{"id":6383,"date":"2023-11-01T05:35:48","date_gmt":"2023-11-01T05:35:48","guid":{"rendered":"https:\/\/kawasan.123websitedev.com\/product\/cua-tu-bao-khach-khong-day-m428b\/"},"modified":"2026-09-29T10:36:56","modified_gmt":"2026-09-29T03:36:56","slug":"cua-tu-bao-khach-khong-day-m428b","status":"publish","type":"product","link":"https:\/\/kawasan.vn\/en\/product\/cua-tu-bao-khach-khong-day-m428b\/","title":{"rendered":"M428B WIRELESS MAGNETIC DOOR VISITOR CHIME"},"content":{"rendered":"<h2><span class=\"ez-toc-section\" id=\"CUA_TU_BAO_KHACH_KHONG_DAY_LA_GI\"><\/span>WHAT IS A WIRELESS MAGNETIC DOOR VISITOR CHIME?<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\/cua-tu-bao-khach-khong-day-m428b\/#CUA_TU_BAO_KHACH_KHONG_DAY_LA_GI\" title=\"WHAT IS A WIRELESS MAGNETIC DOOR VISITOR CHIME?\">WHAT IS A WIRELESS MAGNETIC DOOR VISITOR CHIME?<\/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\/cua-tu-bao-khach-khong-day-m428b\/#DAC_DIEM_CUA_THIET_BI_BAO_KHACH_KHONG_DAY_MS428B\" title=\"FEATURES OF THE M428B WIRELESS VISITOR CHIME\">FEATURES OF THE M428B WIRELESS VISITOR CHIME<\/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\/cua-tu-bao-khach-khong-day-m428b\/#CAC_UNG_DUNG_THUC_TE_CUA_TU_BAO_KHACH_KHONG_DAY\" title=\"PRACTICAL APPLICATIONS OF THE WIRELESS MAGNETIC DOOR VISITOR CHIME\">PRACTICAL APPLICATIONS OF THE WIRELESS MAGNETIC DOOR VISITOR CHIME<\/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\/cua-tu-bao-khach-khong-day-m428b\/#_VI_SAO_NEN_DUNG_CAM_BIEN_CUA_TU_KHONG_DAY_BAO_KHACH_M428B\" title=\"\u00a0WHY SHOULD YOU USE THE M428B WIRELESS MAGNETIC DOOR VISITOR CHIME?\">\u00a0WHY SHOULD YOU USE THE M428B WIRELESS MAGNETIC DOOR VISITOR CHIME?<\/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\/cua-tu-bao-khach-khong-day-m428b\/#SU_KHAC_BIET_GIUA_THIET_BI_CANH_BAO_MO_CUA_KAWASAN_SO_VOI_NHUNG_SAN_PHAM_CUNG_LOAI_TREN_THI_TRUONG\" title=\"DIFFERENCES BETWEEN KAWASAN DOOR-OPENING ALERT DEVICES AND SIMILAR PRODUCTS ON THE MARKET\">DIFFERENCES BETWEEN KAWASAN DOOR-OPENING ALERT DEVICES AND SIMILAR PRODUCTS ON THE MARKET<\/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\/cua-tu-bao-khach-khong-day-m428b\/#DUNG_THIET_BI_BAO_KHACH_MANG_DEN_LOI_ICH_GI\" title=\"WHAT ARE THE BENEFITS OF USING A VISITOR CHIME?\">WHAT ARE THE BENEFITS OF USING A VISITOR CHIME?<\/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\/cua-tu-bao-khach-khong-day-m428b\/#BI_QUYET_LUA_CHON_BAO_KHACH_KHONG_DAY_PHU_HOP_NHAT\" title=\"TIPS FOR CHOOSING THE MOST SUITABLE WIRELESS VISITOR CHIME\">TIPS FOR CHOOSING THE MOST SUITABLE WIRELESS VISITOR CHIME<\/a><\/li><\/ul><\/nav><\/div>\n\n<p>A wireless magnetic door visitor chime is a device that provides a visitor alert through the connection between a chime unit and a magnetic door sensor. <a href=\"https:\/\/kawasan.vn\/en\/product\/cua-tu-khong-day-m4\/\" target=\"_blank\" rel=\"noopener\">M4 Magnetic Door Sensor:<\/a> is installed on doors such as glass doors, aluminum doors, wooden doors, etc.\n\nWhen someone opens the door, the magnetic door sensor transmits a signal to the chime receiver, notifying users that a visitor has arrived. The sensor can also be installed on windows and used as an intrusion alarm.<\/p>\n<div id=\"attachment_5835\" class=\"wp-caption aligncenter\">\n<figure id=\"attachment_16555\" aria-describedby=\"caption-attachment-16555\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-16555 size-full\" title=\"KAWASAN M428B Magnetic Door Visitor Chime\" src=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2023\/11\/cua-tu-cam-bien-bao-khach-M428B-5.jpg\" alt=\"C\u1eeda t\u1eeb c\u1ea3m \u1ee9ng b\u00e1o kh\u00e1ch M428B Kawasan\" width=\"600\" height=\"600\" srcset=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2023\/11\/cua-tu-cam-bien-bao-khach-M428B-5.jpg 600w, https:\/\/kawasan.vn\/wp-content\/uploads\/2023\/11\/cua-tu-cam-bien-bao-khach-M428B-5-400x400.jpg 400w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-16555\" class=\"wp-caption-text\">KAWASAN M428B Magnetic Door Visitor Chime<\/figcaption><\/figure>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"DAC_DIEM_CUA_THIET_BI_BAO_KHACH_KHONG_DAY_MS428B\"><\/span>FEATURES OF THE M428B WIRELESS VISITOR CHIME<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li aria-level=\"1\">The wireless visitor chime uses magnetic door sensing technology and connects wirelessly to the chime receiver. The magnetic door sensor and\u00a0<a href=\"http:\/\/thegioidienthongminh.com\/danh-muc\/chuong-cua-bao-khach\/\" target=\"_blank\" rel=\"noopener noreferrer\">visitor chime<\/a>\u00a0communicate via radio frequency (RF) signals with high sensitivity and can transmit through obstacles such as thin walls, wood, and glass.