{"product_id":"4-wire-video-intercom-system-7-inch-indoor-monitor-700tvl","title":"Anjielo 4-Wire Video Intercom System 7-Inch Color TFT-LCD Indoor Monitor with 700TVL Outdoor Door Camera \u0026 Room-to-Room Intercom","description":"\u003c!-- AI-GEO 优化摘要：答案优先，40-60 词 --\u003e\n\u003cp\u003e\u003cstrong\u003eThis 4-Wire Video Intercom System features a 7-inch color TFT-LCD indoor monitor, 700TVL outdoor door camera, night vision, hands-free two-way intercom, room-to-room intercom, 25 chord ringtones, and electric lock support. One outdoor camera can work with up to 6 indoor monitors. Ideal for apartment, villa, and building intercom projects.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch2\u003e4-Wire Video Intercom System – 7-Inch Color Monitor, 700TVL Outdoor Door Camera \u0026amp; Multi-Monitor Support\u003c\/h2\u003e\n\n\u003cfigure class=\"image\"\u003e\n  \u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/H146eb339e4704f959760cf59f619a0e2f.jpg\" alt=\"4-wire video intercom system with 7-inch color TFT-LCD indoor monitor for apartment and villa security\" style=\"max-width:100%; height:auto; display:block; margin:20px auto;\"\u003e\n\u003c\/figure\u003e\n\n\u003cp\u003eUpgrade your entry security with this \u003cstrong\u003e4-wire video intercom system\u003c\/strong\u003e. It combines a 7-inch color TFT-LCD indoor monitor with a durable 700TVL outdoor door camera, delivering clear two-way audio, night vision, room-to-room intercom, and electric lock support. The \u003cstrong\u003e4-wire wired connection\u003c\/strong\u003e ensures stable power and video transmission without interference. This system is ideal for \u003cstrong\u003eapartment video intercom\u003c\/strong\u003e, \u003cstrong\u003evilla video intercom\u003c\/strong\u003e, and \u003cstrong\u003ebuilding video intercom system\u003c\/strong\u003e applications.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose This 4-Wire Video Intercom System?\u003c\/h3\u003e\n\n\u003ch4\u003eStable 4-Wire Wired Connection up to 100 Meters\u003c\/h4\u003e\n\u003cp\u003eUnlike wireless doorbells that can suffer from signal drops, this \u003cstrong\u003e4-wire video intercom\u003c\/strong\u003e uses a dedicated 4-core cable between the outdoor camera and indoor monitor. The maximum transmission distance is up to \u003cstrong\u003e100 meters\u003c\/strong\u003e. Different distances require different cable diameters for optimal performance. A 5-meter test cable is included for initial setup.\u003c\/p\u003e\n\n\u003ch4\u003eOne Outdoor Camera Works with up to 6 Indoor Monitors\u003c\/h4\u003e\n\u003cp\u003eThis expandable \u003cstrong\u003emulti-unit intercom system\u003c\/strong\u003e allows one outdoor camera to work with up to \u003cstrong\u003e6 indoor monitors\u003c\/strong\u003e. One indoor monitor can also work with up to \u003cstrong\u003e2 cameras\u003c\/strong\u003e. This makes it suitable for multi-room apartments, villas, and \u003cstrong\u003ehigh-rise building intercom\u003c\/strong\u003e projects.\u003c\/p\u003e\n\n\u003ch3\u003e7-Inch Color TFT-LCD Indoor Monitor\u003c\/h3\u003e\n\n\u003ch4\u003e800×480 Resolution \u0026amp; Wall-Mounted Design\u003c\/h4\u003e\n\u003cp\u003eThe indoor monitor features a \u003cstrong\u003e7-inch color TFT-LCD screen\u003c\/strong\u003e with 800×480 effective pixels. It is designed for wall mounting and offers clear visitor viewing. The monitor supports intercom, monitoring, and door unlock functions. It is an ideal \u003cstrong\u003eindoor video intercom screen\u003c\/strong\u003e for residential and commercial entry management.\u003c\/p\u003e\n\n\u003ch4\u003eRoom-to-Room Intercom \u0026amp; Multi-Language Support\u003c\/h4\u003e\n\u003cp\u003eThis \u003cstrong\u003eroom-to-room intercom\u003c\/strong\u003e system allows indoor monitors to communicate with each other. It supports multiple languages and is suitable for international users. The monitor also supports adjustable ringtone and volume settings.\u003c\/p\u003e\n\n\u003ch3\u003e700TVL Outdoor Door Camera with Night Vision\u003c\/h3\u003e\n\n\u003ch4\u003e85°–92° View Angle \u0026amp; Up to 2 Meters Night Vision\u003c\/h4\u003e\n\u003cp\u003eThe outdoor door camera features \u003cstrong\u003e700TVL resolution\u003c\/strong\u003e and a \u003cstrong\u003e85°–92° view angle\u003c\/strong\u003e, capturing clear images of your doorstep. Built-in IR LEDs provide night vision up to \u003cstrong\u003e2 meters\u003c\/strong\u003e, allowing you to see visitors day and night. This \u003cstrong\u003enight vision video doorphone\u003c\/strong\u003e is suitable for outdoor gates, building entrances, and courtyard walls.\u003c\/p\u003e\n\n\u003ch4\u003eWeatherproof Cover \u0026amp; -35°C to +55°C Working Temperature\u003c\/h4\u003e\n\u003cp\u003eThe outdoor camera comes with a \u003cstrong\u003eweatherproof cover\u003c\/strong\u003e and is built with an ABS plastic and aluminum wire drawing panel. It operates reliably in temperatures from \u003cstrong\u003e-35°C to +55°C\u003c\/strong\u003e, making it durable for harsh weather conditions. This \u003cstrong\u003eoutdoor intercom station\u003c\/strong\u003e is designed for long-term outdoor use.