{"id":7109,"date":"2026-06-03T01:53:21","date_gmt":"2026-06-03T01:53:21","guid":{"rendered":"https:\/\/farhd.com\/?p=7109"},"modified":"2026-06-03T01:53:23","modified_gmt":"2026-06-03T01:53:23","slug":"%f0%9f%94%a5-hot-sell-2-wire-video-door-phone-system-save-wiring-save-labor-retrofit-ready","status":"publish","type":"post","link":"https:\/\/farhd.com\/fr\/%f0%9f%94%a5-hot-sell-2-wire-video-door-phone-system-save-wiring-save-labor-retrofit-ready\/","title":{"rendered":"\ud83d\udd25 Hot Sell: 2\u2011Wire Video Door Phone System \u2013 Save Wiring, Save Labor, Retrofit Ready"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><strong>Non\u2011polar two\u2011wire transmission \u00b7 Reuse existing cables \u00b7 7\u2011inch IPS HD indoor monitor \u00b7 Metal rainproof outdoor panel \u00b7 Supports multiple indoor monitors, snapshot &amp; motion detection recording<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-9-16 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"\ud83d\udd25Hot Sell 2-Wire Video Door Phone SystemCore Advantages\uff1a\u2705Non-polar two-wire transmission\" width=\"563\" height=\"1000\" src=\"https:\/\/www.youtube.com\/embed\/7grUDmM0eos?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Widely used in private villas, townhouses, and old building renovation projects.&nbsp;<strong>Factory direct supply, flexible OEM available \u2013 welcome to inquire!<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 id=\"introduction-why-is-2-wire-video-intercom-becoming-the-first-choice-for-villas-and-renovation-projects\" class=\"wp-block-heading\">Introduction: Why Is 2\u2011Wire Video Intercom Becoming the First Choice for Villas and Renovation Projects?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">In the video intercom industry, wiring cost and installation difficulty are often the key bottlenecks for project success. New villas may have pre\u2011laid conduits, but renovation projects in old communities, self\u2011built houses, and townhouses often face challenges such as \u201cimpossible to rewire\u201d, \u201cdamage to interior decoration\u201d, and \u201ctoo long construction period\u201d.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">de FARHD&nbsp;<strong>2\u2011Wire Video Intercom System<\/strong>&nbsp;was designed to solve exactly these problems. Using non\u2011polar two\u2011wire transmission technology, it transmits power, video, audio, and unlock signals over a single pair of ordinary two\u2011core wires. No polarity concerns, no separate power cabling \u2013 and most importantly,&nbsp;<strong>it can directly reuse existing old cables<\/strong>. This provides villa owners and renovation contractors with a truly cable\u2011saving, labor\u2011saving, and worry\u2011free professional solution.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 id=\"1-non-polar-two-wire-transmission-dramatically-reduces-wiring-cost-and-labor\" class=\"wp-block-heading\">1. Non\u2011Polar Two\u2011Wire Transmission \u2013 Dramatically Reduces Wiring Cost and Labor<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Traditional analog video intercoms often require 4 or more dedicated wires, with strict specifications for wire gauge and polarity. IP systems, while feature\u2011rich, require CAT5\/6 network cabling and network configuration, which is not friendly for old building retrofits.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">FARHD\u2019s 2\u2011wire system requires only&nbsp;<strong>one pair of \u22650.5mm\u00b2 two\u2011core wires<\/strong>&nbsp;to simultaneously transmit:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Video signal<\/strong>\u00a0(1080P HD)<\/li>\n\n\n\n<li><strong>Audio signal<\/strong>\u00a0(full\u2011duplex two\u2011way)<\/li>\n\n\n\n<li><strong>Control signals<\/strong>\u00a0(call, unlock)<\/li>\n\n\n\n<li><strong>Device power<\/strong>\u00a0(the indoor monitor powers the outdoor station over the same pair)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">And thanks to&nbsp;<strong>non\u2011polar connection<\/strong>, you can connect the wires either way \u2013 no risk of reverse polarity. This dramatically lowers the installation threshold \u2013 any electrician can handle it. Installation time is reduced by more than 50%, and material cost is only a fraction of traditional solutions.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For contractors, this means lower bids and higher margins. For homeowners, it means less wall damage and faster occupancy.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 id=\"2-retrofit-friendly-reuse-existing-old-cables-no-new-conduits-required\" class=\"wp-block-heading\">2. Retrofit Friendly \u2013 Reuse Existing Old Cables, No New Conduits Required<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Old communities, already\u2011decorated villas, heritage buildings \u2013 in these scenarios, pulling new cables is often impossible. One of the greatest strengths of the FARHD 2\u2011wire system is its ability to&nbsp;<strong>directly use existing two\u2011core wires already in the building<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Leftover old intercom lines (most are 2\u2011core or 4\u2011core \u2013 if two cores are intact, they work)<\/li>\n\n\n\n<li>Telephone lines (two cores)<\/li>\n\n\n\n<li>Even some good\u2011quality two\u2011core power cables<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">As long as the cable is continuous and the resistance is not too high, the FARHD 2\u2011wire system will work reliably, with a transmission distance of up to&nbsp;<strong>100 metres<\/strong>&nbsp;\u2013 enough for most villa gardens and building corridors.