<\/li>\n<\/ul>\n<div id=\"attachment_5828\" class=\"wp-caption aligncenter\">\n<figure id=\"attachment_16549\" aria-describedby=\"caption-attachment-16549\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-16549\" title=\"Good signal transmission through obstacles such as wood and glass.\" src=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2026\/10\/1.png\" alt=\"\u0110\u01b0\u1eddng truy\u1ec1n t\u00edn hi\u1ec7u qua v\u1eadt c\u1ea3n nh\u01b0: g\u1ed7, k\u00ednh\u2026 t\u1ed1t\" width=\"600\" height=\"467\" srcset=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2026\/10\/1.png 900w, https:\/\/kawasan.vn\/wp-content\/uploads\/2026\/10\/1-768x768.png 768w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-16549\" class=\"wp-caption-text\">Good signal transmission through obstacles such as wood and glass.<\/figcaption><\/figure>\n<\/div>\n<ul>\n<li aria-level=\"1\">The magnetic sensor uses a CR2023 lithium battery (included) with a battery life of more than 6 months. The chime receiver plugs directly into a 220V power outlet, making it easy to move to different locations. This helps keep the chime operating continuously without worrying about battery depletion, while the sensor battery can also be easily replaced.<\/li>\n<li aria-level=\"1\">Compact design with an elegant and attractive appearance. Made from high-quality, flame-resistant materials with a service life of more than 5 years.<\/li>\n<li aria-level=\"1\">\u00a0The chime receiver provides up to 32 ringtones and 3 adjustable volume levels. The sound level ranges from 60\u201380 dB, allowing users to hear the chime from different areas. It is also equipped with a small blue LED light, which can conveniently be used as a night light.<\/li>\n<\/ul>\n<div id=\"attachment_5836\" class=\"wp-caption aligncenter\">\n<figure id=\"attachment_16556\" aria-describedby=\"caption-attachment-16556\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-16556\" title=\"The magnetic door sensor transmits a signal to the chime receiver to notify users when a visitor arrives.\" src=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2026\/10\/2-2.png\" alt=\"C\u1ea3m bi\u1ebfn c\u1eeda t\u1eeb truy\u1ec1n t\u00edn hi\u1ec7u \u0111\u1ebfn \u0111\u1ea7u chu\u00f4ng b\u00e1o hi\u1ec7u kh\u00e1ch \u0111\u1ebfn\" width=\"600\" height=\"286\" \/><figcaption id=\"caption-attachment-16556\" class=\"wp-caption-text\">The magnetic door sensor transmits a signal to the chime receiver to notify users when a visitor arrives.<\/figcaption><\/figure>\n<\/div>\n<ul>\n<li aria-level=\"1\">Multiple chime receivers or multiple magnetic door sensors can be integrated into the same system. For homes with several doors or multiple floors, additional accessories can be purchased separately and paired with the system.<\/li>\n<\/ul>\n<div id=\"attachment_5851\" class=\"wp-caption aligncenter\">\n<figure id=\"attachment_16560\" aria-describedby=\"caption-attachment-16560\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-16560\" title=\"High integration capability makes the magnetic door visitor chime more convenient for users.\" src=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2026\/10\/3.png\" alt=\"Kh\u1ea3 n\u0103ng t\u00edch h\u1ee3p c\u1eeda t\u1eeb b\u00e1o kh\u00e1ch cao ti\u1ec7n l\u1ee3i cho ng\u01b0\u1eddi d\u00f9ng\" width=\"600\" height=\"640\" \/><figcaption id=\"caption-attachment-16560\" class=\"wp-caption-text\">High integration capability makes the magnetic door visitor chime more convenient for users.