1. Introduction and Overview
This manual provides comprehensive instructions for the SUNROAD Altimeter GPS Digital Outdoor Device, model SG_B07KWVMQJ2_US. This multi-functional device is designed for outdoor enthusiasts, offering precise navigation, environmental monitoring, and timekeeping capabilities.

Image 1.1: Front view of the SUNROAD Altimeter GPS Digital Outdoor Device.
The device features a clear digital display and robust construction, making it suitable for various outdoor activities.
Key features include:
- Three Satellite GPS Tracker: GPS+GLONASS+BeiDou compatibility for accurate positioning, speed, distance, 9 groups route tracking, and return records.
- Altimeter: Measures sea level height and climbing height, with historical data trends and target reminders.
- Barometer: Measures atmospheric pressure (300 hpa to 1100 hpa) with 24-hour trend charts.
- 16 Position Compass: Utilizes a high-precision sensor with horizontal correction for accurate direction finding.
- Multifunctional Meter: Includes humidity meter, thermometer, weather forecast, date, time, and alarm clock.
- Backlight Mode & Flashlight: Ensures visibility in low-light conditions and provides emergency lighting.
2. Setup
2.1. Charging the Device
The SUNROAD device is equipped with a built-in rechargeable battery. To charge the device:
- Locate the charging port on the side of the device. This port is designed for the included USB charging cable.
- Connect the small end of the provided USB charging cable to the device's charging port. Ensure it is inserted firmly.
- Connect the larger USB end of the cable to a standard USB power adapter (not included) or a computer's USB port.
- The device display will indicate charging status. A full charge is recommended before first use.

Image 2.1: The device connected to its USB charging cable.
Use only the provided charging cable to ensure proper connection and charging. Some standard USB-C cables may not fully engage with the port.
2.2. Initial Power On
The device typically powers on automatically when connected to a charger. To power on or off, or to navigate menus, use the buttons located on the sides of the device. Refer to the "General Settings" section for button identification.
3. Operating Instructions
The device features several modes accessible via the "MODE" button on the left side. The "SET" button (top left) is used for entering settings, and the "ALTI/UP" (top right) and "BARO/DOWN" (bottom right) buttons are for navigation and value adjustment. The "COMPASS/VIEW" button (bottom left) is for compass functions and viewing data.

Image 3.1: Overview of device buttons and their primary functions.
Familiarize yourself with the button layout for efficient operation.
3.1. GPS Tracking and Navigation
The device utilizes GPS, GLONASS, and BeiDou for accurate positioning. It supports speed, distance, 9 groups of route tracking, and return records.
- GPS Positioning: In GPS mode, the device will attempt to acquire satellite signals. Ensure you are in an open area for best reception. The positioning error is typically within 1 meter.
- Route Tracking: The device can track and record your routes. Consult the on-screen prompts or the detailed manual (if available) for initiating and saving tracks.
- Target Points: You can set up to 9 target points for navigation. The device can guide you back to a saved point.
- Speed and Distance: Real-time speed and distance covered are displayed in GPS mode.

Image 3.2: Visual representation of the device's GPS capabilities, including multi-satellite support, target points, distance, speed, vertical lift rate, and return journey record.
The device provides comprehensive GPS data for outdoor activities.
3.2. Altimeter Functions
The altimeter measures altitude and provides historical data.
- Altitude Measurement: Displays current altitude. Units can be switched between meters (M) and feet (FT).
- Historical Records: View trend charts and curve charts for the past 7 days and 24 hours. Data is automatically recorded every 30 minutes.
- Altitude Reminders: Set height target reminders and receive alerts for altitude changes between 1-200 meters.

Image 3.3: The device's ability to track and record altitude trends and curves over time.
Monitor your ascent and descent with detailed historical data.
3.3. Barometer Functions
The barometer measures atmospheric pressure, useful for weather forecasting.
- Pressure Range: Measures from 300 hpa to 1100 hpa (8.8 to 32.6 inHg).
- Trend Chart: View the 24-hour air pressure trend chart and curve chart to anticipate weather changes.
3.4. Compass Functions
The 16-position compass uses a high-precision sensor for accurate direction finding.
- Calibration: Supports horizontal correction for precise readings.
- Direction Display: Easy-to-read electronic dial for identifying directions.
3.5. Other Functions
The device integrates several other useful features for outdoor activities:
- Humidity Meter & Thermometer: Provides current humidity and temperature readings.
- Weather Forecast: Offers a basic weather forecast based on barometric pressure trends.
- Date & Time: Displays current date and time.
- Alarm Clock: Set alarms for reminders.
- Backlight: The backlight function can be maintained for 5 seconds, ensuring the dial is clearly visible day or night.
- LED Flashlight: A built-in LED flashlight provides lighting for outdoor emergencies.

Image 3.4: Icons representing the compass, alarm clock, time, and date functions.
The device combines essential outdoor tools in one compact unit.
4. Maintenance
4.1. Cleaning and Care
To ensure the longevity and optimal performance of your device:
- Wipe the device with a soft, damp cloth. Avoid using harsh chemicals or abrasive cleaners.
- Keep the charging port clean and free of debris.
- Store the device in a cool, dry place when not in use.
4.2. Water Resistance
The device has an IPX4 waterproof rating, meaning it is resistant to splashing water from any direction. It is not designed for submersion or use during heavy rain for extended periods. Ensure the charging port cover is securely closed to maintain water resistance.

Image 4.1: The device's durable ABS shell and IPX4 waterproof rating.
The robust design ensures durability in outdoor environments.
4.3. Battery Life
Battery life varies depending on usage. Frequent use of GPS and backlight will consume more power. Recharge the device regularly to ensure it is ready for your outdoor adventures.
5. Troubleshooting
- Device not powering on:
Ensure the device is fully charged. Connect it to the provided USB charging cable and a power source. The device typically powers on when connected to the charger.
- Difficulty with charging cable connection:
Use only the USB charging cable supplied with the device. This cable has a specific design to ensure proper contact with the charging port. Standard USB cables may not fit correctly.
- GPS signal acquisition issues:
Ensure you are in an open outdoor area with a clear view of the sky. Tall buildings, dense forests, or indoor environments can obstruct GPS signals. Allow several minutes for the device to acquire satellites.
- Inaccurate readings (Altimeter, Barometer, Compass):
For altimeter and barometer, ensure the device has been calibrated if applicable (refer to advanced settings). For the compass, perform a horizontal correction as described in the device's settings to ensure accuracy.
- Short battery life:
Reduce the use of power-intensive features such as continuous GPS tracking and prolonged backlight usage. Ensure the device is fully charged before each use.
- Screen is blank or unresponsive:
Attempt to connect the device to a charger. If the issue persists, contact customer support.
6. Specifications
| Brand | SUNROAD |
| Model Number | SG_B07KWVMQJ2_US |
| Product Dimensions | 3.94 x 2.56 x 0.59 inches |
| Item Weight | 3.84 ounces |
| Batteries | 1 CR2 battery required (included) |
| Water Resistance | IPX4 (Splash resistant) |
| Altimeter Range | Not specified, but features 0.5m-1m error. |
| Barometer Range | 300 hpa to 1100 hpa (8.8 to 32.6 inHg) |
| GPS Compatibility | GPS + GLONASS + BeiDou |
7. Warranty and Support
For warranty information and technical support, please refer to the official SUNROAD website or contact their customer service directly. Keep your purchase receipt as proof of purchase.
Manufacturer: SUNROAD
For further assistance, you may visit the SUNROAD Store on Amazon.