1. Introduction
This manual provides essential information for the proper installation, operation, and maintenance of your Sealan 24-inch 100Hz Full HD Monitor (Model Z240W12). Please read these instructions carefully before using the product and retain them for future reference.
2. Product Features
- Crystal-Clear Visuals: Features a 24-inch FHD 1920 x 1080 VA panel, delivering over 16.7 million colors with 100% sRGB wide color gamut for accurate and consistent visuals.
- Enhanced Refresh Rate: Experience smooth motion with a 100Hz refresh rate and adaptive sync technology, reducing ghosting and tearing.
- Seamless Connectivity: Equipped with HDMI and DC ports, plus an audio output port for versatile connections.
- Versatile Ergonomic Design: Includes an ergonomic tilt feature (5° forward to 15° back) and 75x75mm VESA compatibility for flexible placement.
- Integrated Speakers: The monitor includes built-in speakers for audio output.
3. What's in the Box
Please check the contents of your package. If any items are missing or damaged, contact customer support.
- Sealan 24-inch 100Hz FHD Monitor (Model Z240W12)
- Power Adapter
- HDMI Cable
- Warranty Card
- User Manual (this document)
- Quick Install Guide

Image: Contents of the monitor package, showing the monitor, power adapter, HDMI cable, warranty card, user manual, and quick install guide.
4. Setup Instructions
4.1. Monitor Assembly
Follow these steps to assemble the monitor stand and attach it to the display panel.
- Insert the stand into the monitor base.
- Tighten the base screw to secure the stand.
- Install the display bracket onto the monitor.
- Insert the bracket into the uppermost notch on the monitor back and press firmly until it clicks into place.

Image: Step-by-step guide for monitor stand assembly.
For wall mounting, use a VESA compatible mount (75x75mm) (not included) and follow the mount manufacturer's instructions.
4.2. Connecting the Monitor
Connect the monitor to your computer or other devices using the available ports.
- Power Connection: Connect the power adapter to the DC IN port on the monitor and then to a power outlet.
- Video Connection: Use the provided HDMI cable to connect the monitor to your computer's HDMI output. The monitor also supports VGA connections (VGA cable not included).
- Audio Output: If you wish to use external speakers or headphones, connect them to the Audio Out port. The monitor also has built-in speakers.

Image: Connection diagram illustrating various port options and how to connect devices like a PC, laptop, or game console.
5. Operating Instructions
5.1. Power On/Off
Press the power button, usually located on the back or bottom right of the monitor, to turn the display on or off. The power indicator light will illuminate when the monitor is on.
5.2. Input Source Selection
If you have multiple devices connected, you may need to manually select the input source. Use the monitor's OSD (On-Screen Display) menu buttons to navigate and select the desired input (e.g., HDMI, VGA).
5.3. On-Screen Display (OSD) Menu
The OSD menu allows you to adjust various display settings such as brightness, contrast, color temperature, and refresh rate. Refer to the Quick Install Guide for specific button functions and menu navigation.
- Brightness/Contrast: Adjust these settings to suit your viewing environment.
- Color Settings: Modify color temperature or gamma for optimal visual fidelity.
- Picture Mode: Select from preset modes (e.g., Standard, Game, Movie) for different content types.
- Adaptive Sync: Ensure this feature is enabled in both the OSD menu and your graphics card settings for tear-free gaming.
6. Maintenance
Proper care ensures the longevity of your monitor.
- Cleaning the Screen: Gently wipe the screen with a soft, lint-free cloth. For stubborn marks, use a monitor-specific cleaning solution applied to the cloth, not directly to the screen.
- Cleaning the Casing: Use a soft, dry cloth to clean the monitor casing. Avoid abrasive cleaners or solvents.
- Ventilation: Ensure the monitor's ventilation openings are not blocked to prevent overheating.
- Power Off: Always turn off the monitor and unplug it from the power outlet before cleaning or if it will be unused for an extended period.
7. Troubleshooting
If you encounter issues, refer to the following common problems and solutions.
| Problem | Possible Solution |
|---|---|
| No image on screen / "No Signal" message |
|
| No sound from speakers |
|
| Screen flickering or tearing |
|
| Monitor goes to sleep unexpectedly |
|
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | Z240W12 |
| Screen Size | 24 Inches |
| Resolution | FHD 1920 x 1080 Pixels |
| Refresh Rate | 100Hz |
| Aspect Ratio | 16:9 |
| Panel Type | VA |
| Image Brightness | 250 Candela |
| Connectivity | HDMI, DC IN, Audio Out |
| VESA Compatibility | 75 x 75mm |
| Tilt Adjustment | 5° forward to 15° back |
| Product Dimensions | 23.62 x 3.54 x 16.14 inches |
| Item Weight | 5 pounds |
| Manufacturer | Sealan |
9. Warranty and Support
Sealan is committed to customer satisfaction. Your monitor comes with a warranty, details of which are provided on the included Warranty Card. For any queries, concerns, or technical assistance, please contact our dedicated after-sales service team.
- Easy Replacement: Enjoy a 365-day easy replacement policy.
- Prompt Support: Solutions are typically provided within 24 hours.
- Quality Assurance: Committed to delivering products with zero defects.

Image: Sealan customer service commitments.