{"id":23027,"date":"2025-04-29T11:20:47","date_gmt":"2025-04-29T04:20:47","guid":{"rendered":"https:\/\/kawasan.vn\/?post_type=product&#038;p=23027"},"modified":"2026-09-10T16:09:37","modified_gmt":"2026-09-10T09:09:37","slug":"cong-tac-cam-bien-tiem-can-st13","status":"publish","type":"product","link":"https:\/\/kawasan.vn\/en\/product\/cong-tac-cam-bien-tiem-can-st13\/","title":{"rendered":"ST13 Proximity Sensor Switch"},"content":{"rendered":"<h2><span class=\"ez-toc-section\" id=\"1_CONG_TAC_CAM_BIEN_TIEM_CAN_LA_GI\"><\/span>1. What Is a Proximity Sensor Switch?<span class=\"ez-toc-section-end\"><\/span><\/h2><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_69_1 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" >N\u1ed9i Dung B&agrave;i Vi\u1ebft<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/kawasan.vn\/en\/product\/cong-tac-cam-bien-tiem-can-st13\/#1_CONG_TAC_CAM_BIEN_TIEM_CAN_LA_GI\" title=\"1. What Is a Proximity Sensor Switch?\">1. What Is a Proximity Sensor Switch?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/kawasan.vn\/en\/product\/cong-tac-cam-bien-tiem-can-st13\/#2_DAC_DIEM_NOI_BAT_CUA_CAM_UNG_TIEM_CAN\" title=\"2. Outstanding Features of the Proximity Sensor\">2. Outstanding Features of the Proximity Sensor<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/kawasan.vn\/en\/product\/cong-tac-cam-bien-tiem-can-st13\/#3_CAM_BIEN_TIEM_CAN_THUONG_DUOC_DUNG_O_DAU\" title=\"3. Where Is the Proximity Sensor Commonly Used?\">3. Where Is the Proximity Sensor Commonly Used?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/kawasan.vn\/en\/product\/cong-tac-cam-bien-tiem-can-st13\/#4_CAM_BIEN_TIEM_CAN_HONG_NGOAI_MANG_DEN_NHIEU_LOI_ICH\" title=\"4. INFRARED PROXIMITY SENSORS PROVIDE MANY BENEFITS\">4. INFRARED PROXIMITY SENSORS PROVIDE MANY BENEFITS<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/kawasan.vn\/en\/product\/cong-tac-cam-bien-tiem-can-st13\/#5_VI_SAO_NEN_CHON_CAM_BIEN_TIEM_CAN_HONG_NGOAI_CUA_KAWASAN\" title=\"5. WHY CHOOSE KAWASAN INFRARED PROXIMITY SENSORS?\">5. WHY CHOOSE KAWASAN INFRARED PROXIMITY SENSORS?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/kawasan.vn\/en\/product\/cong-tac-cam-bien-tiem-can-st13\/#6_Cam_ket_tu_Kawasan\" title=\"6. Commitment from Kawasan\">6. Commitment from Kawasan<\/a><\/li><\/ul><\/nav><\/div>\n\n<p>The ST13 proximity sensor is a switch that uses short-range infrared sensing technology. The sensor switch operates by emitting short-range infrared rays with a maximum detection distance of 5 cm.\n\nWhen an object covers the sensor head, the light will turn ON, and when the object is removed, the light will immediately turn OFF. It is mainly used for cabinet doors or similar locations: when the door is opened, the light turns ON, and when the door is closed, the light turns OFF, or vice versa depending on the installation method.<\/p>\n<div class=\"wp-caption aligncenter\" style=\"width: 574px;\">\n<figure style=\"width: 574px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" title=\"ST13 Sensor Switch Structure Diagram\" src=\"https:\/\/kawasan.com.vn\/image\/data\/ST13\/cong-tac-cam-ung-tiem-can-st13%20(2).jpg\" alt=\"S\u01a1 \u0111\u1ed3 c\u1ea5u t\u1ea1o c\u00f4ng t\u1eafc c\u1ea3m bi\u1ebfn ST13\" width=\"574\" height=\"558\" data-cke-saved-src=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2025\/04\/cong-tac-cam-ung-tiem-can-st13-2.jpg\" \/><figcaption class=\"wp-caption-text\">ST13 Sensor Switch Structure Diagram<\/figcaption><\/figure>\n<\/div>\n<div id=\"attachment_5523\" class=\"wp-caption aligncenter\" style=\"width: 