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Real retrofit example:<\/strong>&nbsp;An old 6\u2011storey, 24\u2011unit apartment building had a broken audio intercom system, but the two\u2011core wires inside the conduits were still intact. The contractor used FARHD\u2019s 2\u2011wire video intercom and completed the entire replacement in just 2 days \u2013 no wall damage, and resident satisfaction soared.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 id=\"3-7-inch-ips-hd-indoor-monitor-metal-rainproof-outdoor-panel\" class=\"wp-block-heading\">3. 7\u2011inch IPS HD Indoor Monitor + Metal Rainproof Outdoor Panel<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Good looks, ease of use, and durability \u2013 FARHD pursues all three in every product.<\/p>\n\n\n\n<h4 id=\"7-inch-ips-hd-indoor-monitor\" class=\"wp-block-heading\">\ud83d\udda5\ufe0f 7\u2011inch IPS HD Indoor Monitor<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>1024\u00d7600 resolution, IPS technology<\/strong>\u00a0\u2013 vivid colours, wide viewing angles. See visitors clearly from anywhere in the room.<\/li>\n\n\n\n<li><strong>Touch buttons or full touchscreen<\/strong>\u00a0(depending on model) \u2013 intuitive operation, easy for children and the elderly.<\/li>\n\n\n\n<li><strong>10 adjustable ringtones<\/strong>\u00a0\u2013 distinguish between main door, side gate, or different callers.<\/li>\n\n\n\n<li><strong>Dual relay outputs<\/strong>\u00a0\u2013 independently control main door and garden\/garage door.<\/li>\n\n\n\n<li><strong>Enregistrement de d\u00e9tection de mouvement<\/strong>\u00a0\u2013 supports human motion detection; capture snapshots or short videos to a memory card.<\/li>\n\n\n\n<li><strong>MicroSD card storage<\/strong>\u00a0\u2013 up to 128GB, store visitor data locally \u2013 no cloud fees.<\/li>\n<\/ul>\n\n\n\n<h4 id=\"metal-rainproof-outdoor-panel\" class=\"wp-block-heading\">\u2614 Metal Rainproof Outdoor Panel<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Aluminum alloy or high\u2011grade ABS<\/strong>\u00a0\u2013 corrosion\u2011resistant, UV\u2011resistant, impact\u2011resistant.<\/li>\n\n\n\n<li><strong>IP65 dustproof and waterproof<\/strong>\u00a0\u2013 metal rain cover included; stands up to heavy rain, dust, and snow.<\/li>\n\n\n\n<li><strong>Wide operating temperature<\/strong>\u00a0\u2013 -40\u00b0C to +70\u00b0C, from freezing winters to scorching summers.<\/li>\n\n\n\n<li><strong>1080P HD camera<\/strong>\u00a0\u2013 115\u00b0 wide angle, infrared night vision, WDR for clear images even in strong backlight.<\/li>\n\n\n\n<li><strong>Optional RFID card, NFC, face recognition<\/strong>\u00a0\u2013 to meet different security levels.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 id=\"4-support-multiple-indoor-monitors-snapshot-motion-detection-recording\" class=\"wp-block-heading\">4. Support Multiple Indoor Monitors, Snapshot &amp; Motion Detection Recording<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">In villas or apartment projects, multiple indoor monitors are often needed (living room, bedroom, study, staff room). The FARHD 2\u2011wire system supports up to&nbsp;<strong>2 outdoor stations + 4 indoor monitors<\/strong>&nbsp;in series or expanded via 2\u2011wire switches.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Room\u2011to\u2011room call<\/strong>\u00a0\u2013 indoor monitors in different rooms can call each other, convenient for family communication.<\/li>\n\n\n\n<li><strong>ID: Alertes de d\u00e9tection de mouvement<\/strong>\u00a0\u2013 when someone lingers or moves suspiciously near the door, the indoor monitor sounds an alert and can push a notification via the app.<\/li>\n\n\n\n<li><strong>Snapshot &amp; video recording<\/strong>\u00a0\u2013 automatically capture visitor snapshots or short videos to a microSD card. Even if you miss a call, you can review it later.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">For property management or security centres, an optional management station can centralise control of multiple units.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 id=\"5-wide-applications-villas-townhouses-old-building-renovations\" class=\"wp-block-heading\">5. Wide Applications: Villas, Townhouses, Old Building Renovations<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Application Scenario<\/th><th class=\"has-text-align-left\" data-align=\"left\">Why Choose FARHD 2\u2011Wire System<\/th><\/tr><\/thead><tbody><tr><td><strong>Private villa<\/strong><\/td><td>Reuse existing wiring \u2013 no need to damage garden or interior decoration; support 2 door stations (front gate + back garden) and multiple indoor monitors (living room + master bedroom).