GKU D900 Dash Cam User Manual

1. Introduction

The GKU D900 is a high-performance front and rear dash camera system designed to enhance vehicle safety and provide reliable recording of your journeys. Featuring advanced technologies such as 4K video resolution, a STARVIS sensor, HDR, 5GHz Wi-Fi, and built-in GPS, this dash cam captures clear and detailed footage in various driving conditions. This manual provides comprehensive instructions for the installation, operation, and maintenance of your GKU D900 Dash Cam.

2. What's in the Box

Image: All components included in the GKU D900 Dash Cam package, neatly arranged.

• 1 x GKU D900 Front Camera (4K)
• 1 x Rear Camera (2.5K)
• 1 x 64GB SD Card
• 1 x Car Charger (9.84ft)
• 1 x Rear Camera Extension Cable (19.69ft)
• 2 x 3M Adhesive Mounts
• 2 x Electrostatic Films
• 1 x Crowbar (for cable routing)
• 5 x Cable Stickers
• 1 x User Manual

3. Product Features

• High-Resolution Recording: The front dash cam records in ultra-clear 4K at up to 60 frames per second (fps) when used alone. When both front and rear cameras are active, it records in 4K HDR 30fps (front) and 2.5K (rear), providing superior clarity.
  

  Image: Illustration of the dual-channel recording capability, showing clear 4K front and 2.5K rear footage.

• STARVIS Sensor & HDR Technology: Equipped with a STARVIS sensor for enhanced brightness and clarity in low-light conditions, and HDR technology to balance exposure, reducing glare and revealing details in shadows for crystal-clear video day and night.
  

  Image: Visual comparison demonstrating the superior clarity and detail captured by the STARVIS sensor at 4K 60fps.

  

  Image: A night scene showing the difference in video quality with HDR enabled versus disabled, highlighting improved visibility.

• 5GHz Wi-Fi & App Control: Features 5GHz Wi-Fi for faster and more stable video transfer speeds. Connect to the GKU GO app to view footage, preview, download, perform basic editing, and adjust camera settings directly from your smartphone.
  

  Image: A smartphone connected to the dash cam via 5GHz Wi-Fi, showing real-time preview and file transfer options.
• Built-in GPS: Accurately records your vehicle’s location, speed, and driving route, embedding this data directly into the video footage for an added layer of protection and information.
  

  Image: A car driving on a winding road, with GPS tracking data shown on a laptop and smartphone screen.

• 24-Hour Parking Monitoring: When connected with an optional hardwire kit (not included), the dash cam offers two parking modes: 24-hour time-lapse recording for continuous coverage, and G-Sensor parking mode to lock and record videos upon detecting strong impacts.
  

  Image: A parked car with an overlay indicating 24-hour parking monitoring, alongside visuals for collision detection and time-lapse recording.

• G-Sensor & Loop Recording: The G-Sensor automatically detects sudden collisions, locking and saving video clips to prevent overwriting. Loop recording ensures continuous footage by overwriting the oldest files when the storage is full.
  

  Image: Visual representation of the G-Sensor detecting an impact and loop recording managing storage space.
• Wide Angle & Rotational Cameras: The front lens is adjustable by 340°, and the rear camera rotates 360°, providing versatile coverage from almost any angle with a 170° wide field of view.
  

  Image: A diagram illustrating the rotational capabilities of both the front (340°) and rear (360°) cameras for flexible viewing angles.

• Super Capacitor: Utilizes a super capacitor for reliable operation in extreme temperatures, ranging from -4°F to 158°F, ensuring durability and a longer lifespan.
  

  Image: A visual demonstrating the dash cam's ability to operate in a wide range of temperatures, from hot deserts to cold snowy environments, thanks to its super capacitor.

• Storage Capacity: Supports Micro SD cards up to 512GB, with a 64GB SD card included in the package.
  

  Image: A chart illustrating the recording duration supported by various SD card capacities for both single and dual-channel recording.