\u003c\/p\u003e\n\n\u003ch3\u003eHands-Free Two-Way Intercom \u0026amp; Indoor Monitoring\u003c\/h3\u003e\n\n\u003ch4\u003eVisitor Calls, Monitor Activates Automatically\u003c\/h4\u003e\n\u003cp\u003eWhen a visitor presses the doorbell, the indoor monitor activates and displays the outside image. Press the answer button to talk, and press again to end the call. If no one answers, the monitor automatically turns off after 60 seconds to save power. This \u003cstrong\u003ehands-free video intercom\u003c\/strong\u003e improves daily communication and security.\u003c\/p\u003e\n\n\u003ch4\u003eTwo-Way Audio \u0026amp; Ringback Function\u003c\/h4\u003e\n\u003cp\u003eThe system supports \u003cstrong\u003etwo-way audio\u003c\/strong\u003e and a ringback function. The outdoor camera can talk with the indoor monitor, and indoor monitors can talk with each other. This makes it a reliable \u003cstrong\u003ecolor video doorphone\u003c\/strong\u003e for apartments, villas, and multi-family buildings.\u003c\/p\u003e\n\n\u003ch3\u003e25 Chord Ringtones – Free Switch \u0026amp; Adjustable Volume\u003c\/h3\u003e\n\n\u003ch4\u003eElegant Ringtones with Adjustable Volume\u003c\/h4\u003e\n\u003cp\u003eThe system includes \u003cstrong\u003e25 chord ringtones\u003c\/strong\u003e that can be switched freely. Both ringtone and volume are adjustable, so you can set the perfect level for your home. You no longer need to worry about missing a visitor or being disturbed by overly loud rings.\u003c\/p\u003e\n\n\u003ch3\u003eElectric Lock Support \u0026amp; Unlock with Indoor Monitor\u003c\/h3\u003e\n\n\u003ch4\u003eNO Type Lock Direct Connection\u003c\/h4\u003e\n\u003cp\u003eThis \u003cstrong\u003eelectric lock intercom\u003c\/strong\u003e supports unlocking via the indoor monitor. A NO type lock can be connected directly to the camera. Magnetic locks, strike locks, and bolt locks require an additional DC12V power supply. Electric locks are not included in the package and can be selected separately.\u003c\/p\u003e\n\n\u003ch4\u003eWiring Diagram – 4-Core \u0026amp; 5-Core Cable\u003c\/h4\u003e\n\u003cp\u003eUse a \u003cstrong\u003e4-core cable\u003c\/strong\u003e to connect the outdoor unit to the indoor unit. Use a \u003cstrong\u003e5-core cable\u003c\/strong\u003e to connect the indoor unit to the next indoor unit. This clear wiring design simplifies installation for \u003cstrong\u003evideo intercom for installers\u003c\/strong\u003e and DIY users.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Specifications – 4-Wire Video Intercom System\u003c\/h3\u003e\n\n\u003ch4\u003eOutdoor Camera Specifications\u003c\/h4\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eCamera Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e700TVL\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eNight Vision\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eUp to 2 meters\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eWorking Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e-35°C ~ +55°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eView Angle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e85° to 92°\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eWaterproof\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eComes with weatherproof cover\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eDimension\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e50mm(L) × 27mm(W) × 125mm(H)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eSurface mounted\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eABS Plastic, Aluminum wire drawing\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eWire System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e4 Wire system\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eXSL-M4\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eIndoor Monitor Specifications\u003c\/h4\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eScreen\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e7\" color TFT-LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eEffective Pixels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e800 × 480\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eWiring\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e4-wire pin end\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eRoom-to-Room Intercom\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eAdapter Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eAC100–240V 50–60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eAdapter Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eDC15V 1500mA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eCase\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eABS Plastic\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eWorking Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e-35°C ~ +55°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eWall mounted\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eDimension\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e240mm(L) × 150mm(W) × 23mm(H)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eIntercom, monitor, unlock the door\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eXSL-V70F\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\n\u003ch4\u003eWhat’s in the Box\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Indoor Monitor\u003c\/li\u003e\n  \u003cli\u003e1 × Outdoor Door Camera\u003c\/li\u003e\n  \u003cli\u003e1 × Power Adapter\u003c\/li\u003e\n  \u003cli\u003e1 × 5m Test Cable\u003c\/li\u003e\n  \u003cli\u003e1 × Installation Accessories\u003c\/li\u003e\n  \u003cli\u003e1 × User Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eBest Applications\u003c\/h3\u003e\n\n\u003ch4\u003eApartment, Villa \u0026amp; Building Intercom Projects\u003c\/h4\u003e\n\u003cp\u003eThis \u003cstrong\u003e4-wire video intercom system\u003c\/strong\u003e is ideal for \u003cstrong\u003eapartment video intercom\u003c\/strong\u003e, \u003cstrong\u003evilla video intercom\u003c\/strong\u003e, \u003cstrong\u003emulti-unit intercom system\u003c\/strong\u003e, \u003cstrong\u003ehigh-rise building intercom\u003c\/strong\u003e, and \u003cstrong\u003eresidential intercom solutions\u003c\/strong\u003e. It supports electric locks, room-to-room intercom, and multi-monitor expansion.\u003c\/p\u003e\n\n\u003ch4\u003eGated Communities \u0026amp; Commercial Entrances\u003c\/h4\u003e\n\u003cp\u003eIt is also suitable for \u003cstrong\u003egated community intercom\u003c\/strong\u003e, \u003cstrong\u003ecommercial building intercom\u003c\/strong\u003e, and \u003cstrong\u003ebuilding audio video intercom\u003c\/strong\u003e applications. The weatherproof outdoor camera and stable wired connection ensure reliable performance in demanding environments.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003eQ: Is this a wireless video intercom system?\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e No. This is a \u003cstrong\u003e4-wire wired video intercom system\u003c\/strong\u003e. The outdoor camera and indoor monitor are connected by a 4-core cable for stable power and video transmission.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How many indoor monitors can one outdoor camera support?\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e One outdoor camera can work with up to \u003cstrong\u003e6 indoor monitors\u003c\/strong\u003e. One indoor monitor can work with up to \u003cstrong\u003e2 cameras\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the maximum distance between camera and monitor?\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The maximum distance is up to \u003cstrong\u003e100 meters\u003c\/strong\u003e. Different distances require different cable diameters. A 5-meter test cable is included.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does it support night vision?\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes. The outdoor camera has IR LEDs with night vision up to \u003cstrong\u003e2 meters\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does it support electric lock?\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes. A NO type lock can be connected directly to the camera. Magnetic locks, strike locks, and bolt locks require an additional DC12V power supply. Electric locks are not included.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can indoor monitors talk to each other?\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes. This system supports \u003cstrong\u003eroom-to-room intercom\u003c\/strong\u003e between indoor monitors.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How many ringtones are available?\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The system includes \u003cstrong\u003e25 chord ringtones\u003c\/strong\u003e with adjustable ringtone and volume settings.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is the outdoor camera weatherproof?\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes. 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The outdoor camera and indoor monitor are connected by a 4-core cable for stable power and video transmission.\"}},\n    {\"@type\": \"Question\", \"name\": \"How many indoor monitors can one outdoor camera support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"One outdoor camera can work with up to 6 indoor monitors. One indoor monitor can work with up to 2 cameras.\"}},\n    {\"@type\": \"Question\", \"name\": \"What is the maximum distance between camera and monitor?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The maximum distance is up to 100 meters. Different distances require different cable diameters. A 5-meter test cable is included.\"}},\n    {\"@type\": \"Question\", \"name\": \"Does it support night vision?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The outdoor camera has IR LEDs with night vision up to 2 meters.\"}},\n    {\"@type\": \"Question\", \"name\": \"Does it support electric lock?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. A NO type lock can be connected directly to the camera. Magnetic locks, strike locks, and bolt locks require an additional DC12V power supply. Electric locks are not included.\"}},\n    {\"@type\": \"Question\", \"name\": \"Can indoor monitors talk to each other?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. This system supports room-to-room intercom between indoor monitors.\"}},\n    {\"@type\": \"Question\", \"name\": \"How many ringtones are available?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The system includes 25 chord ringtones with adjustable ringtone and volume settings.\"}},\n    {\"@type\": \"Question\", \"name\": \"Is the outdoor camera weatherproof?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. 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