1. Product Overview
The Breloom ST13-U is a 13.3-inch rugged tablet designed for demanding environments. It features Windows 11 Pro, an Intel i5-1235U processor, 8GB RAM, and 256GB storage. This tablet is built to withstand harsh conditions with IP65 waterproof and dustproof certification and MIL-STD-810G military-grade durability. It offers robust connectivity options including 4G LTE, Wi-Fi 6, Bluetooth 5.2, and GPS.

Figure 1: Breloom ST13-U Rugged Tablet in an industrial environment, highlighting its durable construction.
2. What's in the Box
Verify that all items are present in the package:
- 1 x Breloom ST13-U Rugged Tablet
- 1 x DC Charger (12V 4A)
- 1 x Carry strap
- 1 x Wrist strap

Figure 2: The Breloom ST13-U Rugged Tablet shown with its included carry strap and wrist strap.
3. Initial Setup
3.1 Charging the Tablet
Before first use, fully charge the tablet. Connect the provided DC Charger (12V 4A) to the DC 12V port on the tablet and plug it into a power outlet. The charging indicator will illuminate.
3.2 Powering On/Off
- To Power On: Press and hold the Power button located on the top edge of the tablet until the screen illuminates.
- To Power Off: Press the Power button briefly to bring up the power options on the screen, then select "Shut down." Alternatively, press and hold the Power button for several seconds until the tablet powers off.
3.3 Inserting SIM and TF Cards
The tablet supports dual SIM slots and a TF card slot for expandable storage. Locate the card slots, typically protected by a sealed cover on the side or back of the device. Carefully open the cover, insert the cards as indicated, and ensure the cover is securely closed to maintain IP65 rating.
3.4 Initial Windows 11 Pro Configuration
Upon first power-on, follow the on-screen prompts to complete the Windows 11 Pro setup. This includes selecting your region, language, connecting to a Wi-Fi network, and setting up user accounts.
4. Operating Instructions
4.1 Display Usage
The 13.3-inch IPS display offers 1080x1920 resolution and 450 nits brightness for clear visibility, even in direct sunlight. Use touch gestures for navigation within Windows 11 Pro.

Figure 3: The tablet's 13.3-inch HD IPS display, showcasing its resolution and brightness capabilities.
4.2 Camera Functionality
The tablet is equipped with a 5MP front camera and a 13MP rear camera. Access the camera application through the Windows Start menu to capture photos or videos, or for video conferencing.

Figure 4: Illustration of the tablet's dual camera system, featuring a 5MP front camera and a 13MP rear camera.
4.3 Connectivity
- Wi-Fi 6 (802.11ax): Connect to wireless networks for internet access.
- 4G LTE: Utilize cellular data for connectivity in areas without Wi-Fi. Requires an activated SIM card.
- Bluetooth 5.2: Pair with compatible devices such as headphones, keyboards, or other peripherals.
- GPS/BeiDou/GLONASS: For precise location tracking and navigation.
4.4 Port Usage
The tablet features various ports for external connections:
- USB 3.2: For high-speed data transfer with USB devices.
- Type-C: Supports fast charging and data transfer.
- HDMI: Connect to external displays or projectors.
- RS232: For industrial communication with legacy systems.
- RJ45: Gigabit Ethernet port for wired network connections.
- Microphone + Earphone Jack: For audio input and output.

Figure 5: Detailed diagram illustrating the location and function of all ports and buttons on the Breloom ST13-U Rugged Tablet.
4.5 Customizable Buttons
The tablet includes customizable buttons (P, H, F) that can be programmed for specific functions or applications, enhancing workflow efficiency. Refer to the tablet's settings for configuration options.
5. Maintenance
5.1 Cleaning
Despite its IP65 rating, regular cleaning is recommended. Use a soft, damp cloth to wipe the screen and body. Avoid harsh chemicals or abrasive materials. Ensure all port covers are securely closed before cleaning with water.
5.2 Battery Care
The 8000mAh battery provides up to 10 hours of operation. To prolong battery life, avoid extreme temperatures and fully discharge and recharge the battery periodically. Use only the provided charger.

Figure 6: The tablet's 8000mAh battery, designed for extended use and fast charging.
5.3 Environmental Considerations
The tablet is designed to operate in temperatures from -20°C to 55°C. Store the device within recommended temperature ranges to prevent damage. Avoid prolonged exposure to direct sunlight or extreme cold when not in use.

Figure 7: Visual representation of the tablet's durability features, including temperature resistance, waterproofing, dustproofing, and drop protection.
6. Troubleshooting
6.1 Common Issues and Solutions
- Tablet does not power on: Ensure the battery is charged. Connect the charger and attempt to power on again. If unresponsive, perform a hard reset by holding the power button for 10-15 seconds.
- Screen is unresponsive: Restart the tablet. If the issue persists, check for system updates or contact support.
- No Wi-Fi/4G LTE connection: Verify that Wi-Fi is enabled in settings and you are within range of a network. For 4G LTE, ensure the SIM card is properly inserted and activated, and cellular data is enabled.
- Slow performance: Close unnecessary applications. Check for available system updates. Ensure sufficient free storage space.
7. Technical Specifications
| Feature | Specification |
|---|---|
| Model | Breloom ST13-U |
| Operating System | Windows 11 Professional |
| Processor | Intel i5-1235U (10-Core, up to 4.4GHz Turbo) |
| Graphics | Intel Iris Xe Graphics 80EU |
| RAM | 8GB |
| Storage | 256GB (expandable via TF card) |
| Display | 13.3-inch IPS, 1920x1080 resolution, 450 nits brightness |
| Front Camera | 5MP |
| Rear Camera | 13MP |
| Battery | 8000mAh (up to 10 hours) |
| Wireless Connectivity | Wi-Fi 6 (802.11ax), Bluetooth 5.2, 4G LTE (FDD/TDD) |
| Navigation | GPS/BeiDou/GLONASS |
| Ports | USB 3.2, Type-C, HDMI, RS232, RJ45, Microphone+Earphone |
| Durability | IP65 Waterproof & Dustproof, MIL-STD-810G, 1.2m Drop Resistant |
| Operating Temperature | -20°C to 55°C |
| Dimensions (LxWxH) | 12.99 x 8 x 0.76 inches |
| Weight | 3.2 pounds |
8. Warranty and Support
8.1 Warranty Information
The Breloom ST13-U Rugged Tablet comes with a 12-month warranty from the date of purchase, covering manufacturing defects. This warranty does not cover damage caused by misuse, accidents, unauthorized repairs, or normal wear and tear.
8.2 Technical Support
Breloom provides lifetime technical support and 24/7 multilingual customer service for the ST13-U tablet. For assistance, please contact Breloom customer support through the official website or the contact information provided with your purchase.