<\/figcaption><\/figure>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"CAC_UNG_DUNG_THUC_TE_CUA_TU_BAO_KHACH_KHONG_DAY\"><\/span>PRACTICAL APPLICATIONS OF THE WIRELESS MAGNETIC DOOR VISITOR CHIME<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li aria-level=\"1\">Suitable for stores and showrooms equipped with air-conditioning systems and glass doors designed to reduce noise and dust.<\/li>\n<\/ul>\n<div id=\"attachment_5837\" class=\"wp-caption aligncenter\">\n<figure id=\"attachment_16557\" aria-describedby=\"caption-attachment-16557\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-16557\" title=\"Suitable for use in showrooms and stores.\" src=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2023\/11\/cua-tu-cam-bien-bao-khach-M428B-6.jpg\" alt=\"\u1ee8ng d\u1ee5ng trong c\u00e1c showroom, c\u1eeda h\u00e0ng\" width=\"600\" height=\"375\" \/><figcaption id=\"caption-attachment-16557\" class=\"wp-caption-text\">Suitable for use in showrooms and stores.<\/figcaption><\/figure>\n<\/div>\n<ul>\n<li aria-level=\"1\">Suitable for glass doors in hotels and restaurants to notify staff when visitors enter.<\/li>\n<\/ul>\n<div id=\"attachment_5831\" class=\"wp-caption aligncenter\">\n<figure id=\"attachment_16551\" aria-describedby=\"caption-attachment-16551\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-16551\" title=\"Widely used on glass doors in restaurants and hotels.\" src=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2023\/11\/cua-tu-cam-bien-bao-khach-M428B-3.jpg\" alt=\"\u1ee8ng d\u1ee5ng nhi\u1ec1u trong c\u00e1c nh\u00e0 h\u00e0ng kh\u00e1ch s\u1ea1n b\u1eb1ng k\u00ednh\" width=\"600\" height=\"428\" \/><figcaption id=\"caption-attachment-16551\" class=\"wp-caption-text\">Widely used on glass doors in restaurants and hotels.<\/figcaption><\/figure>\n<\/div>\n<ul>\n<li aria-level=\"1\">Can be installed on display cabinets containing high-value products to provide an alert when the cabinet door is opened.<\/li>\n<\/ul>\n<div id=\"attachment_5839\" class=\"wp-caption aligncenter\">\n<figure id=\"attachment_16558\" aria-describedby=\"caption-attachment-16558\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-16558\" title=\"The M428B door-opening alert can be used for high-value display areas.\" src=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2023\/11\/cua-tu-cam-bien-bao-khach-M428B-7.jpg\" alt=\"C\u1ea3nh b\u00e1o m\u1edf c\u1eeda M428B d\u00f9ng cho c\u00e1c khu tr\u01b0ng b\u00e0i gi\u00e1 tr\u1ecb cao\" width=\"600\" height=\"405\" \/><figcaption id=\"caption-attachment-16558\" class=\"wp-caption-text\">The M428B door-opening alert can be used for high-value display areas.<\/figcaption><\/figure>\n<\/div>\n<ul>\n<li aria-level=\"1\">Can be used to alert users when restricted or special-purpose rooms are opened by unauthorized persons.<\/li>\n<\/ul>\n<div id=\"attachment_5827\" class=\"wp-caption aligncenter\">\n<figure id=\"attachment_16559\" aria-describedby=\"caption-attachment-16559\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-16559\" title=\"Door-opening alert for restricted rooms with controlled access.\" src=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2023\/11\/cua-tu-cam-ung-bao-khach-M428B.jpg\" alt=\"C\u1ea3nh b\u00e1o m\u1edf c\u1eeda cho c\u00e1c ph\u00f2ng \u0111\u1eb7c bi\u1ec7t h\u1ea1n ch\u1ebf ng\u01b0\u1eddi ra v\u00e0o\" width=\"600\" height=\"356\" \/><figcaption id=\"caption-attachment-16559\" class=\"wp-caption-text\">Door-opening alert for restricted rooms with controlled access.<\/figcaption><\/figure>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"_VI_SAO_NEN_DUNG_CAM_BIEN_CUA_TU_KHONG_DAY_BAO_KHACH_M428B\"><\/span>\u00a0WHY SHOULD YOU USE THE M428B WIRELESS MAGNETIC DOOR VISITOR CHIME?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li aria-level=\"1\">Helps avoid false alarms during use. The M4 magnetic door sensor operates accurately with high sensitivity.<\/li>\n<li aria-level=\"1\">Long signal transmission range of 20\u201350 m when walls or partitions are present. The signal transmission time to activate the chime is only about 0.15\u20130.2 seconds, helping ensure that people inside the property can hear the chime and promptly welcome visitors.