Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your NADAMOO Bur3121-P2-30 2D Wireless Barcode Scanner. This device is designed for efficient scanning of 1D and 2D barcodes, offering versatile connectivity and a unique adjustable back clip for mobile phone integration.
Product Features
- Adjustable Back Clip Design: The scanner features a retractable clip that allows it to be securely attached to mobile phones with lengths between 5.61-6.5 inches (13.5-16.5 cm). The clip includes anti-slip silicone to prevent damage to your phone.
- Dual Usage Modes: Can be used as a clip-on barcode scanner fixed behind a mobile phone for real-time data viewing, or as a standalone Bluetooth barcode scanner.
- Bluetooth Connectivity: Supports Bluetooth HID, SPP, and BLE modes, offering a wireless range of approximately 50 meters (164 feet) in open environments. Compatible with Windows, Mac OS, Android OS, and iOS devices.
- Advanced 2D CMOS Sensor: Equipped with a 300,000-pixel CMOS sensor for superior reading performance on both printed and screen-displayed 1D/2D barcodes.
- Enhanced Decoding Capability: Capable of reading damaged, distorted, colored, reflective, smudged, scratched, or poorly printed barcodes.
- Supported Barcode Types:
- 1D Barcodes: UPC/EAN, UPC/EAN with supplemental code, ISBN/ISSN, Code 128, GS1-128, GS1 DataBar, Code 39, Code32, Code11, Code 93, Interleaved 2 of 5, Industrial 2 of 5, Matrix 2 of 5, Standard 2 of 5, Codabar.
- 2D Barcodes: QR Code, PDF417, Data Matrix, Aztec. Also supports reading reverse 1D Code, QR Code, Data Matrix, Aztec (white barcode on black background).
- Two Scanning Modes:
- Manual Trigger Mode: Press the trigger to scan.
- Self-sensing Mode: The scanner automatically reads barcodes when detected, without needing to press the trigger.
- Long-lasting Battery: Features a 1200mAh battery for extended continuous use and standby time.
Setup
1. Attaching to a Mobile Phone (Optional)
- Ensure your mobile phone's length is between 5.61-6.5 inches (13.5-16.5 cm).
- Gently extend the adjustable back clip of the scanner.
- Position your phone within the clip, ensuring it is securely held by both the fixed top clip and the flexible bottom clip. The anti-slip silicone pads should protect your phone's surface.


2. Bluetooth Pairing
- Power on the scanner.
- On your host device (computer, tablet, or smartphone), enable Bluetooth and search for available devices.
- Select "NADAMOO Scanner" or a similar identifier from the list of found devices.
- Follow any on-screen prompts to complete the pairing process. The scanner supports Bluetooth HID, SPP, and BLE modes.

Operating Instructions
1. Scanning Barcodes
- Manual Trigger Mode: Aim the scanner at the barcode and press the trigger button. The scanner will emit a beep and/or vibrate upon successful scan.
- Self-sensing Mode: In this mode, simply present the barcode to the scanner's window. The scanner will automatically detect and read the barcode without requiring a trigger press.
Ensure the barcode is within the scanner's field of view and properly illuminated for optimal reading performance. The scanner can read various types of 1D and 2D barcodes, including those that are damaged, distorted, or printed on colored backgrounds.
2. Charging the Scanner
Connect the scanner to a power source using the provided charging cable. The indicator light will show charging status. A full charge provides extended operational time due to the 1200mAh battery.

Maintenance
- Cleaning: Use a soft, dry cloth to clean the scanner's exterior. For the scanning window, use a lens cleaning cloth and a mild cleaning solution if necessary. Avoid abrasive materials or harsh chemicals.
- Storage: Store the scanner in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the scanner regularly, even if not in active use for extended periods.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Scanner does not power on. | Low battery or power issue. | Charge the scanner using the provided cable. Ensure the charging cable is properly connected to a power source. |
| Unable to pair via Bluetooth. | Bluetooth not enabled on host device, scanner not in pairing mode, or out of range. |
|
| Scanner not reading barcodes. | Barcode damaged/unreadable, incorrect scanning mode, or scanner window dirty. |
|
| Data not transmitting to device. | Bluetooth connection lost or incorrect application focus. |
|
Specifications
| Feature | Detail |
|---|---|
| Model Number | Bur3121-P2-30 |
| ASIN | B09KXPTHNX |
| Connectivity Technology | Bluetooth |
| Compatible Devices | Desktop, Laptop, Smartphone |
| Power Source | Battery Powered |
| Item Weight | 4.4 ounces (125g) |
| Package Dimensions | 6.89 x 4.84 x 1.5 inches |
| Sensor Type | CMOS (300,000 Pixels) |
| Battery Capacity | 1200mAh |
| Phone Length Compatibility | 5.61-6.5 inches / 13.5-16.5 cm |
Warranty and Support
For warranty information or technical support, please refer to the documentation included with your product or contact NADAMOO customer service through their official website or the platform where the product was purchased. Please have your model number (Bur3121-P2-30) and ASIN (B09KXPTHNX) ready when contacting support.