587px;\">\n<figure id=\"attachment_5523\" aria-describedby=\"caption-attachment-5523\" style=\"width: 587px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5523\" title=\"Highly suitable for recessed installation in kitchen cabinets and wardrobes\" src=\"https:\/\/kawasan.com.vn\/image\/data\/ST13\/cong-tac-cam-ung-tiem-can-st13%20(8).jpg\" alt=\"Ph\u00f9 h\u1ee3p l\u1eafp \u00e2m t\u1ee7 ch\u00e9n-t\u1ee7 qu\u1ea7n \u00e1o v\u00f4 c\u00f9ng ti\u1ec7n d\u1ee5ng\" width=\"587\" height=\"398\" aria-describedby=\"caption-attachment-5523\" data-cke-saved-src=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2025\/04\/cong-tac-cam-ung-tiem-can-st13-8.jpg\" \/><figcaption id=\"caption-attachment-5523\" class=\"wp-caption-text\">Highly suitable for recessed installation in kitchen cabinets and wardrobes<\/figcaption><\/figure>\n<\/div>\n<p><a href=\"https:\/\/kawasan.com.vn\/cong-tac-cam-ung-tiem-can-st13\" target=\"_blank\" rel=\"noopener noreferrer\" data-cke-saved-href=\"https:\/\/kawasan.com.vn\/cong-tac-cam-ung-tiem-can-st13\">Highly suitable for recessed installation in kitchen cabinets and wardrobes<\/a>\u00a0is commonly used for wardrobe doors, kitchen cabinets, emergency exit doors, and alarm applications when someone opens a door (when connected to an additional alarm siren), and more.<\/p>\n<div id=\"attachment_5529\" class=\"wp-caption aligncenter\" style=\"width: 524px;\">\n<figure id=\"attachment_5529\" aria-describedby=\"caption-attachment-5529\" style=\"width: 543px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5529\" title=\"5 cm proximity distance for turning the light ON\/OFF\" src=\"https:\/\/kawasan.com.vn\/image\/data\/ST13\/cong-tac-cam-ung-tiem-can-st13%20(10).jpg\" alt=\"Kho\u1ea3ng c\u00e1ch ti\u1ec7m c\u1eadn b\u1eadt t\u1eaft \u0111\u00e8n 5cm\" width=\"543\" height=\"594\" aria-describedby=\"caption-attachment-5529\" data-cke-saved-src=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2025\/04\/cong-tac-cam-ung-tiem-can-st13-10.jpg\" \/><figcaption id=\"caption-attachment-5529\" class=\"wp-caption-text\">5 cm proximity distance for turning the light ON\/OFF<\/figcaption><\/figure>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"2_DAC_DIEM_NOI_BAT_CUA_CAM_UNG_TIEM_CAN\"><\/span>2. Outstanding Features of the Proximity Sensor<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li aria-level=\"1\">Detects objects without physical contact or impact, with a maximum sensing distance of up to 5 cm.<\/li>\n<li aria-level=\"1\">Stable operation with good vibration and shock resistance.<\/li>\n<li aria-level=\"1\">Fast response speed and longer service life compared with limit switches.<\/li>\n<li aria-level=\"1\">Compact proximity switch design for easy installation in many locations.<\/li>\n<li aria-level=\"1\">Can be used in different harsh environments, including hot and cold conditions.<\/li>\n<li aria-level=\"1\">Long sensor probe cable makes installation more convenient for large cabinets.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"3_CAM_BIEN_TIEM_CAN_THUONG_DUOC_DUNG_O_DAU\"><\/span>3. Where Is the Proximity Sensor Commonly Used?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>Homes (for wardrobes, kitchen cabinets, and doors): Install the sensor inside wardrobe doors, kitchen cabinet doors, windows, or back doors. Simply connect it to an LED tube light, LED ceiling light, and more. When the door is opened, the light turns on automatically, making it very convenient. It can also be connected to an alarm siren for anti-theft purposes.