{"id":27535,"date":"2025-09-08T14:14:04","date_gmt":"2025-09-08T07:14:04","guid":{"rendered":"https:\/\/kawasan.vn\/?post_type=product&#038;p=27535"},"modified":"2026-11-11T11:35:21","modified_gmt":"2026-11-11T04:35:21","slug":"dau-beam-bao-trom-s20m","status":"publish","type":"product","link":"https:\/\/kawasan.vn\/en\/product\/dau-beam-bao-trom-s20m\/","title":{"rendered":"KAWASAN B20M Wired Dual-Beam Infrared Security Barrier"},"content":{"rendered":"<h1 data-path-to-node=\"3\"><span class=\"ez-toc-section\" id=\"Thiet_Bi_Hang_Rao_Chong_Trom_Hong_Ngoai_2_Tia_Kawasan_B20M\"><\/span>KAWASAN B20M Dual-Beam Infrared Intrusion Detection Barrier<span class=\"ez-toc-section-end\"><\/span><\/h1><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-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/kawasan.vn\/en\/product\/dau-beam-bao-trom-s20m\/#Thiet_Bi_Hang_Rao_Chong_Trom_Hong_Ngoai_2_Tia_Kawasan_B20M\" title=\"KAWASAN B20M Dual-Beam Infrared Intrusion Detection Barrier\">KAWASAN B20M Dual-Beam Infrared Intrusion Detection Barrier<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/kawasan.vn\/en\/product\/dau-beam-bao-trom-s20m\/#1_Gioi_Thieu_Thiet_Bi_Chong_Trom_Hong_Ngoai_B20M\" title=\"1. Introduction to the B20M Infrared Security Barrier\">1. Introduction to the B20M Infrared Security Barrier<\/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\/dau-beam-bao-trom-s20m\/#2_Thong_So_Ky_Thuat_He_Thong_Chong_Trom_Hong_Ngoai_B20M\" title=\"2. Technical Specifications of the B20M Infrared Security System\">2. Technical Specifications of the B20M Infrared Security System<\/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\/dau-beam-bao-trom-s20m\/#3_Dac_Tinh_Noi_Bat_Cua_Thiet_Bi_Chong_Trom_Hong_Ngoai_Kawasan\" title=\"3. Key Features of the KAWASAN Infrared Security Barrier\">3. Key Features of the KAWASAN Infrared Security Barrier<\/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\/dau-beam-bao-trom-s20m\/#4_Ung_Dung_Thuc_Te_Hang_Rao_Chong_Trom_Hong_Ngoai\" title=\"4. Practical Applications of the Infrared Security Barrier\">4. Practical Applications of the Infrared Security Barrier<\/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\/dau-beam-bao-trom-s20m\/#5_Huong_Dan_Su_Dung_Mach_Chong_Trom_Hong_Ngoai_B20M\" title=\"5. Installation and Operating Instructions for the B20M Infrared Security System\">5. Installation and Operating Instructions for the B20M Infrared Security System<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/kawasan.vn\/en\/product\/dau-beam-bao-trom-s20m\/#TAI_SAO_NEN_CHON_THUONG_HIEU_KAWASAN\" title=\"WHY CHOOSE THE KAWASAN BRAND?\">WHY CHOOSE THE KAWASAN BRAND?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/kawasan.vn\/en\/product\/dau-beam-bao-trom-s20m\/#CAM_KET_CHAT_LUONG_TU_KAWASAN\" title=\"KAWASAN QUALITY COMMITMENT\">KAWASAN QUALITY COMMITMENT<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/kawasan.vn\/en\/product\/dau-beam-bao-trom-s20m\/#THONG_TIN_LIEN_HE_DAT_HANG_CHINH_HANG\" title=\"CONTACT INFORMATION FOR PURCHASING GENUINE KAWASAN PRODUCTS\">CONTACT INFORMATION FOR PURCHASING GENUINE KAWASAN PRODUCTS<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n\n<h2 data-path-to-node=\"4\"><span class=\"ez-toc-section\" id=\"1_Gioi_Thieu_Thiet_Bi_Chong_Trom_Hong_Ngoai_B20M\"><\/span>1. Introduction to the B20M Infrared Security Barrier<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-path-to-node=\"5\">The KAWASAN B20M is a premium wired dual-beam infrared intrusion detection barrier, part of KAWASAN's high-quality security product range.\n\nFeaturing a compact design, accurate detection technology, and excellent durability, this infrared security system provides effective security monitoring for homes, villas, warehouses, entrance gates, and gardens.\n\nThe device is particularly suitable for users who need a wired infrared perimeter protection system with a maximum detection range of 20m outdoors.<\/p>\n<p data-path-to-node=\"6\">The product retains all the key advantages of the previous B30M model, including short-circuit protection, interference resistance, and intelligent false alarm prevention technology.