<\/li>\n<li aria-level=\"1\">The magnetic door sensor can be flexibly installed on different types of doors and windows, including aluminum, glass, and wooden doors.<\/li>\n<li aria-level=\"1\">Compact design and easy installation. Simply plug the chime receiver into a 220V power outlet and attach the magnetic door sensor to the door using double-sided adhesive tape.<\/li>\n<li aria-level=\"1\">Good after-sales service: Users can contact the technical support department whenever assistance is required. During the warranty period, covered faults are repaired promptly and free of charge.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"SU_KHAC_BIET_GIUA_THIET_BI_CANH_BAO_MO_CUA_KAWASAN_SO_VOI_NHUNG_SAN_PHAM_CUNG_LOAI_TREN_THI_TRUONG\"><\/span>DIFFERENCES BETWEEN KAWASAN DOOR-OPENING ALERT DEVICES AND SIMILAR PRODUCTS ON THE MARKET<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li aria-level=\"1\">Kawasan is an established brand in the\u00a0<a href=\"https:\/\/kawasan.com.vn\/san-pham.html\/chuong-cua-chuong-bao-khach.html\/chuong-bao-khach-khong-day.html\" target=\"_blank\" rel=\"noopener noreferrer\">wireless visitor chimes<\/a>. The products come with a 2-year warranty, and the product service life is guaranteed to be more than 5 years. Customers are also supported by a professional sales consulting team and timely technical assistance.<\/li>\n<li aria-level=\"1\">Highly sensitive RF technology provides reliable signal transmission through obstacles from the magnetic door sensor to the chime receiver. The chime can be heard throughout the house, with a signal transmission range of approximately 40\u201380 m.<\/li>\n<li aria-level=\"1\">High expansion capability provides greater convenience for large and multi-storey houses. Up to 4 magnetic door sensors can be paired with one chime receiver, or multiple chime receivers can be paired with one magnetic door sensor. In addition, the system can be integrated with accessories such as the D28 motion sensor, D66 push button, and B67 chime transmitter.<\/li>\n<li aria-level=\"1\">Product specifications are clearly printed on the packaging for easy reference and operation. Long product service life helps reduce replacement costs over time.<\/li>\n<\/ul>\n<div id=\"attachment_5832\" class=\"wp-caption aligncenter\">\n<figure id=\"attachment_16552\" aria-describedby=\"caption-attachment-16552\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-16552\" title=\"The M428B wireless visitor chime provides many practical benefits.\" src=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2026\/10\/4.png\" alt=\"Chu\u00f4ng b\u00e1o kh\u00e1ch kh\u00f4ng d\u00e2y M428B mang \u0111\u1ebfn nhi\u1ec1u l\u1ee3i \u00edch\" width=\"600\" height=\"601\" \/><figcaption id=\"caption-attachment-16552\" class=\"wp-caption-text\">The M428B wireless visitor chime provides many practical benefits.<\/figcaption><\/figure>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"DUNG_THIET_BI_BAO_KHACH_MANG_DEN_LOI_ICH_GI\"><\/span>WHAT ARE THE BENEFITS OF USING A VISITOR CHIME?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li aria-level=\"1\">Flexibility: The chime receiver can be easily moved and installed in different areas of the house. It can be plugged into power outlets in the living room, stairway, hallway, or on different floors. The push button can be installed on a door, attached to a wall outside the gate, or placed near the entrance.<\/li>\n<li aria-level=\"1\">Maintains aesthetics: The magnetic door sensor only needs to be attached to the door and does not require complicated wiring to the chime receiver. This helps reduce wiring and installation costs while maintaining the appearance of the property.<\/li>\n<li aria-level=\"1\">The wireless magnetic door sensor is compact and easy to install; simply attach it to the door and it is ready for use. It provides high sensitivity and can easily be moved to different installation locations. Suitable for wooden, aluminum, and glass doors.