<\/li>\n<\/ul>\n<div id=\"attachment_5522\" class=\"wp-caption aligncenter\">\n<figure id=\"attachment_5522\" aria-describedby=\"caption-attachment-5522\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5522\" title=\"Sensor switch installed inside a kitchen cabinet for convenient access to stored items\" src=\"https:\/\/kawasan.com.vn\/image\/data\/ST13\/cong-tac-cam-ung-tiem-can-st13%20(7).jpg\" alt=\"C\u00f4ng t\u1eafc c\u1ea3m bi\u1ebfn l\u1eafp trong t\u1ee7 ch\u00e9n ti\u1ec7n cho ng\u01b0\u1eddi d\u00f9ng khi l\u1ea5y \u0111\u1ed3\" width=\"800\" height=\"209\" aria-describedby=\"caption-attachment-5522\" data-cke-saved-src=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2025\/04\/cong-tac-cam-ung-tiem-can-st13-7.jpg\" \/><figcaption id=\"caption-attachment-5522\" class=\"wp-caption-text\">Sensor switch installed inside a kitchen cabinet for convenient access to stored items<\/figcaption><\/figure>\n<\/div>\n<div id=\"attachment_5527\" class=\"wp-caption aligncenter\">\n<figure id=\"attachment_5527\" aria-describedby=\"caption-attachment-5527\" style=\"width: 1544px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5527\" title=\"When the door is closed within approximately 5 cm, the light will turn off.\" src=\"https:\/\/kawasan.com.vn\/image\/data\/ST13\/cong-tac-cam-ung-tiem-can-st13%20(9).jpg\" alt=\"Khi c\u1eeda \u0111\u00f3ng trong kho\u1ea3ng 5cm th\u00ec \u0111\u00e8n s\u1ebd t\u1eaft \u0111\u00e8n\" width=\"1544\" height=\"252\" aria-describedby=\"caption-attachment-5527\" data-cke-saved-src=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2025\/04\/cong-tac-cam-ung-tiem-can-st13-9.jpg\" \/><figcaption id=\"caption-attachment-5527\" class=\"wp-caption-text\">When the door is closed within approximately 5 cm, the light will turn off.<\/figcaption><\/figure>\n<\/div>\n<ul>\n<li>Stores and showrooms (display cabinets for valuable products): Install the sensor inside the display cabinet and connect it to an indicator light and an alarm siren in parallel. If someone opens the cabinet without permission, the light will turn on and the siren will immediately sound an alarm.<\/li>\n<\/ul>\n<div id=\"attachment_5515\" class=\"wp-caption aligncenter\" style=\"width: 596px;\">\n<figure id=\"attachment_5515\" aria-describedby=\"caption-attachment-5515\" style=\"width: 596px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5515\" title=\"Installed in display stores to help save electricity effectively\" src=\"https:\/\/kawasan.com.vn\/image\/data\/ST13\/cong-tac-cam-ung-tiem-can-st13%20(3).jpg\" alt=\"L\u1eafp cho c\u1eeda h\u00e0ng tr\u01b0ng b\u00e0y gi\u00fap ti\u1ebft ki\u1ec7m \u0111i\u1ec7n hi\u1ec7u qu\u1ea3\" width=\"596\" height=\"365\" aria-describedby=\"caption-attachment-5515\" data-cke-saved-src=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2025\/04\/cong-tac-cam-ung-tiem-can-st13-3.jpg\" \/><figcaption id=\"caption-attachment-5515\" class=\"wp-caption-text\">Installed in display stores to help save electricity effectively<\/figcaption><\/figure>\n<\/div>\n<div id=\"attachment_5530\" class=\"wp-caption aligncenter\" style=\"width: 590px;\">\n<figure id=\"attachment_5530\" aria-describedby=\"caption-attachment-5530\" style=\"width: 590px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5530\" title=\"The S13 infrared sensor switch is commonly used in stores\" src=\"https:\/\/kawasan.com.vn\/image\/data\/ST13\/cong-tac-cam-ung-tiem-can-st13%20(1).jpg\" alt=\"C\u00f4ng t\u1eafc c\u1ea3m bi\u1ebfn h\u1ed3ng ngo\u1ea1i S13 th\u01b0\u1eddng d\u00f9ng trong c\u1eeda