\n\nHowever, the B20M infrared intrusion detection system has been specifically optimized for shorter installation distances, making it more suitable for areas requiring short- to medium-range security protection, with a detection range of approximately 20m outdoors and up to 30m indoors.<\/p>\n<h2 data-path-to-node=\"7\"><span class=\"ez-toc-section\" id=\"2_Thong_So_Ky_Thuat_He_Thong_Chong_Trom_Hong_Ngoai_B20M\"><\/span>2. Technical Specifications of the B20M Infrared Security System<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-path-to-node=\"8\">The following table provides the estimated technical specifications of the device, based on the B30M series.<\/p>\n<table>\n<thead>\n<tr>\n<td>Specifications<\/td>\n<td>Estimated B20M Specifications<\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Detection Rang<\/td>\n<td>Approximately 20m Outdoors (30m Indoors)<\/td>\n<\/tr>\n<tr>\n<td>Beam Adjustment Angle<\/td>\n<td>\u00b190\u00b0 Horizontally, \u00b115\u00b0 Vertically<\/td>\n<\/tr>\n<tr>\n<td>Response Time<\/td>\n<td>50 \u2013 700 ms<\/td>\n<\/tr>\n<tr>\n<td>Alarm Output<\/td>\n<td>NO\/NC (120V \/ 1A)<\/td>\n<\/tr>\n<tr>\n<td>Power Supply<\/td>\n<td>AC\/DC 12 ~ 24 V<\/td>\n<\/tr>\n<tr>\n<td>Dimensions (H \u00d7 W \u00d7 D)<\/td>\n<td>173 x 74 x 72 mm<\/td>\n<\/tr>\n<tr>\n<td>Total Weight<\/td>\n<td>Approximately 1.1 kg<\/td>\n<\/tr>\n<tr>\n<td>Protection Rating<\/td>\n<td>IP66 (Dust-Tight and Protected Against Powerful Water Jets)<\/td>\n<\/tr>\n<tr>\n<td>Component Service Life<\/td>\n<td>Over 5 Years of Continuous Operation<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 data-path-to-node=\"10\"><span class=\"ez-toc-section\" id=\"3_Dac_Tinh_Noi_Bat_Cua_Thiet_Bi_Chong_Trom_Hong_Ngoai_Kawasan\"><\/span>3. Key Features of the KAWASAN Infrared Security Barrier<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul data-path-to-node=\"11\">\n<li>\n<p data-path-to-node=\"11,0,0\">High Detection Accuracy with Fewer False Alarms: Thanks to advanced signal processing technology and two parallel infrared beams, the infrared intrusion detection system can help distinguish human intrusion from smaller objects such as animals, flying birds, or falling leaves, reducing unnecessary alarm activation.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"11,1,0\">Resistance to Harsh Weather Conditions: The device features an IP66 protection rating and a high-quality ABS plastic housing. This allows the infrared security system to operate reliably outdoors in challenging conditions, including heavy rain, wind, dust, and high humidity.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"11,2,0\">Long Service Life and Lower Maintenance Costs: High-quality components help extend the device's service life to more than 5 years, reducing maintenance and replacement costs.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"11,3,0\">Flexible Alarm Output and Easy Integration: The device supports wired signal connections to central alarm systems, standalone sirens, and rotating warning lights. Its alarm output is compatible with the common NO\/NC contact configurations.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"11,4,0\">Compact and Attractive Design: The infrared security barrier can be installed on walls, entrance gates, or security posts without affecting the appearance of the surrounding architecture.<\/p>\n<\/li>\n<\/ul>\n<h2 data-path-to-node=\"12\"><span class=\"ez-toc-section\" id=\"4_Ung_Dung_Thuc_Te_Hang_Rao_Chong_Trom_Hong_Ngoai\"><\/span>4. Practical Applications of the Infrared Security Barrier<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-path-to-node=\"13\">The KAWASAN B20M Infrared Intrusion Detection Barrier is a suitable security solution for various environments:<\/p>\n<ul data-path-to-node=\"14\">\n<li>\n<p data-path-to-node=\"14,0,0\">Residential and Public Facilities: Monitors corridors and perimeter walls at houses, private villas, resorts, temples, hospitals, and similar locations.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"14,1,0\">Industrial and Commercial Facilities: Provides perimeter protection for warehouses, factories, businesses, and stadiums.