OEM 4-Wire Analog Video Intercom Kits China Manufacturer
Designed for reliable security, our 4-wire analog video intercom kits deliver 1000 TVL imaging and stable 100m transmission. We provide premium plug-and-play OEM solutions featuring intuitive touchscreens and smart memory.
- 1000 TVL HD Imaging & Wide-Angle Lens
- Clear Night Vision & Auto Backlight Compensation
- Two-Way Intercom & Instant Unlock
- 100m Stable Transmission via 4-Core Cables
- Automatic Visitor Snapshot Capture
- Flexible Scalability: 2 Call Panels & 4 Monitors
Explore Premium VLNX 4-Wire Video Door Phone Series
The VLNX series delivers highly reliable hardwired video door phone solutions tailored for both new residential builds and legacy system upgrades. Our robust IP65 entry panels feature 1000 TVL cameras and 100° wide-angle lenses.
Room stations offer flexible configurations—choose between sleek 7-inch full-touch screens or intuitive 5 touch-button designs. Supporting DIY-friendly 4-core wiring, advanced 2-to-4 villa intercom setups, and automatic visitor snapshots, this series ensures maximum installation flexibility.
Why Choose CSD 4-Wire Video Intercom Kits To Win More Projects?
Since 1998, CSD has been your real source manufacturer. Choose our 4-wire analog video intercom kits for factory-direct prices to easily win more projects.
These 4-wire systems offer plug-and-play setup, 1000 TVL video, and stable 100m transmission. Making PCBA and screens in-house guarantees top quality with CE, RoHS, and ISO certifications.
From standard kits to OEM/ODM services, contact us today for the best wholesale quotes!
Hardwired Video Door Phone Applications
Easily connect up to 2 entry panels and 4 room stations. Great for large villas, giving stable 100m clear video talk and fast door unlock.
Replace old systems easily. Using existing 4-core cables, quickly upgrade to 1000 TVL and get smart memory capture without buying new wires.
Good for builders wanting low cost and DIY-friendly security. Offers easy plug-and-play install and automatic visitor snapshots for new single-family houses.
Made for tough environments. With a strong IP65 waterproof case, clear night vision, and auto backlight compensation, our entry panels show clear faces 24/7 outdoors.
CSD Hardwired Video Door Phone Manufacturer Advantages
As a real factory making video door phones since 1998, we offer full OEM/ODM services. Get factory-direct prices to easily win more local projects.
Unlike others, we manufacture TFT LCDs for our indoor monitor in a zero-dust cleanroom. This ensures zero dead pixels and a very clear video talk experience.
With 7 high-speed SMT lines and SPI + 100% AOI testing, we produce PCBA boards in-house to ensure maximum hardware stability.
Every unit passes a 2-hour full-load aging test. Our CE, RoHS, and ISO certified systems are built for long-term use in any tough environment.
FAQs About 4-Wire Analog Video Intercom Kits
Answer: Yes! Our 4-wire analog video intercom kits are very DIY-friendly. You can use your existing 4-core cables to upgrade directly to our 1000 TVL HD system. This saves you time and money without buying new wires for legacy upgrades.
Answer: The VLNX series supports a stable 100m transmission range for clear video talk and instant unlock. It works perfectly for large villas and single-family houses using standard 4-core cables.
Answer: Our systems offer flexible scalability. Depending on the model, you can connect a maximum of 2 outdoor call panels and 4 indoor monitors using parallel wiring. This is great for multi-room control.
Answer: Yes, select models (like our M76TM) feature automatic visitor snapshots. When a visitor presses the call button, the system captures and stores up to 100 photos in its internal flash memory (auto-cycle). You do not need to buy an extra SD card.
Answer: Absolutely. As a real source factory since 1998, we have our own high-speed SMT lines for PCBA and a fully automated LCD production line. We offer full OEM/ODM services with CE, RoHS, and ISO certifications for global B2B partners.