h\u00e0ng\" width=\"590\" height=\"450\" aria-describedby=\"caption-attachment-5530\" data-cke-saved-src=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2025\/04\/cong-tac-cam-ung-tiem-can-st13-1.jpg\" \/><figcaption id=\"caption-attachment-5530\" class=\"wp-caption-text\">The S13 infrared sensor switch is commonly used in stores<\/figcaption><\/figure>\n<\/div>\n<ul>\n<li>Apartments, residential buildings, office buildings, and factories (for emergency exit doors, cold-room doors, etc.): Most emergency exit doors and cold-room doors are required to remain closed. If someone opens them, the alarm siren will sound immediately. In cases where the door is allowed to open for passage but must be closed again promptly, if it remains open for more than 10\u201330 seconds, the siren will sound to provide a timely warning. (Note: An additional time-delay relay must be installed for this application.)<\/li>\n<\/ul>\n<div id=\"attachment_5517\" class=\"wp-caption aligncenter\" style=\"width: 563px;\">\n<figure id=\"attachment_5517\" aria-describedby=\"caption-attachment-5517\" style=\"width: 563px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5517\" title=\"Suitable for emergency exit doors in office buildings\" src=\"https:\/\/kawasan.com.vn\/image\/data\/ST13\/cong-tac-cam-ung-tiem-can-st13%20(4).jpg\" alt=\"Th\u00edch h\u1ee3p d\u00f9ng cho c\u1eeda tho\u00e1t hi\u1ec3m \u1edf c\u00e1c t\u00f2a nh\u00e0 v\u0103n ph\u00f2ng\" width=\"563\" height=\"422\" aria-describedby=\"caption-attachment-5517\" data-cke-saved-src=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2025\/04\/cong-tac-cam-ung-tiem-can-st13-4.jpg\" \/><figcaption id=\"caption-attachment-5517\" class=\"wp-caption-text\">Suitable for emergency exit doors in office buildings<\/figcaption><\/figure>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"4_CAM_BIEN_TIEM_CAN_HONG_NGOAI_MANG_DEN_NHIEU_LOI_ICH\"><\/span>4. INFRARED PROXIMITY SENSORS PROVIDE MANY BENEFITS<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li aria-level=\"1\">Helps avoid difficulty finding items in low-light conditions, reducing the risk of dropping, breaking, or damaging belongings.<\/li>\n<li aria-level=\"1\">Can be used as an anti-theft device for display cabinet doors or home entry doors. By connecting it to a bell or indicator light, users can monitor people entering and leaving, helping protect property and improve safety for businesses and families.<\/li>\n<li aria-level=\"1\">Helps monitor emergency exit doors in office buildings, apartment complexes, and residential buildings. In the event of a fire, if emergency exit doors are left open, smoke and flames may spread to upper floors, creating a serious danger to life.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"5_VI_SAO_NEN_CHON_CAM_BIEN_TIEM_CAN_HONG_NGOAI_CUA_KAWASAN\"><\/span>5. WHY CHOOSE KAWASAN INFRARED PROXIMITY SENSORS?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li aria-level=\"1\">Kawasan has been a leading sensor-based electrical brand in Vietnam since 2007. Its products are developed based on careful research into the habits of Vietnamese consumers.<\/li>\n<li aria-level=\"1\">The Kawasan ST13 proximity switch is continuously researched and improved in quality. All components are carefully selected to ensure high durability and reliable operation under continuous use and harsh environmental conditions.<\/li>\n<li aria-level=\"1\">Many products on the market use average-quality components with unstable sensitivity. They can easily be affected by changes in weather temperature. Specifically, in cold weather they may become overly sensitive and turn the lights on continuously, while in hot weather above 32\u00b0C, the sensor may fail to activate the light.