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"14,2,0\">Agricultural Areas: Creates intrusion detection boundaries around orchards, flower gardens, livestock farms, and aquaculture facilities.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"14,3,0\">Short-Range Security Applications: Suitable for areas requiring protection over distances of approximately 20m, such as main entrances, balconies, and important locations around buildings.<\/p>\n<\/li>\n<\/ul>\n<h2 data-path-to-node=\"15\"><span class=\"ez-toc-section\" id=\"5_Huong_Dan_Su_Dung_Mach_Chong_Trom_Hong_Ngoai_B20M\"><\/span>5. Installation and Operating Instructions for the B20M Infrared Security System<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul data-path-to-node=\"16\">\n<li>\n<p data-path-to-node=\"16,0,0\">Preparation Before Installation: Disconnect the main power supply completely to ensure safety. Select suitable mounting positions so that the transmitter and receiver are properly aligned and face each other, with a distance of no more than 20m outdoors.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"16,1,0\">Signal Wiring: Connect an AC\/DC 12\u201324V power supply to the device's power terminals. Connect the NO\/NC alarm output to a central alarm panel or compatible siren according to the installation requirements.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"16,2,0\">System Operation: When an intruder simultaneously interrupts both infrared beams, the device immediately activates its alarm output, sending a signal to trigger a connected siren or warning light to deter the intruder.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"16,3,0\">Regular Maintenance: Clean the infrared lenses on both the transmitter and receiver to prevent dust, dirt, or spider webs from reducing signal strength and causing false alarms.<\/p>\n<\/li>\n<\/ul>\n<blockquote data-path-to-node=\"17\">\n<p data-path-to-node=\"17,0\">Summary: The KAWASAN B20M Infrared Intrusion Detection Barrier is a smart, durable, and aesthetically designed security solution for areas requiring short-range protection of approximately 20m. The product provides complete peace of mind for your living and working spaces.<\/p>\n<\/blockquote>\n<h2 data-path-to-node=\"19\"><span class=\"ez-toc-section\" id=\"TAI_SAO_NEN_CHON_THUONG_HIEU_KAWASAN\"><\/span>WHY CHOOSE THE KAWASAN BRAND?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul data-path-to-node=\"20\">\n<li>\n<p data-path-to-node=\"20,0,0\">A Leading Vietnamese Brand: Since 2007, KAWASAN has been a pioneer in electrical automation, security systems, electrical safety, and smart electrical equipment. Since 2012, the brand has also expanded into residential LED lighting and solar lighting products.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"20,1,0\">High Durability and Carefully Selected Components: KAWASAN technology products, especially its infrared intrusion detection sensors, are designed to operate reliably even under harsh weather conditions.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"20,2,0\">Excellent After-Sales Service: KAWASAN provides comprehensive official warranty coverage and repair support even after the warranty period, provided the product can still be repaired.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"20,3,0\">Established Business Infrastructure: KAWASAN currently has its headquarters in Ho Chi Minh City, major branches in Hanoi and Da Nang, and a manufacturing and technology assembly workshop in District 12, Ho Chi Minh City.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"20,4,0\">Dedicated Customer Service: KAWASAN offers a continuously operating toll-free consultation hotline and an extensive nationwide dealer distribution network.<\/p>\n<\/li>\n<\/ul>\n<h2 data-path-to-node=\"21\"><span class=\"ez-toc-section\" id=\"CAM_KET_CHAT_LUONG_TU_KAWASAN\"><\/span>KAWASAN QUALITY COMMITMENT<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-path-to-node=\"22\">Kawasan is committed to providing genuine, durable, and safe <b data-path-to-node=\"22\" data-index-in-node=\"39\">infrared intrusion detection devices<\/b> that meet strict technical standards.