4. Setup

4.1 Mounting the Dash Cam

Choose a suitable location on your windshield for the front camera, typically behind the rearview mirror to avoid obstructing your view. For the rear camera, select a spot on the rear windshield that provides a clear, unobstructed view. You can use either the provided 3M adhesive mounts or electrostatic films for installation. The electrostatic film allows for easier removal later.

Image: Step-by-step visual guide for inserting the SD card, applying the electrostatic film, and attaching the camera bracket.

4.2 Wiring

Connect the car charger to your vehicle's power outlet and route the cable discreetly along the windshield trim and dashboard. Use the provided crowbar tool to tuck the cables neatly. Connect the rear camera to the front camera using the extension cable and route it to the rear of the vehicle.

Image: A diagram illustrating the recommended cable routing for the front and rear dash cameras within a vehicle.

4.3 SD Card Insertion and Formatting

Insert the included 64GB Micro SD card into the designated slot on the dash cam. It is recommended to format the SD card directly through the dash cam's settings menu before first use and periodically thereafter to ensure optimal performance and prevent data corruption.

4.4 App Connection

Download the GKU GO app from your smartphone's app store. Turn on the dash cam and enable its Wi-Fi. On your phone, connect to the dash cam's 5GHz Wi-Fi network. Once connected, you can access live view, review recordings, and adjust settings via the app. Note: For enhanced protection, the dash cam's Wi-Fi does not support remote usage.

5. Operation

5.1 Automatic Recording

The dash cam will automatically power on and begin recording when your vehicle's ignition is started.

5.2 Emergency Recording (G-Sensor)

In the event of a sudden collision or impact, the built-in G-Sensor will automatically detect the event and lock the current video segment, preventing it from being overwritten by loop recording.

5.3 Manual Video Lock

Press the designated function button on the dash cam to manually lock the current recording, saving it as an emergency file.

5.4 Parking Monitoring

To enable 24-hour parking monitoring, the dash cam requires connection to an optional hardwire kit. Once connected, you can choose between:

• Time-Lapse Mode: Records continuous video at a low frame rate, compressing hours of footage into minutes.
• G-Sensor Parking Mode: Records a 60-second video when an impact is detected while parked.

Image: An illustration detailing the G-Sensor Parking Mode (collision detection) and Time-Lapse Parking Mode, emphasizing the need for a hardwire kit.

6. Maintenance

6.1 SD Card Management

To ensure the longevity and reliable performance of your SD card, it is recommended to format it every 2-4 weeks. This helps prevent data corruption and ensures sufficient space for new recordings. Regularly review and delete any unnecessary locked videos to free up storage.

7. Troubleshooting

• Dash Cam Not Powering On: Ensure the car charger is securely connected to both the dash cam and the vehicle's power outlet. Check if the vehicle's power outlet is functioning correctly.
• Wi-Fi Connection Issues: When connecting your smartphone to the dash cam's Wi-Fi, temporarily disable your phone's cellular data and other Wi-Fi networks to avoid interference. Ensure you are within close proximity to the dash cam.
• Poor Video Quality: Check if the camera lenses are clean and free from dirt or smudges. Ensure the electrostatic film or mount does not obstruct the lens. Verify that the recording resolution settings are set to your desired quality (e.g., 4K).
• SD Card Full / Recording Stops: Format the SD card regularly. If the issue persists, consider replacing the SD card with a new, high-quality Class 10 (or higher) Micro SD card, as specified in the manual.
• GPS Not Recording Data: Ensure the dash cam has a clear view of the sky to receive GPS signals. Verify that GPS functionality is enabled in the dash cam settings or via the app.

8. Specifications

9. Warranty and Customer Support

GKU provides a 12-month standard guarantee, which can be extended to 12+12 months upon official registration with GKU. Our dedicated customer support team is available 24/7 to assist you with any concerns or questions regarding your dash camera.

For support, please contact us at: support@gkutech.com