<\/li>\n<li aria-level=\"1\"><a href=\"https:\/\/kawasan.com.vn\/san-pham.html\/cong-tac-cam-ung.html\/cong-tac-cam-ung-hong-ngoai.html\" target=\"_blank\" rel=\"noopener noreferrer\" data-cke-saved-href=\"https:\/\/kawasan.com.vn\/san-pham.html\/cong-tac-cam-ung.html\/cong-tac-cam-ung-hong-ngoai.html\">Other infrared sensor switches<\/a>\u00a0on the market may have lower prices. However, their quality is often lower and sensitivity may not be properly adjusted. If the sensor is too sensitive, the light may stay on continuously without turning off; if it is not sensitive enough, the light may fail to turn on.<\/li>\n<li aria-level=\"1\">Kawasan products typically have a service life of more than 3 years and come with a 2-year warranty. By comparison, many products on the market last around 1 year and offer warranties ranging from 3 months to 1 year. Although their initial price may be lower, the replacement cost over a 3-year period can actually be much higher.<\/li>\n<\/ul>\n<h2 data-start=\"2260\" data-end=\"2288\"><span class=\"ez-toc-section\" id=\"6_Cam_ket_tu_Kawasan\"><\/span><strong data-start=\"2263\" data-end=\"2288\">6. Commitment from Kawasan<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"2290\" data-end=\"2632\">Kawasan is committed to providing products <strong data-start=\"2324\" data-end=\"2357\">genuine \u2013 durable \u2013 safe<\/strong>, fully meeting technical standards and practical usage requirements.<br data-start=\"2425\" data-end=\"2428\" \/>All products are covered by warranty <strong data-start=\"2458\" data-end=\"2479\">free of charge for 24 months<\/strong>, and continues to receive repair support after the warranty period if the product can still be restored, <strong data-start=\"2568\" data-end=\"2586\">free of charge<\/strong> if the cost of replacement components is insignificant.<\/p>\n<p style=\"text-align: center;\"><strong>Thank you for trusting Kawasan products!<\/strong><\/p>\n<p style=\"text-align: center;\"><strong>Toll-Free Consulting Hotline:\u00a0<\/strong><strong>1800 0058<\/strong><\/p>\n<p style=\"text-align: center;\" align=\"center\"><strong>Website:\u00a0\u00a0<\/strong><a href=\"https:\/\/kawasan.vn\/en\/\"><strong>www.kawasan.vn<\/strong><\/a><\/p>\n<p style=\"text-align: center;\" align=\"center\"><strong>Website:\u00a0\u00a0<\/strong><a href=\"https:\/\/kawaled.com.vn\/\"><strong>www.kawaled.com.vn<\/strong><\/a><\/p>\n<ul data-start=\"2658\" data-end=\"2798\">\n<li data-start=\"2712\" data-end=\"2798\"><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>1. C\u00d4NG T\u1eaeC C\u1ea2M BI\u1ebeN TI\u1ec6M C\u1eacN L\u00c0 G\u00cc? C\u1ea3m bi\u1ebfn ti\u1ec7m c\u1eadn ST13\u00a0l\u00e0 c\u00f4ng t\u1eafc d\u00f9ng c\u00f4ng ngh\u1ec7 c\u1ea3m bi\u1ebfn h\u1ed3ng ngo\u1ea1i kho\u1ea3ng c\u00e1ch g\u1ea7n. C\u00f4ng t\u1eafc c\u1ea3m \u1ee9ng ho\u1ea1t \u0111\u1ed9ng d\u1ef1a v\u00e0o nguy\u00ean l\u00fd ph\u00e1t tia h\u1ed3ng ngo\u1ea1i t\u1ea7m ng\u1eafn kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a 5 cm. Khi c\u00f3 v\u1eadt th\u1ec3 che \u0111\u1ea7u c\u1ea3m [&hellip;]<\/p>","protected":false},"featured_media":23029,"comment_status":"open","ping_status":"closed","template":"","meta":{"_yoast_wpseo_focuskw":"C\u1ea3m bi\u1ebfn ti\u1ec7m c\u1eadn","_yoast_wpseo_metadesc":"C\u1ea3m bi\u1ebfn ti\u1ec7m c\u1eadn ST13\u00a0l\u00e0 c\u00f4ng t\u1eafc d\u00f9ng c\u00f4ng ngh\u1ec7 c\u1ea3m bi\u1ebfn h\u1ed3ng ngo\u1ea1i kho\u1ea3ng c\u00e1ch g\u1ea7n. 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