Video Intercom, TFT LCD & Camera Module China Manufacturer
CSD Services

Expert OEM/ODM manufacturer for Video Intercoms, TFT LCDs, and Camera Modules since 1998.

Delivering factory-direct pricing with professional-grade reliability.

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
A-2 4-wire Analog Video Intercom Kits
Products Categories
Get A Free Quote
Contact Form

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

Large Villa Intercom Setups

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.

Old System Upgrades

Replace old systems easily. Using existing 4-core cables, quickly upgrade to 1000 TVL and get smart memory capture without buying new wires.

New House Projects

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.

Tough Outdoor Environments

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

Vertical Integration Excellence Icon
Source Factory Since 1998

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.

Full-Cycle OEM ODM Service Icon
In-house LCD Production Lines

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.

Innovation-Driven
Strong SMT Production Lines

With 7 high-speed SMT lines and SPI + 100% AOI testing, we produce PCBA boards in-house to ensure maximum hardware stability.

Win-Win Partnerships
Strict 2-Hour Aging Test

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

Q1: Can I use my old wires to upgrade to this system?

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.

Q2: What is the max distance between the entry panel and room station?

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.

Q3: How many monitors and outdoor panels can I connect together?

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.

Q4: Does the indoor screen save visitor photos?

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.

Q5: Do you provide OEM/ODM services for bulk orders?

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.

Scroll to Top

Get A Free Quote Now !

If you have any questions, please do not hesitate to contact us.

Contact Form