4CH AHD Vehicle DVR with 512GB Recording and Multi-Camera Split View

For driving events such as reversing or side-camera activation, each channel can be triggered independently. Once the trigger signal is received, the corresponding camera automatically takes priority on the display. When the trigger is cancelled, the system returns to the previous display after approximately 2 seconds. This makes the unit suitable not only for basic truck backup camera systems, but also for complete commercial vehicle video recording and surveillance applications.

Advantages

1. DVR Recording + Multi-Camera Display in One Unit

Instead of using a separate camera switcher and recorder, this unit combines the two functions in one compact box.

Camera Input → Video Recording → Split Display → Trigger Switching

This can simplify system integration for vehicle camera installers and fleet equipment suppliers.

2. 4-Channel HD Vehicle Recording

The system supports up to four camera inputs with: 1080P/720P/D1. This provides flexibility when integrating different vehicle cameras or upgrading an existing analog camera system.

3. Up to 512GB TF Card Storage

The built-in TF card recording design supports up to 512GB storage, allowing the unit to store recorded driving video without requiring an external hard drive.

4. Automatic Camera Switching

Each camera channel can be triggered independently.

For example:

Reverse Trigger → Rear Camera Full Screen

Left Turn Trigger → Left Camera Full Screen

Right Turn Trigger → Right Camera Full Screen

The actual trigger configuration can be customized according to the vehicle installation.

5. Adjustable Image for Each Camera

Brightness, contrast, saturation, hue and sharpness can be adjusted independently for each channel.

This is useful when cameras are installed in different positions or exposed to different lighting conditions.

6. Flexible Video Output

The unit supports: CVBS / AHD1080P Output Optional. The AHD1080P output also supports backward compatibility with 720P and 1080P at 25/30fps, according to the connected system configuration.

Product Parameters

Product Type: 4CH AHD Vehicle DVR / Video Splitter

Camera Input: 4CH 1080P / 720P / D1

Maximum Camera Channels: 4CH

Storage: TF Card

Maximum TF Card Capacity: 512GB

Video Output: CVBS / AHD1080P Optional

AHD Output Compatibility: 720P / 1080P, 25/30fps

Video Output Connector: 4PIN Aviation Connector

Audio: Audio Output Supported

Display Mode: Multi-Channel Split Display / Full Screen

Camera Trigger: 4CH Independent Trigger

Camera Selection: Trigger Wire / Manual Selection

Trigger Display: Automatic Full-Screen Display

Trigger Return Delay: Approx. 2 Seconds

Image Adjustment: Brightness / Contrast / Saturation / Hue / Sharpness

Image Orientation: Normal / Mirror, Independently Adjustable

Video Format: PAL / NTSC

Power Output: 12V for Cameras and Monitor

Working Voltage: DC 9V–32V

Protection: High Voltage / Low Voltage / Overload Protection

Dimension: 155 × 87 × 32mm

Application Scenarios

• Truck & Heavy-Duty Vehicle DVR

Record front, rear and side camera footage for trucks and heavy-duty vehicles.

• Fleet Camera Recording

Suitable for fleet operators requiring local video recording from multiple vehicle cameras.

• Bus Video Surveillance

Connect multiple cameras for front, rear and side monitoring on buses and passenger vehicles.

• Van & Commercial Vehicle Camera System

Suitable for delivery vans, service vehicles and commercial vehicles requiring both recording and live display.

• RV & Motorhome Camera System

Can be integrated with multi-camera rear and side monitoring systems.

• Vehicle Safety & Evidence Recording

Recorded video can provide visual evidence of driving events, vehicle surroundings and operational conditions.

Image Configuration

Each camera channel can be configured independently.

Adjustable image parameters include:

• Brightness
• Contrast
• Saturation
• Hue
• Sharpness
• Normal / Mirror Image

This gives installers greater flexibility when combining front-view, rear-view and side-view cameras with different mounting orientations.

FAQ

Q1: Is this only a video splitter?

No. It combines 4-channel video recording and multi-camera video splitting/switching in one unit.

Q2: How many cameras can it record?

It supports up to 4 camera channels.

Q3: What camera resolutions are supported?

It supports 1080P, 720P and D1 camera inputs.

Q4: What is the maximum TF card capacity?

The product supports a TF card with a maximum capacity of 512GB.

Q5: Can I use both AHD and CVBS cameras?

The specifications support AHD and CVBS video configurations. The exact camera/output combination should be confirmed according to the project configuration.

Q6: Can every camera be triggered independently?

Yes. The four camera channels support independent trigger control.

Q7: Can the image of each camera be mirrored separately?

Yes. Normal/mirror image settings can be configured independently for each channel.

Q8: Can I adjust the image quality of each camera?

Yes. Brightness, contrast, saturation, hue and sharpness can be adjusted separately for each channel.

Q9: Is it suitable for 24V trucks?

Yes. The operating voltage is 9V–32V.

Q10: Does it support AHD1080P output?

Yes. AHD1080P output is optional, with backward compatibility for 720P/1080P at 25/30fps according to the system configuration.