expected, contact our support team for warranty service.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDoes koeedmro offer bulk or quantity pricing?\u003c\/summary\u003e\n  \u003cp\u003eYes. Send your instruments list with part numbers and quantities, and our team will reply with a quote for the full order — popular with maintenance teams replacing multiple parts at once.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWill this sensor work with my PLC system?\u003c\/summary\u003e\n  \u003cp\u003eThe E3T-ST21-MTJ1 is a built-in photoelectric sensor intended for the PLC industry. To confirm compatibility with your specific equipment, send your instruments list to moritta@koeed.com before purchase.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat is the lead time for shipping?\u003c\/summary\u003e\n  \u003cp\u003ekoeedmro offers worldwide shipping and free domestic delivery. Contact moritta@koeed.com for current lead time specific to your destination.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What warranty is included with the E3T-ST21-M1TJ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"All purchases from koeedmro come with a 1-year warranty, including this part. 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Contact moritta@koeed.com for current lead time specific to your destination.\"}}]}\u003c\/script\u003e\n\u003ch2\u003eHow to Order the E3T-ST21-M1TJ\u003c\/h2\u003e\n\u003col class=\"kmdro-seo-steps\"\u003e\n  \u003cli\u003eSend us your instruments list — part numbers and quantities — by email or the contact page.\u003c\/li\u003e\n  \u003cli\u003eOur team confirms stock, compatibility and pricing for your order.\u003c\/li\u003e\n  \u003cli\u003ePlace your order on this page or through your quote; domestic delivery is free.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cdiv class=\"kmdro-seo-note\"\u003eNeed the E3T-ST21-M1TJ or other spare parts? Send us your instruments list and our team will confirm stock, compatibility and pricing before you order.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- end koeedmro-seo-v1 --\u003e","brand":"OMRON","offers":[{"title":"Default Title","offer_id":44255394988197,"sku":"jd_1030745","price":9000.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/1322\/9477\/files\/Omron_ultra_small_and_ultra_thin_amplifier_built_in_photoelectric_sensor__E3T_ST21_M1TJ_0_3M__1.webp?v=1790284837","url":"https:\/\/koeedmro.com\/tr\/products\/omron-ultra-small-and-ultra-thin-amplifier-built-in-photoelectric-sensor-e3t-st21-m1tj-0-3m","provider":"koeedmro","version":"1.0","type":"link"}