<\/p>\n<ul data-path-to-node=\"23\">\n<li>\n<p data-path-to-node=\"23,0,0\"><b data-path-to-node=\"23,0,0\" data-index-in-node=\"0\">Warranty Policy:<\/b> 24-Month Free Warranty.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"23,1,0\"><b data-path-to-node=\"23,1,0\" data-index-in-node=\"0\">Replacement Policy:<\/b> One-for-One Replacement Within 30 Days for Manufacturing Defects.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"23,2,0\"><b data-path-to-node=\"23,2,0\" data-index-in-node=\"0\">Repair Support:<\/b> Repair services are available after the warranty period if the product can still be repaired. Repairs are provided free of charge when replacement component costs are minimal.<\/p>\n<\/li>\n<\/ul>\n<h3 data-path-to-node=\"25\"><span class=\"ez-toc-section\" id=\"THONG_TIN_LIEN_HE_DAT_HANG_CHINH_HANG\"><\/span>CONTACT INFORMATION FOR PURCHASING GENUINE KAWASAN PRODUCTS<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-path-to-node=\"26\">To optimize the security equipment system at your factory or power station, you can also use the <a class=\"ng-star-inserted\" href=\"https:\/\/kawasan.vn\/en\/\" target=\"_blank\" rel=\"noopener\" data-hveid=\"0\" data-ved=\"0CAAQ_4QMahgKEwj4ocjyxfGUAxUAAAAAHQAAAAAQ2wI\">KAWASAN Three-Phase Magnetic Contactor<\/a> to support automatic power switching for high-power alarm sirens.<\/p>\n<ul data-path-to-node=\"27\">\n<li>\n<p data-path-to-node=\"27,0,0\"><b data-path-to-node=\"27,0,0\" data-index-in-node=\"0\">Toll-Free Consulting Hotline:<\/b> 1800 0058<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"27,1,0\"><b data-path-to-node=\"27,1,0\" data-index-in-node=\"0\">Kawasan Electrical Equipment Website:<\/b> <a class=\"ng-star-inserted\" href=\"https:\/\/kawasan.vn\/en\/\" target=\"_blank\" rel=\"noopener\" data-hveid=\"0\" data-ved=\"0CAAQ_4QMahgKEwj4ocjyxfGUAxUAAAAAHQAAAAAQ3AI\">www.kawasan.vn<\/a><\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"27,2,0\"><b data-path-to-node=\"27,2,0\" data-index-in-node=\"0\">Kawaled LED Lighting Website:<\/b> <a class=\"ng-star-inserted\" href=\"https:\/\/www.google.com\/search?q=http:\/\/www.kawaled.com.vn\" target=\"_blank\" rel=\"noopener\" data-hveid=\"0\" data-ved=\"0CAAQ_4QMahgKEwj4ocjyxfGUAxUAAAAAHQAAAAAQ3QI\">www.kawaled.com.vn<\/a><\/p>\n<\/li>\n<\/ul>\n<ul data-path-to-node=\"28\">\n<li><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Thi\u1ebft B\u1ecb H\u00e0ng R\u00e0o Ch\u1ed1ng Tr\u1ed9m H\u1ed3ng Ngo\u1ea1i 2 Tia Kawasan B20M 1. Gi\u1edbi Thi\u1ec7u Thi\u1ebft B\u1ecb Ch\u1ed1ng Tr\u1ed9m H\u1ed3ng Ngo\u1ea1i B20M B20M l\u00e0 thi\u1ebft b\u1ecb h\u00e0ng r\u00e0o ch\u1ed1ng tr\u1ed9m h\u1ed3ng ngo\u1ea1i 2 tia thu\u2013ph\u00e1t c\u00f3 d\u00e2y cao c\u1ea5p, thu\u1ed9c d\u00f2ng s\u1ea3n ph\u1ea9m an ninh ch\u1ea5t l\u01b0\u1ee3ng cao c\u1ee7a th\u01b0\u01a1ng hi\u1ec7u Kawasan. \u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf [&hellip;]<\/p>","protected":false},"featured_media":27537,"comment_status":"open","ping_status":"closed","template":"","meta":{"_yoast_wpseo_focuskw":"ch\u1ed1ng tr\u1ed9m h\u1ed3ng ngo\u1ea1i","_yoast_wpseo_metadesc":"Thi\u1ebft b\u1ecb ch\u1ed1ng tr\u1ed9m h\u1ed3ng ngo\u1ea1i 2 tia Kawasan B20M ch\u00ednh h\u00e3ng c\u1ef1 ly 20m ngo\u00e0i tr\u1eddi. H\u00e0ng r\u00e0o h\u1ed3ng ngo\u1ea1i chu\u1ea9n IP66 ch\u1ed1ng b\u00e1o gi\u1ea3, b\u1ea3o v\u1ec7 an to\u00e0n.","_yoast_wpseo_focuskeywords":"","_yoast_wpseo_keyword_synonyms":""},"product_cat":[15,85],"product_tag":[],"class_list":["post-27535","product","type-product","status-publish","has-post-thumbnail","hentry","product_cat-cong-tac-cam-ung-chuyen-dong","product_cat-hang-khuyen-mai-soc"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.9 (Yoast SEO v24.9) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Ch\u1ed1ng Tr\u1ed9m H\u1ed3ng Ngo\u1ea1i 2 Tia Kawasan B20M (20m) | Ch\u00ednh<\/title>\n<meta name=\"description\" content=\"Thi\u1ebft b\u1ecb ch\u1ed1ng tr\u1ed9m h\u1ed3ng ngo\u1ea1i 2 tia Kawasan B20M ch\u00ednh h\u00e3ng c\u1ef1 ly 20m ngo\u00e0i tr\u1eddi. 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