<\/td><\/tr><tr><td><strong>Townhouse \/ duplex<\/strong><\/td><td>Each unit has its own indoor monitor; common door station managed centrally. 2\u2011wire system can be daisy\u2011chained, saving common area cabling.<\/td><\/tr><tr><td><strong>Old community retrofit<\/strong><\/td><td>Use existing two\u2011core wires \u2013 short construction period, low cost, zero disruption to residents; increases property value.<\/td><\/tr><tr><td><strong>Self\u2011built \/ rural house<\/strong><\/td><td>No networking expertise needed; any electrician can install; long\u2011distance transmission suitable for large courtyards.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 id=\"6-factory-direct-supply-flexible-oem\" class=\"wp-block-heading\">6. Factory Direct Supply, Flexible OEM<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">FARHD has over 25 years of R&amp;D and manufacturing experience in video intercoms. We are not just a brand \u2013 we are a&nbsp;<strong>direct factory<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>No middleman markup<\/strong>\u00a0\u2013 competitive pricing, reasonable margins.<\/li>\n\n\n\n<li><strong>OEM \/ ODM support<\/strong>\u00a0\u2013 custom logo, housing colour, software language, packaging \u2013 build your own brand.<\/li>\n\n\n\n<li><strong>No MOQ for trial orders<\/strong>\u00a0\u2013 start with one sample unit; low risk to test.<\/li>\n\n\n\n<li><strong>Fast delivery<\/strong>\u00a0\u2013 standard products in stock; custom orders shipped on time per contract.<\/li>\n\n\n\n<li><strong>Global technical support<\/strong>\u00a0\u2013 English\/Chinese manuals, installation videos, remote assistance.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 id=\"7-get-product-information-quotation-today\" class=\"wp-block-heading\">7. Get Product Information &amp; Quotation Today<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The FARHD 2\u2011Wire Video Intercom System is selling worldwide. If you are planning a villa project, an old community renovation, or simply need a cost\u2011effective and reliable intercom solution, contact us.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udce9&nbsp;<strong>Email:<\/strong>&nbsp;info@farhd.com<br>\ud83c\udf10&nbsp;<strong>Website:<\/strong>&nbsp;<a href=\"https:\/\/farhd.com\/fr\/\" target=\"_blank\" rel=\"noreferrer noopener\">www.farhd.com<\/a><br>\ud83d\udcac&nbsp;<strong>Reply \u201c2WIRE\u201d<\/strong>&nbsp;\u2013 we will send you detailed specifications and a quotation.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>#SecuritySystem #ApartmentIntercom #HomeProtection<\/strong><\/p>","protected":false},"excerpt":{"rendered":"<p>Non\u2011polar two\u2011wire transmission \u00b7 Reuse existing cables \u00b7 7\u2011inch IPS HD indoor monitor \u00b7 Metal rainproof outdoor panel \u00b7 Supports multiple indoor monitors, snapshot &amp; motion detection recording Widely used in private villas, townhouses, and old building renovation projects.&nbsp;Factory direct supply, flexible OEM available \u2013 welcome to inquire! Introduction: Why Is 2\u2011Wire Video Intercom Becoming&#8230;<\/p>","protected":false},"author":2,"featured_media":5618,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_gspb_post_css":"","_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-7109","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"acf":[],"taxonomy_info":{"category":[{"value":1,"label":"Uncategorized"}]},"featured_image_src_large":["https:\/\/farhd.com\/wp-content\/uploads\/2025\/12\/1-19.jpg",1000,1000,false],"author_info":{"display_name":"Kevin","author_link":"https:\/\/farhd.com\/fr\/author\/kevin\/"},"comment_info":0,"category_info":[{"term_id":1,"name":"Uncategorized","slug":"uncategorized","term_group":0,"term_taxonomy_id":1,"taxonomy":"category","description":"","parent":0,"count":355,"filter":"raw","term_order":"0","cat_ID":1,"category_count":355,"category_description":"","cat_name":"Uncategorized","category_nicename":"uncategorized","category_parent":0}],"tag_info":false,"_links":{"self":[{"href":"https:\/\/farhd.com\/fr\/wp-json\/wp\/v2\/posts\/7109","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/farhd.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/farhd.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/farhd.com\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/farhd.com\/fr\/wp-json\/wp\/v2\/comments?post=7109"}],"version-history":[{"count":1,"href":"https:\/\/farhd.com\/fr\/wp-json\/wp\/v2\/posts\/7109\/revisions"}],"predecessor-version":[{"id":7110,"href":"https:\/\/farhd.com\/fr\/wp-json\/wp\/v2\/posts\/7109\/revisions\/7110"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/farhd.com\/fr\/wp-json\/wp\/v2\/media\/5618"}],"wp:attachment":[{"href":"https:\/\/farhd.com\/fr\/wp-json\/wp\/v2\/media?parent=7109"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/farhd.com\/fr\/wp-json\/wp\/v2\/categories?post=7109"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/farhd.com\/fr\/wp-json\/wp\/v2\/tags?post=7109"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}