<\/li>\n<li aria-level=\"1\">Convenient battery replacement: The magnetic door sensor battery only needs to be replaced after approximately 6 months of use. The battery provides a long service life and is easy to replace. The chime receiver can be plugged directly into a 220V power outlet.<\/li>\n<li aria-level=\"1\">\u00a0Effective anti-theft warning: The magnetic sensor can be installed on windows or doors. If an intruder opens the door or window, the sensor immediately transmits a signal to the chime receiver. The alarm sound can startle the intruder and help provide greater peace of mind for the homeowner.<\/li>\n<li aria-level=\"1\">High expansion capability: In large homes with multiple floors and doors, using only one chime receiver may make the sound difficult to hear everywhere. The system supports pairing up to 4 magnetic door sensors with one chime receiver, or multiple chime receivers with one magnetic door sensor.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"BI_QUYET_LUA_CHON_BAO_KHACH_KHONG_DAY_PHU_HOP_NHAT\"><\/span>TIPS FOR CHOOSING THE MOST SUITABLE WIRELESS VISITOR CHIME<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Today, there are many different types of door-opening visitor alert devices from various brands. To choose a visitor chime that best suits your needs while ensuring product quality, customers should consider the following points:<\/p>\n<ul>\n<li aria-level=\"1\">Choose a genuine and reputable brand: There are many well-known brands on the market, such as KAWASAN, Xiaomi, and others, that are widely selected and trusted by users.<\/li>\n<li aria-level=\"1\">Check product labels and warranty seals: When purchasing any product, especially electrical devices, customers should carefully check the labels, markings, and warranty seals on the packaging to avoid counterfeit or poor-quality products. Product information should also be reviewed carefully for comparison before purchase.<\/li>\n<li aria-level=\"1\">Carefully consider durability, functions, and user safety. Examine the product structure, functions, and operating method to distinguish high-quality products from imitations. Customers can also review technical information such as signal transmission range, battery type, battery life, and expansion capability.\n\nCounterfeit or low-quality visitor chimes may have several internal components omitted from the chime receiver and may use lower-quality housing materials. The magnetic door sensor or push button may have poor signal transmission sensitivity and a service life of less than 1 year. Based on the information above, customers can select a visitor chime that best suits their needs.<\/li>\n<\/ul>\n<div id=\"attachment_5830\" class=\"wp-caption aligncenter\">\n<figure id=\"attachment_16550\" aria-describedby=\"caption-attachment-16550\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-16550 size-full\" title=\"Outstanding features make the device suitable for use in many different areas.\" src=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2026\/10\/5.png\" alt=\"T\u00ednh n\u0103ng \u01b0u Vi\u1ec7t \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng s\u1eed d\u1ee5ng cho nhi\u1ec1u khu v\u1ef1c\" width=\"600\" height=\"600\" srcset=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2026\/10\/5.png 900w, https:\/\/kawasan.vn\/wp-content\/uploads\/2026\/10\/5-768x768.png 768w, https:\/\/kawasan.vn\/wp-content\/uploads\/2026\/10\/5-640x640.png 640w, https:\/\/kawasan.vn\/wp-content\/uploads\/2026\/10\/5-400x400.png 400w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-16550\" class=\"wp-caption-text\">Outstanding features make the device suitable for use in many different areas.<\/figcaption><\/figure>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Nh\u00e0 s\u1ea3n xu\u1ea5t: KawasanM\u00e3 s\u1ea3n ph\u1ea9m: M428BT\u00ecnh tr\u1ea1ng:C\u00f2n h\u00e0ng<\/p>","protected":false},"featured_media":16555,"comment_status":"open","ping_status":"closed","template":"","meta":{"_yoast_wpseo_focuskw":"C\u1eeda T\u1eeb B\u00e1o Kh\u00e1ch","_yoast_wpseo_metadesc":"C\u1eeda t\u1eeb b\u00e1o kh\u00e1ch kh\u00f4ng d\u00e2y g\u1ed3m: chu\u00f4ng b\u00e1o B8A v\u00e0 c\u1ea3m bi\u1ebfn c\u1eeda t\u1eeb M4. 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