Introduction
The UGREEN CM520 Smart Tag is a compact and versatile tracking device designed to help you locate your personal belongings using Apple's Find My network. This manual provides detailed instructions for setup, operation, maintenance, and troubleshooting to ensure you get the most out of your Smart Tag.
Setup
1. Battery Installation
- Turn the Smart Tag counterclockwise to open the battery compartment.
- Insert a CR2032 lithium battery with the positive (+) polarity facing up.
- Turn the Smart Tag clockwise to securely close the compartment.

2. Pairing with Apple Find My
- Ensure your iPhone, iPad, or Mac is running iOS 14.5, iPadOS 14.5, or macOS 11 and above, and Bluetooth is enabled.
- Open the 'Find My' app on your compatible Apple device.
- Navigate to the 'Items' tab and tap 'Add Item'.
- Select 'Other Supported Item' and then 'Connect' when the Smart Tag is detected.
- Follow the on-screen prompts to name your item and assign an emoji.
- Confirm the linking to your Apple ID.

Operating Instructions
1. Locating Your Items
- Open the 'Find My' app on your Apple device.
- Select the UGREEN Smart Tag from your 'Items' list.
- Tap 'Play Sound' to make the Smart Tag emit an audible alert, helping you pinpoint its location if it's nearby.
- Use the map to see the last known location of your item.

2. Global Positioning
The UGREEN Smart Tag leverages Apple's vast Find My network, allowing you to locate your items globally. When your Smart Tag is within range of any Apple device on the Find My network, its location is securely updated and visible to you in the app.

3. Left Behind Alert
Receive immediate notifications on your Apple device if you leave your tagged item behind. This feature helps prevent loss by alerting you when the Smart Tag moves out of a specified range from your device.

4. Anti-tracking Function
The Smart Tag includes an anti-tracking feature. If an unknown Smart Tag is traveling with you over time, your iPhone will notify you. This helps prevent unwanted tracking.

5. Sharing Your Smart Tag
You can share the location of your Smart Tag with up to six other people, allowing friends and family to help track important items.

Maintenance
1. Battery Replacement
The UGREEN CM520 Smart Tag uses a standard CR2032 coin cell battery. When the battery is low, you will receive a notification on your Apple device. Replace the battery by following the steps outlined in the 'Battery Installation' section.
2. Cleaning
To clean your Smart Tag, wipe it with a soft, dry cloth. Avoid using harsh chemicals or abrasive materials, as these may damage the device.
Troubleshooting
- Smart Tag not connecting to Find My app: Ensure Bluetooth is enabled on your Apple device. Check if the battery is correctly installed and has sufficient charge. Try restarting the Find My app or your device.
- No sound when 'Play Sound' is activated: Verify the Smart Tag's battery level. Ensure the tag is within Bluetooth range of your device or an Apple device on the Find My network.
- Location not updating: The Smart Tag's location updates when it is within Bluetooth range of an Apple device on the Find My network. If your item is in a remote area, updates may be less frequent. Check the battery level.
- Left Behind Alert not working: Ensure this feature is enabled in the Find My app settings for your specific Smart Tag. Check your device's notification settings.
Specifications
| Brand | UGREEN |
| Model Code | CM520 |
| Model Name | UGREEN Smart Tag |
| Bluetooth® Version | V5.2 |
| Bluetooth Protocol | BLE |
| Battery Type | CR2032 |
| System Requirements | iOS 14.5, iPadOS 14.5, macOS 11 and above |
| Compatible Devices | iPhone, iPad, Mac |
| Applications | Apple's built-in 'Find My' App |
| Product Positioning Range | Global Positioning (GPS) |
| Operating Frequency | 2.400GHz-2.4835GHz |
| Frequency Response | 20Hz-20KHz |
| Material | Body shell/middle frame: PC+ABS, Bottom Case: Stainless Steel |
| Size | 3.19 x 3.19 x 0.85 cm |
| Weight | 56g |
| Warranty | 1 year |
| Package | UGREEN Retail Box |
Warranty & Support
The UGREEN CM520 Smart Tag comes with a 1-year warranty from the date of purchase. For technical support, warranty claims, or any product-related inquiries, please contact UGREEN customer service through their official website or the retailer where the product was purchased.
User Tips
- Always attach your Smart Tag securely to items you wish to track to prevent accidental detachment.
- Regularly check the battery status in the Find My app to ensure continuous tracking capability.
- For best results when using the 'Play Sound' feature, ensure you are in a quiet environment and relatively close to the item.
- Consider using the 'Left Behind Alert' feature for frequently misplaced items like keys or wallets.